Trenchless Australasia June 2024

Breaking

the mould

Celebrating women in trenchless technology

An underground trailblazer | When two bores right a wrong | Minimising cultural impacts with trenchless technology | Best tips for HDD maintenance | Building an empire in New Zealand

We’re Creating the Future of Water for people and communities, for generations to come

PROJECTS

This magazine is the official journal of the Australasian Society for Trenchless Technology (ASTT) and is distributed to members and other interested parties throughout Australia and the AsiaPacific. It is also available on subscription.

The publishers welcome editorial contributions from interested parties. However, neither the publishers nor the ASTT accept responsibility for the content of these contributions and the views contained therein are not necessarily the views of the publishers or the ASTT. Neither the publishers nor the ASTT accept responsibility for any claims made by advertisers. All communications should be directed to the publishers.

Unless explicitly stated otherwise in writing, by providing editorial material to Prime Creative Media (PCM), including text and images, you are providing permission for that material to be subsequently used by PCM, whole or in part, edited or unchanged, alone or in combination with other material in any publication or format in print or online or howsoever distributed, whether produced by

and its agents and associates or another party to whom PCM has provided

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CEO

John Murphy

CHIEF OPERATING OFFICER

Christine Clancy christine.clancy@primecreative.com.au

MANAGING EDITOR

Molly Hancock molly.hancock@primecreative.com.au

EDITORIAL

Clemence Carayol clemence.carayol@primecreative.com.au

Vivien Topalovic vivien.topalovic@primecreative.com.au

BUSINESS DEVELOPMENT

Nick Lovering nick.lovering@primecreative.com.au

DESIGN PRODUCTION MANAGER

Michelle Weston michelle.weston@primecreative.com.au

ART DIRECTOR

Blake Storey blake.storey@primecreative.com.au

DESIGNERS

Blake Storey

COPYRIGHT

Trenchless Australasia is owned by Prime Creative Media and published by John Murphy. All material in Trenchless Australasia is copyright and no part may be reproduced or copied in any form or by any means (graphic, electronic or mechanical including information and retrieval systems) without written permission of the publisher. The Editor welcomes contributions but reserves the right to accept or reject any material. While every effort has been made to ensure the accuracy of information, Prime Creative Media will not accept responsibility for errors or omissions or for any consequences arising from reliance on information published. The opinions expressed in Trenchless Australasia are not necessarily the opinions of, or endorsed by the publisher unless otherwise stated.

© Copyright Prime Creative Media, 2021

ARTICLES

All articles submitted for publication become the property of the publisher. The Editor reserves the right to adjust any article to conform with the magazine format.

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Editor’s letter

Molly Hancock

With the recent addition of two female leaders to the Australasian Society for Trenchless Technology Council, the industry is making waves in fostering inclusive environments.

The Trenchless Australasia June edition contains specialised content focusing on how trenchless companies and organisations are working to ensure equality in their workplaces, as well as mentoring women to be future leaders of the trenchless industry.

Within these pages you will read about inspiring, hard-working women who have either mentored and supported women in the industry or are an exceptional female leader within an organisation.

Celebrating these individuals and the role they play within the trenchless industry is an important cause as we continue to inspire the next generation.

One woman making her mark in a maledominated sector is Greater Western Water’s (GWW) Allison Newland.

As a Senior Project Manager at the water utility, Newland is responsible for delivering new sewer and water infrastructure projects, which often involves trenchless construction.

Through her 16-year tenure at GWW, she has not only gained a wealth of knowledge, but her confidence has grown immensely – a key attribute Newland says has made her career soar.

While recognising Newlands’ journey is successful, there are still a number of hurdles in which we, as women, face.

Earlier this year the Workplace Gender Equality Agency (WGEA) published base salary and total remuneration median gender pay gaps for private sector employers in

Australia with 100 or more employees.

The results showed that there is significant variation in the gender pay gap across different industries, ranging from the construction industry where the mid-point employer gender pay gap is 31.8 per cent to the accommodation and food services industry with a mid-point employer gender pay gap of 1.9 per cent.

WGEA CEO Mary Wooldridge said at the time that the “time for talk and excuses is over. Change takes action and employers need to double down on ensuring all employees are fairly represented and equally valued and rewarded in their workplace”.

Despite these hard truths, there are still a number of trenchless businesses providing an equal and growth-orientated platform for women within this industry.

In this edition we recognise and celebrate the achievements of the following women: Interflow’s Operations Manager Chris Godsil and Contracts Administrator Teia Comelli, Adept Civil’s Maddison Corrie, Pipe Core’s supplier SAERTEX multiCom GmbH’s Business Development Manager Katharina Helming, R&R McClure Excavations’ General Manager Kelly McClure, and Rob Carr’s Project Manager Marie Piette.

Transparency and accountability are critical for driving change. By shining a light on these women and their skills, it will hopefully encourage other women to enter into the trenchless industry.

Molly Hancock Managing Editor molly.hancock@primecreative.com.au

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THE AUSTRALASIAN SOCIETY FOR TRENCHLESS TECHNOLOGY

ABN 43 893 870 966 18 Frinton Place Greenwood, WA 6024 www.astt.com.au

President: Ben Crosby

Secretary: Trevor Gosatti

Vice President: Blair Telfer

COUNCILLORS

Western Australia: Aizezi Jiang

Queensland: Ben Crosby

New South Wales: Jason Marshal

Victoria: Ash Hamer

South Australia: Shaun Melville

New Zealand: Blair Telfer

Northern Territory: Luke Woodward

Tasmania: Vacant

President’s message

The last 12 months has been a successful period for the ASTT. Membership is healthy and it is seeing small, yet positive growth. We have also seen the addition of new councillors to the board, including Amy and Andrea.

This edition of Trenchless Australasia celebrates the women who help make the industry what it is today. Here at ASTT, we understand how important it is to provide a platform for women to be celebrated and are delighted to have Amy and Andrea join our board.

The society has a healthy bank balance which reflects the efforts of all. The ASTT has agreed to commit some of these funds towards meaningful projects in our Strategic Plan and our special interest groups (SIGs) to benefit our members and the promotion of trenchless.

Promotion of trenchless technology

In the last year, Council’s efforts are noticed with the positive promotion of trenchless technology across our many touch points.

Most notably our promotion of trenchless technology is seen readily at the conference in 2023. Coupled with this is our activity in forums, Trenchless Australasia, our integration with WSAA, our activity in the SIG and our partnerships with AusJet and the ATS. Promotion of the ASTT and trenchless in the recently established Young Trenchless SIG is a positive move to ensure engagement.

Trenchless forums

In the last 12 months the ASTT has been quieter than in most years with respect to the trenchless forums. I believe this is a function of meaningful content and being careful to make sure we have interesting and relevant content to present. This is an area where Council should focus on and further discuss in our regular monthly meetings. Councillor Aziz in WA continues to organise joint forums with the ATS which are always well received.

2024 – The “off” conference year No-Dig Down Under’s next conference is in September 2025 and planning has commenced.

Given that this year is an off year we as Council should focus our attention on the

following ASTT Council initiatives:

• Continuing forums around our regions

• The strategic plan and our commitment to commit more resources to initiatives

• Support of the SIGs

Council

This year we have seen more change to Councill than normal.

We welcome new Councillors:

• Amy Farrugia

• Andrea Edney

• Jason Marshall

• Luke Woodward

Strategic planning

Working on our Strategic Plan is ongoing as always. I feel we are all aligned with the actions and the timeframes which will unfold in the coming months.

Membership

Membership is healthy, however, in the next 12 months we should focus on growth with next year being a conference year and the following year being the International No-Dig in Auckland.

WSAA

Our partnership with WSAA has commenced strongly with us collaborating with this the peak water body of our industry. We are currently working on relining and rehabilitation which is exciting to ensure that our members will have a voice in WSAA’s work.

University partnership

UTS in Sydney invited me to deliver a Trenchless module in their bachelor’s degree in Tunnelling Engineering under their Civil Engineering Department. This module is being developed and please let me know if you are interested in helping.

NASTT partnership

This is going well, and we have recently received some updates to the training package content.

Ben Crosby

ASTT President

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With a focus on safety, innovation and collaborative delivery over the last 35 years, Rob Carr has achieved outstanding outcomes in water, wastewater and energy infrastructure projects in both Australia and overseas. Rob Carr is part of Soletanche Bachy a world leader in foundation and soil technologies and subsidiary of VINCI, a global player in construction across more than 100 countries. With outstanding capabilities to manage the complexities of any project, Rob Carr has the people, knowledge and experience to deliver success.

Secretary’s corner June 2024

New members

On behalf of the ASTT, I extend a warm welcome to the following new members:

Gold Corporate Member – Australia

Tunnelling Solutions – Christopher Franken: 24 Months

Silver Corporate Members – Australia

PLUMBLOGIC – Dane Hutchens: 24 Months

Silver Corporate Members – New Zealand Pipe Technologies Ltd – Rowan Burgess: upgrade from Individual member

Individual Members – Australia

Ryan Beheshti from WSP

Adrian Aminian from Spire

Christopher Dee from CSDEE

Retired Individual Member – Overseas

Asle Venas from DNV (Norway)

Young Professional Individual Members

Daniel Tringali from WSP

Charlotte Carter from Stantec

ASTT Annual General Meeting

The 32nd combined Council and Annual General Meeting was held in the Mornington Boardroom of Prime Creative

Media at 379 Docklands Drive, Docklands, Melbourne on 30 April 2024.

The Officers of the ASTT Council were elected and appointed as follows:

President: Ben Crosby

Vice President: Blair Telfer

Secretary/Treasurer/ISTT Representative: Trevor Gosatti

Congratulations to all Councillors appointed.

I wish to especially welcome new ASTT Councillors Jason Marshall representing NSW and Luke Woodward representing the Northern Territory. Previous NSW Councillor, Sudipta Basu remains on Council as an Interim Councillor together with Amy Farrugia and Andrea Edney who were appointed to Council last year and ratified for the next year.

ASTT Young Trenchless Professionals Group

As mentioned in the previous edition, a Special Interest Group (SIG) has been established to facilitate an ASTT Young Trenchless Professionals Group. Young Trenchless Professionals (YTP) are members 35 years and younger who are keen to be engaged in the trenchless industry further.

Under the guidance of the ASTT Victorian Councillor Ash Hamer, this group met in Melbourne recently to hold a forum and attend a function by the ASTT Council for the YTP in conjunction with the ASTT Annual General Meeting and the OzWater conference.

We look forward to the initiatives driven by this group for the benefit of the ASTT.

No-Dig Down Under 2025 & 2026

Our media partners Prime Creative Media have reported to us that there is already very strong interest for the ASTT No-Dig Down Under 2025 to be held in Melbourne, and the ASTT hosted ISTT International No-Dig to be held in Auckland, New Zealand in September 2026.

If you haven’t already done so, put these events in your planning calendar to be a participant as both events will provide great value for your businesses and the trenchless technology industry in our region.

Trevor Gosatti ASTT Secretary

There were several changes to the ASTT Council announced at the AGM and the new 2024/2025 ASTT Council is as follows:

Western Australia

Jiang Aizezi

New South Wales

Jason Marshall

Interim Councillor

Amy Farrugia

Tasmania Vacant

Victoria Ash Hamer

Interim Councillor

Andrea Edney

Queensland

Ben Crosby

South Australia

Shaun Melville

Interim Councillor

Sudipta Basu

New Zealand

Blair Telfer

Northern Territory

Luke Woodward

Standard:

Relining to commence in SA

SA Water is set to rehabilitate more than 2700m of sewer main across Whyalla through relining.

The work is part of SA Water’s $2 million project and involves relining pipes beneath several of the city’s roads including Booth Street, Cudmore Terrace, Nicolson Avenue and Playford Avenue.

As relining pipes utilises a PVC liner to feed inside a pipe to create a new internal surface and restore structural integrity, SA Water chose this as the right method.

