Karangahape Station CLG Presentation 26 May 2020
CLG Agenda 5:00 Welcome, Simon Mitchell (Community Manager) 5:05 Project overview, Jonathan Hill (Station Manager) 5:10 Presentations • Mercury Lane overview, Melissa Lu (Site Engineer) • Tunnels, Cam Butcher (Construction Manager, mined tunnels) • Sustainability, Jenny Spence (Sustainability Advisor) • Beresford Square overview, Manu De Silva (Project Engineer) • Development Response, Arash Barzin (Development Response Manager)
6:00 Questions & answers, Simon Mitchell
Project Overview Jonathan Hill Station Manager
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6/09/2021
Beresford Square
Mercury Lane
Mercury Lane May 2020 – September 2020 • Noise enclosure construction (purple) • Installation of diaphragm walls (green), the station’s external walls.
Beresford Square July 2020 – August 2020 • Installation of plunge columns, providing temporary support for floors and super structure.
Mercury Lane September 2020 – October 2020 • Installation of plunge columns, providing temporary support for floors and super structure • Mined tunnels started.
Beresford Square August 2020 – January 2021 • Installation of diaphragm walls (green), the station’s external walls.
Mercury Lane October 2020 – December 2021 • Excavation and construction of station floor and rock beneath.
Beresford Square January 2021 – January 2022 • Excavation and construction of station floor and rock beneath.
Mercury Lane January 2022 – March 2023 • • • •
Bottom up construction of lower floors Completion of floor columns and walls for station structure Above ground structure Start to station fit-out.
6/09/2021
Beresford Square January 2022 – March 2023 • Bottom up floor construction • Completion of floor columns and walls for station structure • Start to station fit-out.
Mercury Lane March 2023 – 2024 • Noise enclosure and temporary shaft removal • Station fit-out complete • Urban realm complete.
6/09/2021
Beresford Square March 2023 – 2024 • Station fit-out complete • Urban realm complete.
Mercury Lane Overview Melissa Lu Site Engineer
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Mercury Lane January
March
February
May
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Mercury Lane
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Mercury Lane Mechanically Stabilised Earthworks
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Mercury Lane
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Mercury Lane
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Mercury Lane Bentonite plant
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Tunnels Cam Butcher Construction Manager, Mined Tunnels
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Mined Tunnels
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A5 (AD2)
A3 (AD1)
A4 (AD3)
A2 (AD1)
A1 (AD2)
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MC20
MC30
Current Adit A1 profile (Stage A)
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Cut vertical sump in centre of face. Move machine forward to minimum boom extension.
Vertical sump
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Sustainability Jenny Spence Sustainability Advisor
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Sustainability objective
To set the benchmark for designing, building and operating sustainable infrastructure in New Zealand. Sustainability, Environmental and Kaitiakitanga: to optimise the footprint of the CRL during construction and over the Project's operational life, achieving an "Excellent" IS rating and delivering
positive and enduring socio-economic outcomes for the people of Auckland through quality training, employment and development opportunities for targeted new entrants.
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Infrastructure Sustainably
• ‘Excellent’ As-built rating for whole project
Infrastructure Sustainability Council of Australia
• New Zealand pilot – CRL version: • NZ criteria • incorporates Mana Whenua cultural values
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Why IS?
• Stretches us to strive for higher performance
Infrastructure Sustainability Council of Australia
• Independent verification • Ensuring desired outcomes are achieved
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Minimum requirements
• Energy: 25% reduction in construction and operation phase greenhouse gas emissions compared to base case • Materials: 15% reduction in lifecycle impact
• Water use: 5% reduction over construction and operation • Water discharges: Engagement with Mana Whenua, no increase in peak stormwater flows, improvement of receiving water environmental values.
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Minimum requirements •
Waste Targets for diversion from landfill: • 100% clean spoil • 90% C&D • 60% office Waste Resource Action Programme (WRAP) i. design for reuse and recovery; ii. design for off-site construction; iii. design for materials optimisation; iv. design for waste efficient procurement; and v. design for deconstruction and flexibility.
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How are we going to achieve this?
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Eliminating temporary works wherever possible
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Concrete mix designs
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Efficient electrical equipment
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Maximise use of grid power
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Efficient water fittings and water reuse
Steel re-use savings
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Beresford Square Overview Manu De Silva Project Engineer, Beresford Square
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Guide wall and D-Wall Methodology • Road closure • Excavation for base of guidewall • Guidewall steel and concrete
• Crane, Hydrofraise and other plant setup.
• Grab crane excavate inside guidewall and muckaway
• Hydrofraise begin Dwall inside guidewall: • Excavate and Bentonite infill
• Steel cages installed • Concrete poured
• Repeat for next traffic stage. 39
Guide wall and D-Walls Traffic Staging
• • •
Three key stages that will repeat between Guidewall construction, to Dwall construction to Slab construction. Each stage will last at least a month, as above will repeat for GW, DW and Slab construction. Access to private vehicle entrances will be maintained throughout durations.
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Plunged Columns Traffic Management • Six columns in total. • Installed sequentially within the road closure.
• Approximate duration 3 – 4 weeks, followed by D-Wall construction.
• Access to private vehicle entrances will be maintained throughout duration.
Plunged Columns Methodology • •
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Six columns in total. Installed sequentially within the road closure. Approximate duration 3 – 4 weeks, followed by D-Wall construction. Access to private vehicle entrances will be maintained throughout duration.
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Development & Response Arash Barzin Development Response Manager
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Indicative Beresford Square layout (still under development)
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CRL Link Alliance – Information Points
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Beresford Square – Perspex hoarding
Image under development
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Beresford Square / Hopetoun - Auckland Photography Festival 2020
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Indicative Mercury Lane hoarding layout (still under development)
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Mercury Lane – CRL Link Alliance branded hoarding
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Cross Street – local mural artist
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Canada Street - local mural artist (concept #1)
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Canada Street - local mural artist (concept #2)
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Canada Street - local mural artist (concept #3)
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Canada Street - local mural artist (concept #4)
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Canada Street - local mural artist (concept #5)
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East street hoarding collaboration with TAUTAI artists
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Questions & Answers
Thank you
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