IMIESA July 2021

Page 35

TRENCHLESS TECHNOLOGY

Trenchless techniques are optimal for urban zones Horizontal directional drills are fast becoming a mainstay for larger-scale trenchless applications, where machines like the powerful Ditch Witch JT 10 are being used to drill under obstacles

T

renchless technologies represent among the safest and easiest means of installing utilities such as water, electricity and data infrastructure in urban areas. This is especially the case where blueprints are inaccurate, in sensitive areas, or where high volumes of surface traffic are encountered. Keith Smith, national sales manager: Ditch Witch, ELB Equipment, says his company has the technical expertise to assist municipalities and contractors to find viable trenchless solutions for most infrastructure delivery headaches. “Commonly purchased equipment includes our range of HammerHead piercing tools – or moles, as they are referred to in the industry – which are used in fibre installations and increasingly to minimise disruptions in the installation of electricity and water infrastructure,” he explains. These tools are mainly used under roads, driveways and other obstacles, and range from 50 mm to 145 mm in diameter. Smith says models with reciprocating heads and no moving parts are becoming the tools of

HammerHead piercing tools are commonly used in fibre installations and are increasingly being used to minimise disruptions in the installation of electricity and water infrastructure

choice due to their efficiency and reliability. He adds that ageing water and sewerage infrastructure has also given rise to the popularity of pipe-bursting equipment. The HammerHead range is employed to burst ageing pipes and pull new HDPE piping in behind it. With the addition of specific fittings, the HammerHead range is easily able to deal with steel, clay, concrete, asbestos and other pipe types. Both static and pneumatic models are available and depend on individual contractor requirements.

Precise work “Similarly, among larger contractors, horizontal directional drills are fast becoming a mainstay for larger-scale applications, where drills like our powerful Ditch Witch JT 10 and 20 are being used to drill

under obstacles – whether it be a large road, building, dam or river. The ability to guide the drilling head around other buried infrastructure is also invaluable,” Smith adds. Ground-penetrating radar and locators from Subsite Electronics, as well as other equipment to assist trenchless contractors, are also available from ELB Equipment.

IMIESA July 2021

33


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Admixture accelerators for cold conditions

2min
page 57

Turning concrete waste into a resource

2min
page 54

The FUSO FJ26-280C HYP receives a stamp of approval

6min
pages 50-51

A variety of solutions for driver management

2min
page 53

Lifting with a difference

4min
pages 48-49

Local knowledge key to success of cross border projects

6min
pages 44-45

Affordable technology that builds brick businesses

4min
pages 46-47

Infrastructure news from around the continent

4min
pages 42-43

Inclusionary housing: addressing the elephants in the room

3min
page 40

Youth participation in the social housing value chain

2min
page 41

University switches to green energy

1min
page 39

Working towards a just energy transition

2min
page 38

Substation upgrade for new data centre

2min
page 37

Trenchless techniques are optimal for urban zones

1min
page 35

Energy efficiency starts with consumption

2min
page 36

Riverbank training and protection

4min
pages 28-29

Whistleblowing hotlines for municipalities

5min
pages 30-31

Unpacking barriers for women in construction

4min
pages 32-33

Geogrids in civil engineering applications

5min
pages 26-27

Empowerment through quality, education and training

6min
pages 24-25

uMshwathi Regional Bulk Water Supply Scheme Phase 2

5min
pages 22-23

Asset maintenance is a lifelong journey

4min
pages 18-19

The BUILD programme makes every project count

6min
pages 12-13

The future of surveying

6min
pages 14-16

Editor’s comment

4min
pages 5-6

Repairing concrete with concrete in sewer systems

8min
pages 8-11

The durability of steel for bulk water delivery

4min
pages 20-21

Establishing a new docking site for MSC

3min
page 17

President’s comment

2min
page 7
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