“After investigating sources of this infiltration across our network and undertaking CCTV monitoring of high-risk areas where data indicated high salinity levels, we identified several pipes to be relined,” SA Water Senior Manager of Infrastructure Planning and Strategy Dr Daniel Hoefel said.

“Relining pipes is a far more cost-effective and less invasive approach when compared to replacing a pipe, which is especially beneficial in this location due to the surrounding marine environment.”

Final TBMs arrive for Sydney Metro West Breakthrough at Central Interceptor Tunnel

The final tunnel boring machines (TBM) have arrived on site for Sydney Metro West, which is gearing up to build Sydney’s second underharbour railway crossing.

The two TBMs will carve out the 2.3km twin tunnels from The Bays to Hunter Street as part of the Sydney Metro West – Eastern Tunnelling Package.

A tunnel boring machine (TBM) has broken through a concrete shaft wall at a Central Interceptor project construction site to complete the second of two link sewers.

The 2.8m diameter cutterhead broke through at the Norgrove Ave, Mt Albert site, making a major milestone for the New Zealand wastewater infrastructure project.

Link Sewer B is just over one kilometre long and intersects the main Central Interceptor tunnel and together with Link Sewer C, the link sewers will collect combined wastewater and stormwater flows from West Auckland.

Domenica is one of three TBMs working on the Central Interceptor project. Victoria, a 12m long microtunnelling TBM is connecting the main tunnel to the local wastewater network in Keith Hay Park, Mt Roskill. Whilst Hiwa-i-te-Rangi is currently 70m deep underground as she travels under Sandringham on her way to Pt Erin, Herne Bay as she builds the 16.2km long tunnel.

Domenica will be removed from the shaft in coming days, along with pipe-jacking equipment and other services.

A section of the Central Interceptor tunnel will go live before the end of 2024.

The project is due for completion in 2026.

These are the last of six TBMs being used for tunnelling on the 24km Sydney Metro West line.

Each TBM arrive in 32 pieces by ship at White Bay port in March 2024 and are currently inside the station box at The Bays being assembled for their launch later this year. The TBMs are mixed shield, which are

specifically designed to excavate through sandstone and under the harbour. This will be the second under harbour crossing undertaken by Sydney Metro using this technology, following the successful crossing between Blues Point and Barangaroo as part of the City and Southwest project.

The work is part of SA Water’s $2 million project and involves relining pipes.

Once launched, the TBMs will tunnel at an average rate of 90m per week.

Image: VILevi/stock.adobe.com

Domenica is one of three TBMs working on the Central Interceptor project.

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TBM retrieval box progresses for North East Link

The tunnel boring machine (TBM) retrieval box in Bulleen, Victoria is continuing to progress as excavation continues.

The retrieval box is where the TBMs for the North East Link will finish their journey from Watsonia over the next couple of years. Segments of the first TBM were lowered into the ground in March in Watsonia, where

two of the largest TBMs in the Southern Hemisphere will start digging the 6.5km tunnels in mid-2024.

The TBMs will soon work their way south from Watsonia toward Bulleen, while crews begin installing tunnel walls made of almost 44,000 individual concrete segments.

“This is another significant milestone for

North East Link – getting us closer to moving trucks off local roads and slashing travel times across the north-east,” Victorian Transport Infrastructure Minister Danny Pearson said. “We’re getting on with assembling TBMs on site so tunnelling can kick off in the coming months – building the longer 6.5km tunnels the community asked for.”

Major win for Rob Carr

Rob Carr has been awarded the contract for the West Dapto Package 3 – tunnelling works in New South Wales.

As part of the project in the Cleveland development area, Rob Carr will construct 1.45km of pipeline using slurry pressure balanced microtunnelling and also undertake associated civil works to aid the tunnelling operation.

“We extend our gratitude to Delivering 4 Customers (D4C) for entrusting us with the delivery of these critical infrastructure works, which is a testament to the trust and confidence placed by D4C in Rob Carr’s capabilities and expertise to deliver this project on time,” the company said on a LinkedIn post.

“We are eager to collaborate closely with D4C and the respective stakeholders to ensure the successful delivery of the West Dapto Package 3 – tunnelling works.”

The overall West Dapto Package 3 project, which is being delivered by D4C, will provide new water and wastewater

infrastructure, consisting of 14km of pipeline in total. The pipeline will service around 4500 new homes in the Cleveland

communities.

development area forming part of the West Dapto Urban Release Area, enabling growth of the

The work is happening next to the Manningham interchange that avoids the River Red Gum on Bridge Street.

This project will provide new water and wastewater infrastructure, consisting of 14km of pipeline in total.

Image: Danuta

Image: Rob Carr

Trenchless tech booms in WA

Trenchless methods are increasingly popular in Western Australia for municipal and mining projects. Trenchless Australasia takes a look at what projects were completed using trenchless technology in the past year.

Smart Lock Group educates at relining day in WA

Smart Lock Group, a leading provider of cutting-edge infrastructure solutions, participated in the Western Australia City of Gosnells’ in-house relining day in December, 2023. e event aimed to educate attendees on the bene ts of Smart Lock technology for infrastructure maintenance and repair.

Mick Polwarth, Smart Lock Group’s National Sales Manager, shared insights into the company’s non-invasive trenchless point repair techniques.

“As cities continue to grapple with ageing infrastructure, they require e ective methods of maintenance and repair, it was fantastic to engage with such a proactive group of innovative thinkers, allowing Smart Lock to be part of their maintenance journeys,” he said on LinkedIn. rough the informative session, attendees learned about the Smart Lock technologies capability and application, to help them become more e cient and responsive to their residents’ needs.

Smart Lock Group specialises in identifying innovative approaches, focusing on measurable improvements in time, cost, complexity, and safety.

Rob Carr locks in Alkimos project contract

Microtunnelling contractor Rob Carr has been awarded the contract for the construction of

the Alkimos Main Sewer Section 1 in WA. is major capital works project is being spearheaded by DevelopmentWA.

is will tie in with a 68m section of sewer beneath the rail corridor near Alkimos Station, completed as part of the Yanchep Rail Extension by METRONET.

e contract win for Rob Carr follows a competitive tender, which involved ongoing collaboration with several stakeholders for the major Alkimos Central Development.

is was a necessary and valuable part of the process to ensure a “best for project” outcome for all parties involved.

Rob Carr will self-perform the construction of 830m of DN1500 sewer and three access chambers.

e sewer will be constructed by two sections of microtunnelling (157m and 306m), with the remainder constructed by open excavation.

e company has advised that over the next few months, other work on the project will include the construction of a 10m diameter insitu concrete launch shaft some 9m deep, and a 12m deep receive shaft constructed using post and rail techniques.

Trenchless solutions in WA’s sensitive locations

Primus Line has demonstrated the advantages of trenchless technology for pipeline

rehabilitation in culturally sensitive areas, by successfully completing two installations for Rio Tinto in Western Australia.

e rst project, located near Cape Lambert, involved the renovation of a 1500-meter long high-density polyethylene (HDPE) pipeline. e second installation took place in the outback near Paraburdoo, where a 1000m cement-lined mild steel pipeline was rehabilitated.

Primus Line is a exible, safe and reliable pipeline relining technology that reduces earth movements to a minimum, usually only requiring two small construction pits at the beginning and the end of the pipeline section to be rehabilitated.

us, the areas of cultural heritage sensitivity remain completely untouched.

Compared to traditional pipeline replacement, the carbon footprint in construction is reduced by up to 90 per cent.

Merredin Shire Council wastewater pipes refurbishment authorised Allpipe Technologies, Merredin Shire’s authorised contractor, was tasked with the refurbishment of ageing wastewater pipes across the town of Merredin.

e project, which concluded by late July 2023, involved Allpipe Technologies working on both verges and roads, and within the boundaries of private properties.

e refurbishment process employed trenchless technology for sewer relining, a method that cleans and refurbishes existing wastewater pipes.

the life of this crucial infrastructure by at least 30 years.

During the project, residents and businesses might have noticed increased

management was in place to direct vehicles, cyclists, and pedestrians safely around the work area. Occasionally, night works were required, and access to properties was requested. In both cases, the Shire ensured to notify impacted residents in advance.

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Trenchless technology is on the rise in WA.

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An underground trailblazer

Trenchless Australasia sat down with Greater Western Water Senior Project Manager – Major Projects Allison Newland to discuss her career and her insights from working within the industry.

Allison Newland knows she works in a male-dominated industry, but she doesn’t feel it’s a ected her career.

She often nds herself as the only woman in the room as she navigates her work as a Senior Project Manager at Greater Western Water (GWW).

Newland manages projects to deliver new sewer and water infrastructure, which often involve trenchless construction, and her con dence has grown through her 16-year tenure at the water corporation.

“I’ve never felt less equal to anyone, and I haven’t experienced any challenges like that,” she said.

“I usually don’t even notice that I might be

the only woman in a team, which is good.”

Newland is in good company; at Greater Western Water, 80 per cent of the executive leadership team and 50 per cent of their board identify as women.

In Newland’s sphere, her Section Manager, General Manager and Greater Western Water’s Managing Director are all women.

Newland considers them all as informal role models.

Newland has never sought out a formal role model, she’s never needed to.

Instead, she connects with other women she works with, and when asked if she’s got any advice for female STEM graduates, she suggests they do the same.

Greater Western Water Senior Project Manager – Major Projects Allison Newland.

Images: Greater Western Water

“ e reality is, it is a male dominated industry, so try to reach out to other females and make those connections, to support each other,” she said.

When Newland was a civil engineering student, her cohort re ected the gender imbalance that continues through STEM courses today – less than 20 per cent of the students were female.

e relationships she built with her fellow female engineering graduates remain some of her most important, both personally and professionally.

“Although we’re all in di erent roles, we often bounce stu o each other to get a di erent perspective,” Newland said.

“We’re in completely di erent industries but face similar problems.”

She also values the relationships she has with her colleagues and feels a deep appreciation for the supportive working environment that they’ve fostered, despite the challenges and stresses that come with the role.

“In our team we always say we just want to support each other and if something goes wrong, we work on xing it,” she said.

“To me, the rewarding thing is when you do have challenges, but you get to work together to solve them - it might sound cliche, but I think that is what keeps us going.”

During Newland’s time at GWW, she’s worked across many parts of the business, from planning to design, to the environmental

compliance team, and now the project delivery team. ese experiences molded her career’s natural evolution from Civil Engineer to Project Manager.

“Every day’s quite di erent, but I do a lot of talking with team members, delivery partners and stakeholders, which is not what you’d expect for an engineer, but is de nitely normal and required for a project manager,” Newland said.

“I like the more interactive elements of

project management, seeing things happen on site. I like working with people to help solve their problems.”

Working in the water industry also brings her a lot of job satisfaction.

“Itt feels good to think that you’re helping to provide something that the community needs,” she said.

“It has its challenges like everything but ultimately, I feel good about what we deliver.”

Newland manages projects to deliver new sewer and water infrastructure.

From technical to flexible

Interflow explores how a values-led approach to hiring is opening the door for women in water.

Gender equity is widely recognised as a meaningful way to foster better outcomes for workers, customers, and the community. While targets and quotas play an important role in keeping diversity on the agenda, many organisations are left wondering what they can do to attract and retain more women.

Leading pipeline infrastructure company, Inter ow, may have a solution. By building a team based not solely on technical prowess but on shared values and behaviours, they have been able to welcome a diversity of perspectives into the business.

Inclusion begins with the hiring process

Key to attracting a diverse workforce to any industry is breaking down the barriers to entry. One such barrier in the water sector is the idea that an engineering degree is indispensable for project management roles.

Inter ow is challenging this by shifting the conversation from ‘who is most quali ed for the job?’ to ‘who is best for the team, who will add to the culture and bring new ideas?’

Chris Godsil, Operations Manager at Inter ow, said that the company previously had success bringing people from the eld into traditional engineering and project management roles.

“We took that idea and cast the net wider, outside of the engineering industry,” he said.

“We were looking for people from any industry with strong value and behaviour alignment with Inter ow, people who could communicate and build trust.

“Technical skills can be developed through training and on-the-job experience. What’s

really important to us is that behaviour alignment and transferable skills.”

ese skills and behaviours were evident in Sam Woods, who made the move from retail to become a Project Coordinator at Inter ow.

“In my previous role I was a project manager in a very di erent sector,” Woods said.

“I have key skills like communication, stakeholder engagement and managing timelines and budgets. ese have really helped me in my new role.”

Before taking the leap and switching industries, Woods was given the opportunity to visit a site and get a rsthand feel for what she was signing on to.

“It was actually Chris that recommended I

go out on site and see what we do,” she said.

“Usually when you change role you make that decision based on what you think you know about it. So, seeing a construction site and seeing, realistically, what I’d be managing, meeting the people I’d be working with – that sealed the deal for me.”

Inter ow’s shift in focus from technical to transferable skills has been proven to encourage more women through the door.

Just as important is providing clear career pathways that enable women to stay and thrive once they get there.

“One of the factors that made me interested in the role was that I could see the progression here,” Woods said.

“ at came from conversations I’d had and from looking at who was already at Inter ow and where they had come from.

“It made the risk of changing industries so much easier, knowing there was so much room to grow.”

Supporting careers, supporting lives Inter ow Contracts Administrator Teia Comelli said it was about 10 years ago she was a chef.

“I had no work-life balance. I wanted to change my career,” she said.

Comelli’s search for more balance led her to a new career in the water industry.

“Eventually I found myself at Inter ow and went straight into the eld, straight into the ground and getting my hands dirty,” she said.

Over time, Comelli’s changing life circumstances meant she needed a role that could adapt with her.

“My partner and I wanted to extend the family by one,” she said.

Interflow’s Operations Manager Chris Godsil.

Interflow’s Project Coordinator Sam Woods (le ).

When Comelli fell pregnant, she stepped away from the eld into an admin role. e transition set her up for an easy return to work after being on parental leave.

“I got a phone call asking if I’d like to jump into a similar role to what I was doing before I went on leave, which was organising training for the crews,” she said.

Like Woods, Comelli had a core set of skills that could be applied to other roles.

“She had a unique insight from working in the eld,” Godsil said.

“But perhaps more importantly, Teia was aligned to the behaviours and values we look for at Inter ow. It was really important to us that we support her to stay in the business.”

Comelli was o ered a position that leveraged her skills while providing the exibility she needed at this stage of her life.

“It was perfect for me because I understood the training that was needed, the crew dynamics, and how to structure the training to reduce the impact of it on their work,” she said.

“ e role had the exibility of being able to work from home, the exibility to take my little one to doctors’ appointments. Taking it was a no-brainer.”

Benefits beyond the talent pipeline

Inter ow’s simple change of approach has solved two problems; it opened the talent pool in a competitive market, and it created a pathway for women to enter the water industry.

Interflow’s Contracts Administrator Teia Comelli (right).

In practice, Godsil explained, the bene ts extend even further.

“Exposure to di erent leadership styles gained from other industries will unlock potential in our teams and enable them to be their best,” he said.

“At a time when our industry faces complex issues like water a ordability, water security, climate change, the more diverse our thinking, the better position we’re in to tackle them.”

Also apparent is the impact that value and

behaviour-led recruiting has had on the culture at Inter ow.

“We have seen a real uplift in culture and retention,” Godsil said.

“You walk around the o ce and there’s this really nice buzz because people feel they are working towards something they truly believe in. at’s pretty special.”

For more information, visit interflow.com.au

The Next Generation in Trenchless Technology

> Still the market leaders in laser guided microtunnelling

> Bore diameters from 325mm up to 2800mm

> Specialists in ‘free bore’, sleeve boring and pipe jacking in all sizes

> Used for gravity sewers, water mains, storm water, gas and electrical conduits.

Unit 2 / 85 Heatherdale Road, Ringwood Vic 3134 | PO Box 2500, North Ringwood Vic 3134 P: (03) 9872 4596 | F: (03) 9872 3293 | E: info@pezztrenchless.com.au

Paving the way

While the trenchless industry is considered to be a predominantly male industry, Adept Civil Group Supervisor

Maddison Corrie is breaking ceilings and challenging the stereotypes.

When Maddison Corrie rst joined Adept Civil Group, she saw a chance to test her skills while fuelling her passion for building and creating in the outdoors.

“I saw it as an opportunity to make an impact on the environment, challenge the stereotypes and be a part of a dynamic eld where my skills were valued, regardless of my gender,” Corrie said.

“ e trenchless industry has fuelled my desire to enter a traditionally male dominated industry and test my talent, leadership and innovation.”

Now six years later, she continues to fuel that passion with the support of her colleagues at Adept Civil.

“It’s a very encouraging environment to work in,” Corrie said.

“ e culture and the people within the company truly make it a supportive workplace.”

Specialising in water and sewerage drainage pipelines, pump stations and associated services, Adept Civil has earned its reputation as a leading civil engineering contractor by delivering quality projects on time and within the budget.

e company delivers on microtunnelling, pipe jacking, laser guided boring and shaft construction projects for clients across Victoria. It also has a strong focus on environmental management through its philosophies of education, communication, continual improvement, and company involvement.

e philosophy of company involvement is what led to Corrie leading the charge of using trenchless technology at the company.

“I remember when I rst joined Adept, I was fortunate enough to have the opportunity to help navigate the trenchless venture for the company,” Corrie said.

“I had absolutely zero knowledge or experience and I hadn’t even seen a trenchless machine, let alone know what it was.”

Within the rst project with the machine, Corrie was in the pilot seat operating it.

“I had absolutely no knowledge other than reading the manuals, in the months prior to the delivery of the machine,” she said.

“I’m proud of that in the sense that I built myself from the ground up and now I’m running the machine and overseeing it all.”

Combined with the support and guidance from her colleagues, Corrie said she is proud of how far the Adept Civil has come. However, she said every project has its challenges and di culties.

“But we just continue to nd a way and I’m probably most proud of that,” she said.

As a woman in a male-dominated industry, Corrie refuses to let gender de ne her capabilities and encourages other women to do the same.

“Stereotypes shouldn’t de ne us women,” Corrie said.

“ ere’s a world of opportunities within this industry so I encourage other women to give it a go.

“I hope my participation champions that fact and I’m a big believer that equity within the industry should be treated as safety is.”

As the trenchless industry continues to evolve, Corrie sees a wealth of opportunities for women too, especially with trenchless evolving as the population grows.

“As it continues to grow, so will the exposure for women in industry and that’s a really exciting place to be,” she said.

For more information, visit adeptcivilgroup.com.au

Images: Adept Civil Group

The company delivers on microtunnelling, pipe jacking, laser guided boring and sha construction projects for clients across Victoria.

Corrie leads the charge of using trenchless technology at the company.

Adept Civil Group Supervisor Maddison Corrie.

Leading the way with comprehensive support

Customers are finding unparalleled support and expertise through Pipe Core, a leading trenchless supplier dedicated to empowering its customers with top-notch solutions and comprehensive assistance.

Central to Pipe Core’s philosophy is its commitment to providing extensive support to its customers as a supplier.

Whether it is through training, on-site installation support or guidance in material and equipment selection, Pipe Core o ers a full circle of service covering all facets of the supply chain for customers.

is can be seen through the company’s partnership with SAERTEX multiCom® GmbH, in which Pipe Core is the exclusive distributor of its products in Australia and New Zealand.

SAERTEX multiCom® GmbH o ers a portfolio of berglass-reinforced liners for wastewater and supply lines, such as the SAERTEX-LINER® H2O.

is collaboration has brought together cutting-edge products and localised support, through the presence of SAERTEX multiCom GmbH Business Development Manager Katharina Helming.

A seasoned expert who serves as a crucial link between SAERTEX multiCom GmbH and its Australian and New Zealand customers, Helming’s wealth of knowledge allows her to provide tailored support to customers.

rough her support, Helming guides clients towards the most suitable solutions for their speci c project needs and challenges by providing tailored material and equipment recommendations.

“Whether it’s selecting the right products or optimising installation processes, we want to ensure that customers receive personalised

support at every stage of their project,” Helming said.

“ rough our collaboration with Pipe Core, we can ensure our customers can access this level of support.”

Recognising the importance of education and training, Pipe Core supports its customers through comprehensive

Potable water liner being  installed.

Installation in progress.

documentation provided by SAERTEX multiCom, including detailed installation manuals, insightful case studies, and supportive marketing materials.

is wealth of information empowers clients with the knowledge they need to make informed decisions and ensure successful project outcomes.

Another example of supporting the trenchless industry is seen through SAERTEX multiCom GmbH providing onsite installation support.

“Pipe Core o ers additional support by deploying an application engineer from SAERTEX multiCom GmbH’s global technical team on high-risk or high-value projects, or when installers need support onsite,” Helming said.

“ e application engineers are really handson and can help customers on site, depending on how complex a project is.

“We often use this secondary on-site support as additional training for the installation crew. It allows us to observe their methods and provide tips and tricks to streamline processes and make tasks easier.” is personalised approach ensures customers receive the support they need to overcome any installation challenges and achieve optimal results.

Pipe Core also sets itself apart by o ering comprehensive training programs, allowing installers to become certi ed professionals.

Led by Helming for theoretical education and supported by application engineers for practical training, these programs equip installers with the skills and knowledge necessary to excel in their eld.

First joining SAERTEX multiCom GmbH as an Assistant in Product Management, Helming has worked her way through the company to her current role.

She said the support from the company as well as the comradery of the trenchless

industry, has allowed her to grow and experience new opportunities, as seen through her work with Pipe Core.

“I’ve worked with SAERTEX multiCom for nearly eight years now and it is still my rst employer, and that’s just a re ection of the industry,” Helming said.

“Especially here in Australia through Pipe Core, everybody has been very warm and welcoming to the fact that they have someone here from the manufacturer.”

With Pipe Core’s diverse mix of employees and being in the notable position of more than 50 per cent females in the company, Helming said this re ects the company’s inclusive environment and culture.

“I think that mix makes it really interesting and supportive for customers,” she said.

“SAERTEX multiCom and Pipe Core are de nitely family orientated businesses, and you can feel that family spirit in both.”

With a personal touch to providing customer support, the company o ers a full-service approach that sets it apart from other distributors.

By empowering customers with knowledge, expertise, and continued support, Pipe Core and SAERTEX multiCom are driving innovation and excellence in the trenchless technology industry.

Breaking the mould in trenchless

From job management to procurement, R&R McClure Excavations General Manager Kelly McClure is adamant: trenchless is much more than being on the tools.

When Kelly rst started dating her now husband Tim McClure, little did she know where she would go within the trenchless industry.

“Dating a guy in the trenchless or civil industry, you always get wrapped up in doing what they do, especially on the weekend,” she said.

Based in Castlemaine, Bendigo and Mildura, Victoria, R&R McClure Excavations specialises in the installation of underground power, water and communication for utilities, government, trades, and private enterprise.

R&R McClure also has an extensive horizontal directional drilling (HDD) capability and is used by the company as it is a way to eliminate disturbance to the environment, cultural and socially sensitive sites.

After ve years of dating, Kelly was asked by Tim’s father Robert McClure to join the family business, which she had already been a part of by working on the company’s accounts.

Now, 25 years later, her role as General Manager crosses a wide spectrum of duties.

“My day starts with making sure that all of our 48 workers have their jobs, equipment and all the knowledge to go out and succeed to their working days,” she said.

“I oversee all the management of the jobs, I cover HR and employment, admin contracts as well as equipment procurement.”

For Kelly, being held in a management

position in a male dominated industry breaks the mould.

“It’s showing that women can actually do the things that men do,” she said.

“ e traditional sense of trenchless is a whole lot more than sitting on the drill.” is is also seen through her management on through various projects such as the Rapid Earth Fault Current Limiters (REFCL) project, which saw the company bore 40km between 2019 and 2021.

“ ere were kilometres of dealing with bush re mitigation areas and we made sure we had all the pipes and cables were in the ground in time for the bush re season to come along,” she said.

“Some of these areas were in dense bushland while others were in areas where they had a lot of native vegetation so, to be able to complete all of

that with trenchless and minimal disruption to the ground was great.”

When it comes to giving advice to women within the industry, Kelly said there’s endless opportunities within trenchless.

“Some people de ne trenchless as being on the actual drills and drilling,” Kelly said.

“Whereas in our workforce, we have six women in our workforce, one an engineer and another mechanical draftsperson and these are crucial roles within the trenchless industry.

“ e whole trenchless world is more than what’s commonly perceived.”

With over her 25 years of experience within the industry, Kelly said trenchless has come a long way and sees innovation coming through R&R McClure’s work.

“From 1988 to 1996, the industry was about borers that were very manual to operate, had limited ability and were hard work on people,” she said.

“During 1996 to 1999, we progressed to developing our own bed borers to limit the amount of manual handling on sta .

“ roughout the years from 2000 until now in 2024, we have seen the purchase of over 26 HDD drills and the progression of trenchless moving along in leaps and bounds being smarter and more savvy to the customers.”

For more information, visit rrmcclure.com.au

R&R McClure has six women within its workforce.

R&R McClure specialises in the installation of underground power, water and communication.

“Don’t let stereotypes hold you back”

Trenchless Australasia sat down with Rob Carr Project Manager Marie Piette to discuss her career and work at the microtunnelling contracting company.

From Norway to Cambodia and now Perth, Western Australia, Marie Piette’s career within the trenchless industry has taken her across the globe, and she’s not letting stereotypes stop her.

For her, the passion begins and ends with working in tandem with the environment.

“With underground construction, I feel like I’m working with the elements by building assets that are integrating into the ground,” Piette said.

“It almost feels like teamwork with the ground.”

First studying Earth Sciences and Geotechnics at university, Piette then began her career working on the construction of a new subway in Paris.

“At that time, I had the chance to work with some very inspiring people,” she said.

“ ey really were pioneers and leaders in their elds, so it gave me the passion for the profession.”

She then moved to work in various roles in di erent countries for eight years before joining Rob Carr in April 2023.

Working as Project Manager, Piette’s primary responsibility is to ensure projects are delivered on time, safely, on budget and environmentally friendly. It also involves many aspects of scheduling, team management and contracting budget forecasts.

“Essentially, each project I am involved with is similar to a small-scale company,” Piette said.

“As manager, we pretty much t in all the positions within that.”

Speci cally working for Rob Carr, she enjoys the technical aspect of microtunnelling.

Piette said there is a very interesting technical component as well because in microtunnelling, you often have to deal and manage many unknowns.

“So, as manager, it’s very thrilling to have the opportunity to optimise everything,” she said.

Currently, Piette is managing works for the ornlie-Cockburn Link, part of WA’s METRONET, the single largest investment in public transport for Perth.

e ornlie-Cockburn Link will be Perth’s rst east to west cross line connection, which will make travel more exible for commuters.

e link will close a 14.5km gap in the eastern rail corridor by connecting the Mandurah and Armadale- ornlie lines, as well as catering for growth across the southeastern suburbs.

“A few years ago, Rob Carr was assigned to

relocate various water mains under the existing railway and to date, we have done seven microtunnels of various diameter,” Piette said.

“ is project is for the NEWest Alliance and the collaboration has been very rewarding

and productive throughout the duration.”

Despite joining the project once it had already begun and managing the challenges that comes with this, Piette has found the project rewarding.

“It’s a very culturally dense project and there’s a lot of di erent perspectives with that, but it has been a very rewarding project for me,” she said.

When giving advice for other women within the trenchless industry, Piette said it simply and encouraged others to “go for it”.

“Don’t let stereotypes hold you back,” she said.

“ e construction and trenchless industries have countless opportunities so, it’s a eld where we never get bored.”

Piette also recognised the challenges with this and acknowledged that the path may not be linear.

“We have to be realistic about the reality of the industry as well,” she said.

“So, there are challenges but the more women within the industry, the better it’s going to be as well.”

For more information, visit robcarr.com.au

Rob Carr Project Manager Marie Piette.

Images: Rob Carr

The Thornlie-Cockburn Link will be Perth’s first east to west cross line connection, which will make travel more flexible for commuters.

Highlighting trenchless innovations

As technology continues to evolve within the trenchless industry, so too do the opportunities for both men and women. TRACTO Product Manager Lea Freise shared her story, her path through the trenchless world, and her goal to inspire others to do the same.

What inspired you to pursue a career in the trenchless industry?

From an early age, I was interested in science and technology, which led to me choosing engineering studies after school. e main reason for me starting to work in the trenchless industry was the fascinating technology around TRACTO’s drill rigs and the wide range of applications associated with them.

Can you tell us about your experience working within the industry?

Shortly after starting at TRACTO, I had the opportunity to accompany the rst construction sites of our latest and largest rock drill rig, the GRUNDODRILL ACS300.

In your opinion, what unique perspectives or skills do women bring to the industry? Today, fortunately, women and men have equal access to technical education, study, or training - the knowledge base in technical professions is therefore gender-independent.

In my experience, as a woman, it is often easy to gain access to the mostly male contacts on construction sites. Women simply loosen up the male-dominated construction sector.

Why did you choose to work for TRACTO?

TRACTO is not only known for innovative technology, which of course fascinates me as a mechanical engineer, but also has a very good reputation as an employer in our region.

In addition, my role as Product Manager at TRACTO gives me the opportunity to come into contact with many di erent and interesting people.

is is either through contracting companies or with asset owners to gain insights into construction site processes and the use of our machines, or with internal and external colleagues to discuss technical aspects of our machines.

our customers and colleagues in the global TRACTO Group.

Bringing the customer’s perspective into the company, in other words transferring the requirements from the construction site to our various departments, is one of my main tasks.

Can you share a project or accomplishment that you’re particularly proud of in your time at TRACTO?

e last thing I was proud of was being involved in organising and running the HandsOn Days that took place at our headquarters in April.

Customers from all over the world came to little Saalhausen to learn about technical innovations and to exchange trends and experiences. is showed me that the industry is a great community and that we can work together to promote trenchless as “the better way”, as one of the Australian customers so aptly put it.

What advice would you give to other women who are interested in pursuing a career in the trenchless industry?

From then on, I had the opportunity to experience di erent construction site situations, gain a lot of new experience and, above all, learn a lot. All in all, this innovative industry o ers so many exciting challenges for further development.

Can you explain your role as Product Manager at TRACTO?

As Product Manager I am involved in a wide range of tasks related to the life cycle of our products and am in close contact with

If you enjoy innovative technologies and want to be part of an industry with a bright future, you should have no doubts about yourself and your abilities and just take the plunge.

Trenchless Australasia spoke with TRACTO Product Manager Lea Freise about her career and the power of innovation in the trenchless industry. For more information, visit tracto.com/au

TRACTO Product Manager Lea Freise.

Images: TRACTO

Simplicity for success

With an aim to provide a simplified approach to yield the best results for vacuum excavation, Vacuum Truck Supplies is set to launch a new range aimed at tackling this challenge.

Partnering with Aryan Pumps and Enviro Solutions, Vacuum Truck Supplies wanted to design a combination/nondestructive digging (NDD) and stand-alone NDD vacuum truck range dedicated for Australian conditions.

Aryan builds high-quality combination and drain cleaning products for global usage using proven reliable blowers, vacuum pumps, and water pumps. Its products are marketed and used extensively in Europe, UK, USA and Canada and are now available in Australia through Vacuum Truck Supplies.

Based in Mans eld, Victoria, Vacuum Truck Supplies has been in business for over 25 years,

providing a specialised service in vacuum tanker manufacturing.

To date, the company has built 1100 trucks and employs 25 people. is new range, known as the DrainVac and DiggerVac models, are set to present robust construction, while remaining simple to operate and maintain.

When it came to designing this new range, working with Aryan proved to be the right choice, according to Vacuum Truck Supplies Managing Director Rod Glue.

“ eir (Aryan’s) philosophies are in line with ours in that we want to build a very simple to operate and maintain machine that’s not overly

expensive,” Glue told Trenchless Australasia

“When I rst saw the product at a trade show in Germany, I was very impressed with it. We’re very con dent that the reliability and product development has been very thorough.”

Some of the features include stainless steel waste and water tanks, tipping, and full opening doors, and perhaps the most innovative feature, a non-computer control system.

“Many European trucks on the market rely on computers and a lot of customer feedback is that they break down or the software is out of date, and the trucks have been o the road,” Glue said.

Vacuum Truck Supplies is set to launch the DrainVac and DiggerVac models, set to present robust construction for the NDD industry.

“We’ve opted for a full manual control system, which is very simple to for any relatively skilled person to diagnose and x, should there be any issues with it.”

Available in both 6x4 and 8x4 ADR compliant Volvo cab chassis con gurations, the DrainVac has liquid rings while the DiggerVac includes helix blowers.

“In terms of reliability, we’ll see increasing operational hours as there is a simpli ed driveline,” Glue said.

“ at simpli ed driveline gives a lot of reliability that competitors will lose because of complex computer interfaces.

“We’ve also gone for minimal hydraulics so that gives us an increase in payload.”

With this comes no compromise on quality, safety, or user operational functions. Glue said any belts or shafts are guarded and protected in line with WorkSafe requirements.

“Any access points are clearly marked with safety yellow, and the machine has relevant sensors that would sound an alarm should something be not quite right,” he said.

With the new range anticipated to arrive in July, Vacuum Truck Supplies is aiming to provide support services as the product rolls out.

“We’re certainly envisaging moving up the eastern seaboard with support as we move with it,” Glue said.

“ e beauty of these particular units is that while most of the existing products in the market will need a lot of service backup.

“We believe that these won’t need the same level of service and backup because of the simplicity of build.”

For more information, visit vacuumtrucks.com.au

The new range is designed with Aryan Pumps and Enviro Solutions.

A kwik solution for Fitzroy to Gladstone Pipeline

kwik-ZIP is confident that if contractors choose its products, it not only provides them with the confidence they are using a quality spacer on their projects, but a proven product for the spacer requirements.

As part of the Fitzroy to Gladstone Pipeline project, regular kwik-ZIP customers GCE Contractors utilised kwik-ZIP HDX-90 spacers to facilitate the sliplining of a 1067mm OD SINTAKOTE® MSCL carrier pipe into a 1290mm ID RCJP casing over four crossings under the Capricorn Highway.

e Fitzroy to Gladstone Pipeline project comprises 117-kilometre pipeline, a water treatment plant, reservoirs and pumping stations connecting the Lower Fitzroy River to Gladstone Area Water Board’s existing water network at Yarwun.

It will provide water security for the area and support for the emerging hydrogen industry in the Gladstone region.

According to GCE Contractors Tunnelling Operations Manager Jesse Hooper, opting for kwik-ZIP spacers on this project was the right choice.

“ e HDX 90 really proved itself in this situation under heavy scrutiny,” he said.

e HDX’s unique load sharing design maximises the load bearing capacity of each runner and reduces point loading.

e simple and e cient installation process

does not require any special tools or steps. e fusion-bonded coating on SINTAKOTE pipes is crucial for corrosion prevention and must stay undamaged to work e ectively.

kwik-ZIP spacers not only provided protection but also feature integrated rubber grip pads, preventing slippage and preserving the coating’s integrity.

Like all of its products, the HDX/HDXT spacer system series are aligned with the kwikZIP’s ethos to provide simple, cost-e ective, and high-quality solutions.

While not used on this project, one product in the kwik-ZIP HDXT range – the HDXT58W - can accommodate Kwik-ROLLER wheels. ese clip-on wheels are ideal for use in longer runs to minimise wear and to provide signi cantly reduced co-e cient of friction.

kwik-ZIP spacers have no metal parts and are made from kwik-ZIP’s engineered thermoplastic blend that is exible, extremely tough and has a low co-e cient of friction.

e company’s large range of spacers caters for a wide range of carrier/casing pipe size combinations as well as providing exibility to deal with project alterations.

In Australia, kwik-ZIP’s HDXT and

HDX Series spacers have been successfully appraised by the Water Services Association of Australia (WSAA) against the requirements of WSAA product speci cation number PS-324 (casing spacers).

e WSA PS-324 product speci cation prescribes casings spacer requirements for correct protection of carrier pipes when installed inside casings.

e segmented design of kwik-ZIP products ensures that they are securely fastened to the carrier pipe and don’t run the risk of being knocked o the pipe, which is an issue for other similar products where each runner is individually attached to the pipe.

When this occurs, the carrier pipe can be damaged if it comes into contact with the casing pipe where the individual runners of other similar products have been knocked o . kwik-ZIP manufactures and supplies a range of products suited to a wide range of industry sectors including production well drilling, trenchless pipelines, horizontal directional drilling, ground engineering and the general civil and construction markets.

kwik-ZIP HDX 90 in situ on the Fitzroy to Gladstone Pipeline project.

kwik-ZIP spacers facilitated the slip-lining of a carrier pipe on the project.

Images: kwik-ZIP

Established in 1988 R&R McClure Excavations are based in Castlemaine, Bendigo and Mildura.

We specialise in the installation of Trenchless Underground Power, Water and Communications for Utilities, Government, Trades and Private enterprise. We are also committed to sustainable use of our Trenchless Installations through recycling, material re use and reduction of our energy trail.

• Directional Drilling (HDD) 1m to 300m in clay and rock conditions

• Hydro Suction Trucks

• Dry Suction Trucks

• Water Mains

• Power Mains

• Civil Construction

• Utility Emergency Repairs

• Recycling and Reuse HDD and NDD

• GPR, Service Locating and Asset Protection

admin@rrmcclure.com.au (03) 54723256

Bothar advances with significant new contracts

Having commenced work on the Fitzroy to Gladstone Pipeline earlier this year, Bothar Boring and Tunnelling has announced the award of further contracts as part of its ongoing collaboration with the McConnell Dowell BMD joint venture.

Bothar Boring and Tunnelling (Bothar) successfully commenced work on the Fitzroy to Gladstone Pipeline (FGP) earlier this year at Gavial Creek and Bruce Highway.

e company has now announced the award of further signi cant contracts as part of its ongoing collaboration with the McConnell Dowell BMD joint venture (MBJV).

ese additional packages include 18 specialist shafts as well as nine trenchless crossings consisting of AVN1200 micro tunnelling, auger boring, and ‘Bothar Built’ EPB-TBM methodologies.

e ‘Bothar Built’ EPB-TBMs, Earth Pressure Balance Tunnel Boring Machines designed and built in-house, will be pivotal in executing these works.

Bothar’s innovative approach and technical expertise in tunnel construction have been crucial factors in the expansion of their role in the FGP.

e FGP will connect to GAWB’s existing network in Yarwun, and includes construction of a water treatment plant, reservoirs, and pumping stations along its 117km length.

is infrastructure will enable long-term water security for GAWB’s customers and for future developments in the region’s renewable industries.

“We look forward to continuing our working relationship with McConnell Dowell BMD Joint Venture to be part of the safe delivery of the

FGP,” Bothar General Manager David King said. “Bothar remains committed to leveraging our extensive experience and innovative technologies to support the growth and sustainability of communities through the FGP, ensuring a legacy of reliability and environmental harmony.”

e company is currently active in all eastern states of Australia and is undergoing a phase of growth and expansion across Australia. is expansion underscores Bothar’s expertise and growing presence in infrastructure development and its ability to stay at the forefront of industry trends.

In Melbourne, Bothar is celebrating another successful project completion.

e company announced the successful completion of its latest project for Entracon Civil at ird Street, Black Rock. is project featured 200m of stormwater upgrade in water-charged sand. e company’s expert crew utilised a Herrenknecht AVN400 to navigate these tricky conditions with precision and e ciency.

Meanwhile, in Northern NSW, Bothar is using a custom-built Open Face TBM to install 68m of DN1500 RCJ stormwater pipe for a rail underbore project.

e selection of Bothar’s Open Face TBM was due to the mixed ground conditions and the presence of cobblestones and boulders in the area.

Bothar has also been awarded the trenchless design and construction of three additional stormwater road crossings following the completion of the rail underbore project.

e continued engagement on subsequent projects highlights Bothar’s reputation for delivering high-quality solutions and their commitment to meeting the evolving needs of their clients in each region.

As Bothar continues to broaden its operations and take on a diverse range of projects, the company is fostering collaborations with a diverse network of stakeholders, enhancing its standing as a reliable and forward-thinking partner.

For more information, visit botharboring.com

Images: Bothar Boring and Tunnelling

Bothar has been awarded further contracts for the FGP.

Bothar is undergoing a phase of growth and expansion across Australia.

When two bores right a wrong

The Edge Underground team is adamant: there is always a risk of things going wrong on a trenchless project, even for the most prepared contractor.

Experience and having the right equipment can be the di erence between still getting the job done to speci cations, and expensive delays.

Edge Underground faced this situation when a laser on its AXIS laser guided boring machine was unknowingly faulty, resulting in a straight, but o grade pilot line.

Despite this, the company’s experience and the AXIS’ ability to retract allowed the bore to be re-shot, ensuring an on-grade line was achieved with no delays.

In January 2024, Edge Underground was called in at the last minute by Connell Civil Group to install a 427OD GRP jacking pipe at 8.5m deep for a Clyde North project.

A pipeline installation contractor was already engaged for the project, but due to di cult ground conditions – high water table, and a clay and sand mix –they were struggling to meet the project’s tight timeframes.

An unexpected issue

When Edge Underground arrived on-site, the team set up and completed the pilot line, but it soon became clear there was a problem.

“Once we completed the pilot, we surveyed the shot and found that it was 170mm higher than speci ed. It was a perfectly straight line, but the grade was wrong,” Edge Underground Managing Director and Founder Stuart Harrison said.

“Despite the equipment being tested and checked beforehand, we discovered the laser had been damaged without us knowing.”

Usually, this would have caused a problem because the only recourse would have been to dig up the pipe, resulting in additional expense and delays.

However, thanks to Edge Underground’s unique microtunnelling technique and the retractable capability of the AXIS, the experienced team could overcome the hurdle.

“We explained what happened to Connell

Edge Underground’s unique microtunnelling technique and the retractable capability of the AXIS allow the experienced team to overcome hurdles.

Edge Underground successfully completed works for Connell Civil Group despite difficulties faced.

and they gave us a chance to x it when we told them we had a solution that would still achieve an accurate installation without the need to excavate,” Harrison said.

Fixing the mistake

Harrison said the team retracted the pilot and re-shot the line in the same bore, adjusting it to achieve the correct grade.

“Because we used a method where we were going from a 350mm pilot line to 450mm, we had space to adjust the line and get it right – and it came out on grade,” he said.

“Mistakes happen on trenchless projects no matter how good you are. Other contractors would pack up and leave if a mistake like this were to occur.”

But the team at Edge Underground prides itself on getting the job done and doing it right.

“Our experience, knowledge and marketleading equipment mean we have the ability to adjust and achieve a successful installation without impacting the project, even when a mistake occurs,” Harrison said.

Edge Underground then quickly completed another two lines.

“ e high-water table and unexpected pockets of sand created challenging conditions, and I understand why the other contractor was still struggling to complete their lines,” Harrison said.

“Vacuum machines are generally considered to not perform well when there is a highwater table, but our modi ed AXIS gives us abilities beyond anything that could

reasonably be expected of other machines.

“Combined with our expertise, we successfully completed the project.”

Meeting expectations

According to Connell Civil Group Managing Director Pat Connell, Connell Civil Group prides itself on quality and providing its clients the outcome they paid for.

“When we heard the line was incorrect, we fully expected to dig it up, but Edge Underground provided an alternative solution, allowing the project to be completed trenchless and meeting the client’s speci cations,” he said.

“ e willingness from Edge Underground to accept their mistake and x it showed great professionalism.”

Connell emphasised the competence of the Edge Underground team and its ability to get the job done.

“ eir knowledge, experience and equipment were clear in their ability to do a job to speci cations even in challenging conditions,” he said.

“We de nitely want to work with them in the future.”

The equipment used by Edge Underground allowed it to retract the pilot and re-shoot the line in the same bore, adjusting it to achieve the correct grade.

Connell Civil Group is known for completing projects to a high standard.

Building an empire in New Zealand

Empire Infrastructure has become a major player on the New Zealand trenchless market thanks to several significant sewer upgrade projects and its partnership with Parkinson and Holland.

The Empire GRP jacking pipe is a game changer, and it didn’t take long for construction company Parkinson and Holland to make the infrastructure solution supplier its sine-qua-non partner in crime for sewer upgrade projects.

e rst project was the replacement of a 113-year-old wastewater system on Nixon Street in Whanganui East.

Empire Infrastructure Director of Sales and Operations Aaron Mackley said the scale of this project was “quite signi cant” as it involved 540m of pipe.

“It was between 3-7m deep, a pretty challenging project for Parkinson and Holland, because the ground was soft and and sandy clay was present,” he said.

e soft and sandy conditions were identi ed as an issue prior to commencing work by the contractor.

Using a ground improving specialist, Parkinson and Holland constructed vertical jet grouted columns every 2m along the bore path.

As construction got under way, the contractor was also met with archaeological nds. ese included middens, which are Māori sites where food remains, bones, and charcoal is buried, and logs from totara trees carbon dated at 4575 years old.

ese logs proved to be challenging because they would block up the cutting teeth of the machine, so Parkinson and Holland would have to dig down and remove the obstruction, then ll the hole with grout and wait for it to dry before continuing the boring process.

Mackley said that these soft ground conditions were certainly a challenge on this project, as they could have had dramatic consequences on this sewer system upgrade.

“Soft ground conditions are always a risk when it comes to these types of installation,” he said.

“Contractors are always very wary of these conditions, because it can lead to a project being delayed or possibly having to be completely stopped.”

is was this reason why Parkinson and Holland chose Empire Infrastructure for its Centrifugally Cast Jacking pipe o ering, and opted for the installation of 542m of 427OD GRP pipe between 2.8m-7.4m deep through sand, alluvium and clay.

Images: Empire Infrastructure

Empire pipes offer numerous advantages, such as cost-effectiveness and delivery on time and in full.

Empire pipes are renowned for their excellent chemical and corrosion resistance.

“Parkinson and Holland opted to go with the Empire pipe because of its distinctive features,” Mackley said.

“It is a centrifugally cast pipe which has the added value of a smooth outside wall with a low co-e cient of friction, this enables contractors to get through those sticky sandy conditions with ease.”

A similar scenario was replicated on a second and smaller scaled sewer upgrade project in Dunkirk, a coastal city in northern France.

Mackley said that even if the project wasn’t as big as the previous one, Parkinson and Holland chose to use Empire Infrastructure’s

glass reinforced plastic (GRP) pipes due to the soft and sandy ground conditions.

According to Mackley, the advantages of using a centrifugally cast pipe such as the Empire Infrastructure’s pipe are numerous.

“ e Empire Infrastructure GRP pipe provides or creates less friction when installing the pipe in those sticky sandy type of ground conditions, and that is a huge advantage,” he said.

“Also, our product o ering is very coste ective, and our short delivery times are an advantage to our clients anywhere in the world.”

e relationship between Empire Infrastructure and Parkinson and Holland bloomed about three years ago.

“ is collaboration has been very bene cial, we have been awarded a number of projects by Parkinson and Holland, and we always look forward to working with them,” Mackley said.

“ is is because, at Empire Infrastructure, we pride ourselves on the premium services we give our clients and value the relationships we create.”

For more information, visit empireinfrastructure.com.au

The Empire GRP Pipes are widely utilised for deep excavation sewer, above ground sewers as well as jacking and tunnelling.

The smooth internal surface of the Empire pipes provides hydraulic efficiency and high abrasion resistance.

Minimising cultural impacts with trenchless technology

Yarra Valley Water is leveraging the benefits of trenchless technology to lessen impacts on the Upper Darebin Creek branch sewer project.

The project consists of building a 2.7km sewer pipe in Melbourne’s suburb Epping, which will provide essential sewer infrastructure to approximately 2400 surrounding commercial and residential properties.

e project is part of the Quarry Hills Precinct Structure Plan and will provide critical infrastructure to accommodate future population growth.

“By 2050, the Victorian Planning Authority (VPA) predicts this northern growth area will be home to around 300,000 people, with 100,000 homes, and support around 80,000 jobs,” Yarra Valley Water Acting General Manager Growth Futures Bridie Fennessy said.

“It also demonstrates our commitment to cultural preservation and sustainable infrastructure development to support

the growing needs of the community in Melbourne’s north.”

Construction began in May 2023, with microtunnelling used as the method of construction to reduce environmental impact.

Around 187m of microtunnelling construction was completed from Masereti Park to Lydgate Terrace.

Yarra Valley Water worked with delivery partner MFJ Constructions, with Pezzimenti Trenchless subcontracted for the microtunnelling works.

e utility also installed a 350m pipe with microtunelling to protect Aboriginal cultural heritage.

“We believe minimising impacts to the Darebin Creek and the surrounding environmentally sensitive areas is paramount,” Fennessy said.

“ ese methods were selected because they minimise disruption to the environment and cultural signi cant areas.

“One of the other bene ts is that they’re often more cost-e ective than traditional opencut methods.”

e use of trenchless technology was crucial in minimising impacts across the surrounding environments, according to Fennessy.

“Compared to traditional open-cut methods, trenchless technology is often more cost-e ective when considering total project costs and has a lower environmental impact,” she said.

“It reduces the need for extensive excavation and minimises disruption to the surrounding environment.”

ese bene ts were heralded when dealing with challenges around the construction area.

“One of the biggest challenges was that the sewer was being constructed in an area with high cultural heritage signi cance,” Fennessy said.

“We needed to complete salvaging along the alignment before construction.”

Yarra Valley Water worked with an Aboriginal-owned business Have A Dig in 2022 to identify potential impact excavation may have on the area.

“ is cultural salvage program involved a combination of hand and mechanical archaeological digs to identify, record and preserve artefacts,” Fennessy said.

“As part of the project’s design investigations, a Cultural Heritage Management Plan (CHMP) was developed.

“ e CHMP was approved by the Registered Aboriginal Party for the area, which is the

Wurundjeri Tribe Land and Conservation Cultural Heritage Council.”

Almost 700 Aboriginal stone artefacts were uncovered in Quarry Hills during complex assessment.

e utility is still analysing the salvage report and is expecting the number to be signi cantly higher.

ree of these Aboriginal pieces were recorded into the Victorian Aboriginal Heritage Register.

“Trenchless technology helped minimise disruption to cultural heritage sites by allowing for more precise construction methods that avoid disturbing archaeological sites,” Fennessy said.

“ e pipes were installed as deep as eight meters underground, which resulted in minimal impact above the ground.”

Microtunnelling was used as the method of construction to reduce environmental impact.

Images: Yarra Valley Water

The Upper Darebin Creek branch sewer project consists of building a 2.7km sewer pipe.

Yarra Valley Water worked with Have A Dig to identify potential impact excavation may have on the area.

Unlocking HDD excellence

In collaboration with TRACTO Australia, Adtech Contracting is advancing its horizontal directional drilling capabilities on a river crossing project in Seymour, Victoria.

Marking a signi cant milestone in its commitment to innovation and excellence in telecommunications construction, Adtech Contracting purchased the GRUNDODRILL ACS130 from TRACTO Australia.

e acquisition of the horizontal directional drilling (HDD) rig underscores Adtech Contracting’s vision to enhance its capabilities and broaden its service o erings.

“It’s a state-of-the-art machine and is very versatile,” Adtech Contracting Director Adam Vanderzee said.

“It ts the capabilities of what we require to expand upon our services.”

Based in Victoria, Adtech Contracting is a telecommunications and infrastructure construction company.

With a focus on expanding its services across the HDD space, the company looked to TRACTO Australia.

“ is is our second drill we’ve bought

The rig’s ‘All Condition System’ enables steerable drilling in all geologies, including hard rock.

The GRUNDODRILL ACS130 is the second drill Adtech Contracting has purchased from TRACTO Australia.

Images: TRACTO Australia

from TRACTO, with our rst being the GRUNDODRILL 4x,” Vanderzee said.

“It enables us to take on larger drilling jobs, like the one we’re doing currently in Seymour, and opens up the scope to di erent customers and their requirements.

“It also keeps us up to date with the latest trends in the industry.”

Known for its advanced features, the GRUNDODRILL ACS130 masters even the most complex bores quickly and reliably. e rig has 130 kilonewton thrust and pull, 4500 newton metres of torque, along with a powerful 115 kilowatts Cummins engine.

Its ‘All Condition System’ also enables steerable drilling in all geologies, including hard rock, through optional use of Elicon jet or twin tube rods.

Equipped with the latest drilling technology, this rig ensures minimal environmental impact and maximum safety, aligning perfectly with Adtech Contracting’s commitment to operational excellence, which is seen on the river crossing project in Seymour.

“During the last oods in Victoria, some infrastructure was washed away,” Vanderzee said.

“We’ve put in some telecommunications pipes under a river, and it’s been a bit of a challenge as the rst 50 metres have been in mud or clay and then 110m of rock.”

Now with the GRUNDODRILL ACS130 acquired, the company can drill into the hard rock with ease.

“We’ve had to start the drilling at 20 per cent gradient to get our clearance underneath the riverbed and we’ve had to turn that around again at a 20 per cent incline to get back out again,” Vanderzee said.

TRACTO Australia Sales Manager Daniel Toms said the collaboration between TRACTO Australia and Adtech Contracting is a testament to the company’s commitment to providing the best equipment for Australia’s HDD industry.

“At TRACTO Australia, we dedicate ourselves to delivering high-quality HDD equipment for our clients,” Toms said.

“We work as more than a supplier and always aim to provide the best after sales support.

“ is partnership between TRACTO Australia and Adtech Contracting is a testament to our commitment to the industry.”

For Vanderzee and Adtech Contracting, that after sales support has been crucial.

“ eir product support is second to none and they have a very quick turnaround on the unit, if we have any issues, which we haven’t really had,” he said.

“When we need some other drilling equipment like extra rods and so forth, TRACTO consistently works to provide that for us.

“If we needed something urgently, it is basically ready the next day to deliver to us here in Victoria.”

For more information, visit tracto.com/au

Now equipped with the latest drilling technology, Adtech Contracting is using the GRUNDODRILL ACS130 on a river crossing project in Seymour.

Best tips for HDD maintenance

Vermeer Australia reveals its most useful tips and tricks to maximise horizontal directional drilling maintenance.

If you want to maximise the metres of product placed in the ground while maintaining the longevity of your utility drills, it’s important to consider horizontal directional drilling (HDD) maintenance practices. Proactively addressing common component wear helps extend component life and prevent costly downtime.

Clint Recker, Vermeer Corporation Product Manager for utility HDD, recommends closely monitoring a variety of components on your rig:

• Sub saver

• Drill rods

• Grease buckets

• Rod wipers

• Vise dies

Continue reading to learn more expert advice on caring for these wear parts in HDD.

Sub saver

e sub saver touches every drill rod and can quickly wear out if not properly maintained. Following recommended procedures for making and breaking rods and using the carriage oat can help extend its life.

Being impatient when putting rod together and taking it apart can accelerate wear of the sub saver. is is where Vermeer drill rigs excel with their in-built torque limiter, able to stop the over-torquing of rod.

Good HDD maintenance includes keeping a close eye on the sub saver. Checking threads using thread gauges and replacing the sub saver in a timely manner can help prevent damage to the drill rod and other components.

How to determine when to replace the sub saver on your utility HDD rig

• What to look for: Jagged edges or rounded thread pro les indicate that it’s time to swap out sub savers.

But don’t just trust your eyes to determine the condition of threads.

Use a thread pro le gauge to accurately access the sub saver’s condition.

• What happens if you wait? e sub saver can potentially damage threads on every piece of drill rod it interacts with. You can damage a whole basket of rod due to a bad sub saver.

• Recker’s advice: Be diligent when making and breaking rod. Use the carriage oat; let it do its job. Gauges will help you evaluate wear on the sub and indicate when it should be replaced. Timely replacement of the sub saver will help extend the life of the drill rod.

Drill rod

e drill rod will eventually need to be replaced. e threads wear over time and the rods can bend when over steered. Keeping drill rod threads clean, greased and covered when not in use will help maximise their life.

Vermeer sets the industry standard with the Vermeer Firestick. Constructed of forged and heat-treated, high-carbon alloy steel, Vermeer Firestick drill rod has earned a reputation in the industry for strength and consistent quality. From the robust threads to double-shouldered design, Firestick stands up in high-torque applications while maintaining a large inside diameter to maximise drilling uid ow.

Each Firestick drill rod carries a batch number for traceability. Overall, it’s designed with a coarse and tapered thread pro le for quick makeup and is made of V145 grade steel. Firestick rod is preferred for those that desire longer-term performance and are boring with a high degree of di culty. It also provides operators a higher level of steerability while boring. is is the premium option for Vermeer drill rod and lets operators maximise their investment through longer wear and fatigue lifecycle on their drill rod.

Grease bucket

When it comes to HDD maintenance, ensure every threaded connection is greased each time a rod is added. Visibly verify there is grease in the bucket and that the auto greaser is performing. .

• What to look for: Check the level of grease each day at startup and re ll as needed.

• What happens if you wait? A lack of grease between threaded rod connections will accelerate wear and may result in seizing and galling. A lack of grease can also a ect the friction between the threads and prevent the rod connections from achieving proper torque.

• Recker’s advice: Rod grease prevents metal on metal threaded connections. So while this tip seems fairly obvious, it’s important to prevent accelerated rod wear.

Vise dies

e vise is responsible for torquing and un-torquing every drill rod going into the ground. Gripping each connection are vise dies, commonly referred to as vise jaws. Vice dies start o with small edges, or teeth, to grip the drill rod when making or breaking a connection. Over time, those edges will wear down and can start to slip when torquing a connection.

Here’s how to determine when to replace the vise dies

• What to look for: You will see the slip marks on the drill rod instead of clearly identi able teeth marks. If you notice rod slip, rst try cleaning the vise dies. If the vise dies are still slipping, it may be time for replacements.

• What happens if you wait: Keeping the vise clean and replacing the dies when necessary can help prevent damage to the drill rod through improper torque. If the vise dies aren’t gripping, it’s hard to achieve the desired torque when making a rod. You work the machine harder when trying to break a connection. Properly torquing drill rod connections can result in fewer instances of the rod joints becoming overtightened downhole.

• Recker’s advice: In addition to vise dies wearing out, grease buildup is another issue that operators should monitor. Grease in the vise dies prevents their teeth from grabbing and e ectively holding the rod. Along with

The D23x30 grease bucket.

A D40x55DR S3 drill rod.

The D24x40 S3 sub saver.

running a good rod wiper, it’s advised to power wash the vise die at least weekly. If the cleaned vise dies slip, swap them out.

Rod wiper

Every time a drill rod is pulled out of the ground it needs to be cleaned before putting it back in the rod box. at’s the function of the rod wiper. e rod wiper helps keep grit out of the vise dies and o the rack and rod loader arms.

e rod wiper also helps prevent grit from entering the rod box.

Your crew should monitor the condition of the rod wiper.

• What to look for: Debris buildup on the vise dies and ribbons of mud on the drill rod are indications it may be time to replace the rod wiper.

• What happens if you wait? A worn wiper rod can allow contamination buildup on the vise dies and in the rod box.

• Recker’s advice: You can help extend the life of a rod wiper by removing it when drilling out. e only time you need a rod wiper is when you’re returning rods to the box. You would then reinstall the rod wipers prior to pulling back.

An ounce of prevention

Time spent on the basic inspection and maintenance practices outlined will pay dividends in the form of reduced downtime and extended life of these components.Considering the high-stakes nature of utility installation projects utilising HDD, it’s time well spent.

For more information, call 1300 VERMEER or visit vermeeraustralia.com.au

infrastructure. Any Pipe. Any Place. Any Time.

Horizontal directional drill rod wipers.

D40x55DR S3 vice dies.

Australian-made Smart Lock makes impact internationally

A non-standard pipe size was no worries for Smart Lock when one of its valued international clients came with a challenge of rehabilitating an existing sewer asset for the Hong Kong Drainage Services Department.

When Smart Lock was called up by a client to assist the Hong Kong Drainage Services Department, the rehabilitation solutions contractor simply asked; “What size do you need?”

Like most rehabilitation projects it starts with aging and/or damaged assets, and each with their own challenges. ese can vary from access, ow, time, retention, size, or the environment they are set in. And this project wasn’t exempt and provided its own challenges, especially the diameter of the asset.

With DN440mm and DN480mm required, Smart Lock was able to collaborate with both the client and asset owner technical leads

to establish the exact internal diameters of the assets in question, then manufacture the custom size and deliver within two weeks from order.

In addition to the asset diameter challenge, time and ows were also an obstacle, with limited network retention. Time was of the essence, which led to the Smart Lock ow through air packer being the perfect piece of equipment for the job.

As a result, the Smart Lock packer allowed continual ow during instillation on the live asset, avoiding any inconvenience to the end user and additional cost for ow control.

Smart Lock provide speci c rigid packers

ranging from DN100 – DN900 along with other sewer rehabilitation accessories.

Excellent execution

With full endorsement from the Hong Kong Drainage Services Department, Smart Lock’s client was able to provide a solid rehabilitation methodology.

Not only did Smart Lock provide e cient project execution across multiple street pipe crossings, but it was also done with minimal impact on stakeholders, end-users, environment, and the asset.

Since its inception in September 1989, the Hong Kong Drainage Services Department has been striving to upgrade sewage treatment and ood protection levels in Hong Kong.

Over the years, it has completed projects such as the regulation of Shenzhen River Stage IV, the enhancement works for Kwun Tong Sewage Pumping Station, the Inter-reservoirs transfer scheme, and the revitalisation works of the Jordan Valley Nullah.

Smart Lock technology provides asset owners, asset managers and contractors the gold standard in point repairs with time and costs savings, a structural repair and full seal.

Smart Lock is proud to bring an Australianowned and manufactured innovative product to the trenchless industry, both domestically and internationally.

A Smart Lock being installed in Hong Kong.

Images: Smart Lock Group

Smart Locks were installed on a Hong Kong Drainage Services Department project.

NO-DIG DOWN UNDER

Redefining pipeline repair

When it comes to municipal sewage infrastructure, durability and longevity are paramount. Enter SECA with Quick-Lock.

In the ever-evolving eld of pipeline construction, the pursuit of longevity is paramount. Traditional rehabilitation methods often involve disruptive excavation, particularly in densely populated areas, leading to extensive downtime.

Enter SECA with the Quick-Lock system, a pipe repair solution that has been revolutionising trenchless technology for over three decades.

Crafted with precision from premium materials, including the renowned 1.4404 / 316L stainless steel sleeve and a robust rubber seal composed of EPDM, NBR, and Silicon, the Quick-Lock system exempli es excellence in sealing technology.

ese materials are engineered to withstand the harshest conditions, providing unparalleled resistance to municipal sewage water, and ensuring decades of reliable performance.

One of Quick-Lock’s standout features

is its innovative locking mechanism, which creates a seamless, watertight seal that is resistant to leaks and in ltration. is ensures the integrity of sewage systems, mitigating the risk of contamination and environmental damage.

e advanced materials used in QuickLock’s construction exhibit exceptional resistance to chemical degradation, making it ideal for municipal sewage applications. From in ltration abatement to addressing longitudinal and circumferential cracks, as well as root intrusion, Quick-Lock

provides a robust solution for a wide range of underground challenges, with seawater, potable water, and vertical bore solutions available.

Endorsed by esteemed institutions such as DiBt, CSTB, IKT, WRC, KTW, MPA, NSF, and WSAA and compliant with ASTM standard F3110-14, the Quick-Lock system guarantees the integrity of rehabilitated pipelines, often surpassing the performance of newly installed systems.

Statistical evidence supports its ability to restore pipe stability, o ering double the

The product provides structural trenchless pipe repair with heavy-gauge 316 stainless steel.

Quick-Lock has been awarded a 100year design life guarantee.

static reliability in aging pipe conditions.

Available through SECA, Quick-Lock’s trenchless installation, using advanced CCTV technology, signi cantly reduces disruption by allowing the system to be installed with minimal excavation, preserving the integrity

Founded in 1967, SECA is a leading supplier of equipment for the cleaning, testing, inspection, and rehabilitation of pipes, sewers, and drains.

With a long-standing history of providing innovative technologies for sewer asset management, SECA serves a diverse clientele, from residential plumbers to councils, water authorities, and contractors.

SECA’s expert knowledge, service, and support make it a one-stop shop for the trenchless industry, o ering the equipment and con dence needed for repair and rehabilitation projects.

Discover how Quick-Lock’s revolutionary 100-year lifetime design can rede ne your pipeline rehabilitation projects.

For more information, contact Brendan Howarth at Brendan.howarth@seca. com.au or visit seca.com.au

AT120

Available through SECA, Quick-Lock’s trenchless installation, using advanced CCTV technology, significantly reduces disruption.

THE WORLDS LARGEST ALL TERRAIN DRILL

Loaded with 120,000 lbs (533.8 kN) of pullback/thrust and 15,500 ft-lbs (21015 N·m) of rotational torque, the AT120 not only opens you up to new types of jobs but moves through long bores and large diameter installs with eye-popping power.

Featuring All Terrain technology, a 280-hp (209 kW) Cummins® engine that reduces environmental impact without losing any power, and 3,000 ft·lbs (4067 N·m) of inner rotational torque providing a 50% increase over its predecessor the AT120 provides additional power to drill through the toughest terrain around.

Like to know more?

Its advanced materials exhibit exceptional resistance to chemical degradation.

The Quick-Lock system is designed to withstand the harshest conditions.

Strengthening rehabilitation efforts

Mullane Trenchless Pipeline Solutions is now approved as a Tier 1 installer of Asoe Pipe-In Liner, marking a significant growth milestone for the company.

Developed by Asoe Hose Manufacturing in Asia, Pipe-In Liner is a fabric reinforced exible pipe and is ideal for relining high pressure water, gas, oil, and sewer pipelines.

e simple installation process involves folding Pipe-In Liner into a U shape, which is followed by pulling the liner into the host pipes before it is expanded.

Asoe Pipe-In Liner is also now an AS/ NZ 4020 Australian drinking water approved product.

In 2022, Mullane Trenchless Pipelines Solutions installed Australia’s rst Asoe pressure liner to rehabilitate a 250mm water main for the University of Newcastle.

“We’re very proud to be an approved installer of Asoe Pipe-In Liner in Australia,” Mullane Trenchless Pipelines Solutions Director Luke Woodward said.

“As we already have experience installing the product, this is a natural progression in our partnership with Asoe.

“We encourage all asset owners or pipeline rehabilitation companies to contact us to work on projects using this solution.”

With a size range of DN50 to DN1400, Asoe Pipe-In Liner is a versatile product, which has the ability to reline more than a kilometre in one pull.

“It is a perfect cost-e ective no-dig asset solution suitable for river crossings, road crossings, long pipe runs and congested areas where excavation is di cult,” Woodward said. Asoe products are used across the globe in

countries such as the USA, UK, Europe, Africa, Brazil, Israel, China, Australia, New Zealand and more.

“ rough Asoe, we have a large network of trenchless experts that are in regular contact with each other to share knowledge and help plan and deliver challenging trenchless projects,” Woodward said.

Founded in 2020, Mullane Trenchless Pipeline Solutions quickly established itself as a frontrunner within the trenchless industry.

“As we continue to forge ahead into the market, our sights are set on bringing innovations and cutting-edge solutions to the forefront of the industry,” Woodward said.

“ is milestone is a testament of our commitment to the industry and our Hunger to exceed our clients expectations through superior products and service.”

With over 250 long-term employees and a diverse client base that includes water authorities, councils, developers, builders, and educational and healthcare institutions, Mullane Trenchless Pipeline Solutions, part of the H L Mullane Group, delivers exceptional value through its tailored solutions.

e company o ers a comprehensive range of services tailored to suit pipelines of all types and sizes and specialises in complex civil water infrastructure projects.

From pushrod and crawler camera inspections to high-pressure jet cleaning, milling, and robotic cutting, Mullane Trenchless Pipeline Solutions employs advanced technology to deliver results.

e team’s expertise extends to patch repairs, UV and heat cured CIPP relining, as well as pressure pipe relining.

With capabilities ranging from 50mm to 1500mm, the company is equipped to handle residential, commercial, industrial, mining, and municipal projects with ease.

For more information, visit mullanetrenchless.com.au or mullane.com.au

Mullane Trenchless Pipeline Solutions is now approved as an installer of the Asoe Pipe-In Liner.

Mullane Trenchless Pipeline Solutions restoring an aging 250mm potable water main under the main entrance road to Newcastle University.

Images:

Mullane Trenchless Pipeline Solutions

JOIN US TO CELEBRATE THE BEST OF THE BEST FROM ACROSS THE AUSTRALIAN INDUSTRIALS SECTOR Celebrate the women who work tirelessly to advance the mining, engineering, road transport, logistics, rail, bulk handling, infrastructure and waste management industries. Thurs 20 June, 2024

Adapting to a region’s growing water and wastewater needs

Gippsland Water has completed two major projects to provide local communities with water security. Trenchless Australasia takes a look at the two projects helping increase water supply and improve sewer system capacity.

Securing water and ensuring sewer systems are optimal for the future is vital, and no one knows this quite like Gippsland Water.

e utility’s new pipeline is delivering more water to Drouin via the Moe-Warragul interconnect, creating a second source for the quickly expanding Victorian town.

Gippsland Water Senior Project Delivery Lead David Peake said this project had been crucial for the communities in the region.

“ e Warragul western ring main is a large diameter transfer main that loops through a largely undeveloped area to the west and south of Warragul. e project has allowed for future development between the Warragul and Drouin townships,” he said.

“Hydraulic modelling has also shown that the addition of the Warragul western ring main balances the pressure and ow characteristics of the Warragul water supply system, which signi cantly decreases the reliance on pre-

existing large diameter assets in the township.”

According to Peake, Warragul, Drouin, and surrounding towns have developed signi cantly in the last decade and the western ring main is part of Gippsland Water’s work to proactively manage the region’s growing water and wastewater needs.

e main was constructed using horizontal directional drilling (HDD) methods, which was selected to minimise the impact of the project on native ora and fauna, including

Images: Gippsland Water

As local communities’ demographics are booming, these projects were needed for a continued water security.

The western ring main is part of Gippsland Water’s work to proactively manage the region’s growing water and wastewater needs.

Construction of the Warragul western ring main began in mid-2022 and was completed in mid-2023.

Through two crucial projects, Gippsland has provided the Warragul communities with an increased water security.

the Warragul Burrowing Cray sh and Giant Gippsland Earthworm habitats.

“ e main extends for about 4.3km and consists of a 0.7km of DN450 PVC-M PN16 pipe section which was constructed via open trenching. 3.1km of DN560 PE100 PN 16 pipe was installed using trenchless (HDD) methods and 0.5km of DN560 PE100 PN16 was also constructed via open trenching,” Peake said.

“ e project was largely bored rather than open trenched to minimise the impacts to the natural environment.”

e new pipeline travels in a north-westerly direction through road reserves from Butlers Track to the railway crossing on Lardners Track.

It has also provided an alternative supply to the town of Warragul that can be used during maintenance or emergency work, avoiding interruptions to customers’ water supply.

According to Gippsland Water, Warragul and Drouin are two of the fastest growing towns in the region, and understand that building water and wastewater infrastructure is vital to keep ahead of the growth – and the Warragul western ring main project is an essential part of this work.

e pipeline will assist development in the south-west growth corridor of Warragul. It will also increase the volume and security of water supplies for Drouin.

e water main will be constructed around existing urban areas to provide an additional main to supply water to Drouin, with further extensions of the pipeline planned in the future, in line with local urban development.

roughout the process, Gippsland Water has actively worked to protect environmental and cultural heritage values, with environmental assessments completed for the Giant Gippsland Earthworm, Warragul Burrowing Cray sh and Strzelecki Gums.

e utility is committed to protecting environmental and cultural heritage values as the project continues, as well as making sure the works cause minimal disruption to the local species by using underground boring and keeping the route along previously disturbed areas of road.

Gippsland Water is working with Traditional

MARKSMAN

Owners to protect cultural heritage and any artefacts found.

Community consultation and engagement was also inherent to the project, as Gippsland Water engaged with residents and stakeholders while planning for this work, including consulting residents along the pipe route.

Gippsland Water has also started works to increase the Warragul’s north-east region’s sewer system capacity starting this year.

e project, for which a $7 million contract was awarded late last year, involves upgrading a 1.5km section of existing sewer main by installing a new larger pipeline

Gippsland Water Managing Director Sarah Cumming said the new sewer main was an important upgrade and would help prepare for Warragul’s future.

“We always look ahead and plan for the future to determine what services our customers will need and when,” she said.

e new pipeline will transfer all wastewater

CUT THRU THE NOISE.

from homes and businesses in Warragul’s north-east future boundary to the town’s wastewater treatment plant.

Construction will begin within the boundaries of the Warragul wastewater treatment plant before progressing in a northerly direction towards Stoddarts Road.

“It’s essential for our network to be able to withstand pressures like population growth, rainfall variability and climate change,” Cumming said.

“ e existing sewer main was built in 1971, when there were fewer homes and businesses in the area, but it is now nearing capacity.

“Upgrades like this one also bene t the environment by reducing the risk of spills and main failures.”

Construction will begin in the coming weeks, with tra c management in place on roads at various times during construction.

e project is on track to be completed in mid-2025.

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For these pipeline works, Gippsland Water used numerous trenchless techniques, such as HDD.

Corporate Members

Gold Corporate Members

DirectBor Australia

Herrenknecht AG

J&R Contracting Limited

Kellogg Brown & Root

Silver Corporate Members

Aaro Group

Abergeldie Rehabilitation Pty Ltd

ACP Australian Custom Pipes

Adept Drainage Pty Ltd

AECOM New Zealand Limited

AHD Trenchless

Applied Felts

Aqua Assets

AQUATEK Fluid Systems

Atteris Pty Ltd

Aurecon

Ausinland Pty Ltd

Aussie Trenchless Supplies Pty Ltd

Australian Pipeline Management Pty Ltd

Austunnel Pty Ltd

Ballarat Underroad Boring and Excavations Pty Ltd

BG Risk Solutions

Blick Group

Bortec Laser Bore Pty Ltd

BRP Corporation Pty Ltd

Bullseye Boring

CEA

CC Group

CDS New Zealand Ltd

Channeline International

D.J. Mac Cormick Contractors

DCS Manufacturing Pty Ltd

Derby Rubber Products

Digital Control - Australia

Directhitt Trenchless Pty Ltd

Diversified Services Australia

DM Civil

Dormway Pty Ltd

Draintech Solutions

Drillers World Australia

Dunstans

E&CC

Edge Underground

ELB Equipment Pty Ltd

Empire Infrastructure

Fulton Hogan

Fulton Hogan Construction Pty Ltd

Asset Owners

Auckland Council

Watercare Services Ltd

Greater Western Water

Michels Trenchless Pty. Ltd.

OptionX Group

Orion Consulting

Rangedale Rehabilitation and Renewals Pty Ltd

Systra Bamser

Future-Proof Solutions

GCE Contractors Pty Ltd

GN Solids Control

Golder

Hard Metals Australia Pty Limited

HDI Lucas

Holcim (Australia) Pty Ltd

Hynds Pipe Systems Ltd

IMPREG (AUSTRALIA) PTY LTD

Independent Sewer Consulting Services Pty Ltd

Insituform

Insituform Pacific Pty Ltd

Interflow Pty Ltd

Iplex Pipelines Australia

JB Trenchless Pty Ltd

kwik-ZIP Spacers

Kynection

L P Pipe Civil

LKL International Pty Ltd

M. Tucker & Sons Pty Ltd

March Cato Ltd

Matamata Directional Drilling

Maxibor Australia Pty Limited

McBerns Innovative Solutions

McConnell Dowell Constructors (Aust) Pty Ltd

McElroy Manufacturing Inc.

McMillen Jacobs Associates (NZ)

Melbourne Water

Metrocorp Technologies

Mudex

Mullane Trenchless Pipeline Solutions Pty Ltd

NEWest Alliance

NordiTube AUS Pty Ltd

Nu Flow Technologies 2000 Pty Ltd

Pezzimenti Laserbore Pty Ltd

Pezzimenti Trenchless Pty Ltd

Pezzimenti Tunnelbore Pty Ltd.

Pipe Core Pty Ltd

Pipe Doctor Australia Pty Ltd

Pipe Technologies Ltd

Knox City Council

Bowley Plumbing Services

EnviroPacific- SOLVE

Tunnelling Solutions

Veolia

WSP New Zealand Ltd

Water Corporation

Pipe Tek

Pipeline Drillers Group

Pipe Pro Drilling

PipeWorks

PLUMBLOGIC

Prime Creative Media

Prime Horizontal Pty Ltd

Qalchek Pty Ltd

Qenos Pty Ltd

R & R McClure Excavations

Raedlinger Primus Line Pty Ltd

Ravago NZ Ltd

RBM Plumbing and Drainage Pty Ltd

Rob Carr Pty Ltd

Rose Atkins Rimmer (Infrastructure) Pty Ltd

RPC Pipe Systems

SA Water

SASTTI Joint Venture

Schauenburg MAB

SEKISUI Rib Loc Australia Pty Ltd

SEQ Trenchless

Sewer Equipment Company (Aust)

SLB-M-I SWACO

Smythe Contractors Limited

STRABAG

Sydney Water

TDG Environmental (NZ)

TDM Pipeline Solutions

TRACTO-TECHNIK Australia Pty Ltd

Trenchless Advisor Pty Ltd

UEA Pty Ltd

Vacvator

Vector Magnetics

Vermeer Australia

Vertical Horizonz Australia

Veolia (NZ)

Vinidex Pty Limited

Warren Smith & Partners

Yarra Valley Water

Zhangzhou Anyue Advanced Materials

Technology Co. Ltd

About the ASTT

The Australasian Society of Trenchless Technology (ASTT) is a non-pro t organisation comprising of members throughout Australia and New Zealand.

e successful establishment of the trenchless industry in Australasia has been supported and promoted by the peak industry organisation, the ASTT, since it was established in 1991.

e society works tirelessly to promote the use of trenchless technology in Australasia, lobbying government and client organisations to highlight the advantages of using trenchless technology and the bene ts of training for industry.

Membership is open to all who are concerned with the provision of gas, water, sewerage, drainage, roads, telecommunications and electrical services.

ASTT membership provides trenchless professionals the tools and services they need to be better informed and better connected in this industry.

e ASTT is part of the International Society for Trenchless Technology (ISTT), an a liation of societies in more than 30 countries worldwide.

Membership applications

e ASTT currently o ers seven levels of membership available to all residents of

Australia and New Zealand or anyone who is also a nancial member of an existing ISTT a liated society.

The benefits of Membership depending upon category can include:

Up to 10 people from your organisation may be included in your membership and are entitled to receive the below bene ts:

• Acknowledgment of your company in every edition of the Trenchless Australasia magazine.

• An annual subscription to Trenchless Australasia magazine (six issues per year).

• An annual subscription to ISTT’s Trenchless Works

• A company listing Australasian Trenchless Directory (print and digital).

• Opportunity to promote your membership of the association by including the ASTT logo on your business communications and website.

• Access to guidelines and standards.

• Discount rates (normally 10 per cent) at national conferences and exhibitions.

• Discount rates (normally 10 per cent) at international conferences and exhibitions.

• Discount rates (normally 10 per cent) at trenchless forums.

• Opportunity to become involved in our Special Interest Groups which

are technical divisions of the ASTT representing speci c trenchless sectors.

• Special o ers and links with international organisations including the ISTT.

• Opportunity to nominate for ASTT and ISTT awards.

• Free access to ISTT past conference proceedings.

• A communication network to keep abreast of the advancement of the science and practices of trenchless technology throughout the world.

• Discounted rates at international No-Digs and national events including No-Dig Down Under.

How to apply

Visit the ASTT website on www.astt.com.au and check out the membership bene ts that apply for each category.

Your membership request will be emailed directly to the ASTT for processing. You will receive an invoice based on the information you supply. Acceptance does not take e ect until payment is received in full.

For more information, visit astt.com.au or email secretary@astt.com.au

People on the Move

Trenchless Australasia is tracking new appointments in Australia and New Zealand’s trenchless industries. Read the latest people moves below.

Madeline Galbraith – Account Manager – Pipe Core

Madeline Galbraith has been promoted to Account Manager for leading trenchless solutions supplier Pipe Core.

With a background in retail management, Galbraith first joined the company to fill a position in Trade Sales.

This supported the company’s sales effort in the trade retail space that distributes some of the world’s leading suppliers of trenchless technology.

Pipe Core stocks materials and equipment covering the entire project delivery ecosystem from inspection, cleaning, repairing, maintenance, and renewal.

“The technology is both innovative and complex, and Madeline has risen to the challenge, seeking knowledge to share with her customers,” the company shared.

“Pipe Core would like to congratulate Madeline on her efforts and is pleased to be able to support her internal progression through the organisation.”

Brett Moore – Civil Supervisor –Rangedale

Brett Moore has joined the Rangedale team as its Civil Supervisor in Victoria.

In this role, he will oversee projects and ensure that all work meets relevant regulatory standards, specifications, and quality requirements.

“A lot of my work involves problem solving; conducting inspections, identifying any issues or deviations, and implementing corrective measures as needed,” Moore said.

With a growing presence across Australia, Rangedale now have over 10 depots in Victoria, NSW, Queensland, and SA.

“To me the essence of Rangedale is that we are the go-to team to get the job done, we’re all about solving problems,”

Moore said.

“We work with a variety of clients from water boards and local councils to large construction businesses.”

Moore is not new to the trenchless industry, as he started in the field over 15 years ago, with a background in everything from digging to tunnelling.

Brendan Howarth – National Trenchless Business Development Manager – SECA

Brendan Howarth has joined SECA as its National Trenchless Business Development Manager.

Howarth will support the company’s customer base with its trenchless products, which includes Trelleborg, Quick-Lock, Sewer Robotics, MC-Ombran maintenance hole products as well as the new Hammerhead Bluelight Lateral Lining System. With over 25 years of experience in camera inspections and drain cleaning, Howarth was drawn to SECA’s role as a leading provider of trenchless solutions.

“I have a strong passion for the trenchless industry, and I believe in SECA and its products, as I’ve been a long-term customer,” he said.

“I’m looking forward to supporting many customers that I have already known for a longtime and live by the simple motto of ‘I wouldn’t sell it if I wouldn’t use it’.”

In his new role, Howarth looks forward to working with the latest technology.

Image: Rangedale

Image: SECA

Image: Pipe Core

CONSTRUCTION SPECIALISTS YOUR UNDERGROUND