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Sydney Metro West - (CTP) Central Tunnelling Package

ABOUT THE PROJECT

Acciona Ferrovial Joint Venture (AFJV) was awarded the contract to design and construct the Sydney Metro West – Central Tunnelling Package. The contract includes the delivery of twin 11-kilometers tunnels and the excavation of five station boxes at Sydney Olympic Park, North Strathfield, Burwood North, Five Dock and The Bays.


KEY FEATURES

  • Twin 11-kilometre metro railway tunnels from The Bays to Sydney Olympic Park.
  • Excavation and civil works for five new stations at The Bays, Five Dock, Burwood North, North Strathfield and Sydney Olympic Park.
  • Two double-shield, hard rock TBMs.
  • A crossover cavern at Burwood North and one of the two precast facilities at Eastern Creek.
  • More than 70,000 concrete segments to line the twin tunnels.
  • Two access shafts at Burwood North and The Bays.
  • A TBM launch site at The Bays Station and a TBM retrieval site at Sydney Olympic Park Station.

Project

Sydney Metro West - (CTP) Central Tunnelling Package

Client

Acciona Ferrovial Joint Venture (AFJV)

Location

Sydney - NSW

Time Frame

2022 - Current

Budget

AUD $ 1.96 billion

JDK GEOTECH'S INVOLVEMENT

JDK was engaged by AFJV to provide full-time engineering services during the excavation stage of the project. JDK assisted the AFJV project management team in primarily delivering the anchoring scope and providing support to the excavation and shotcrete team.

Responsibilities included:

  • Ensuring compliance with technical specifications, applicable legislation, approvals, and standards
  • Managing the anchoring subcontractors to meet quality and program.
  • Maintain quality documentation to the client's standard.
  • Assist in cost controlling and estimating.
  • Providing input and recommendations for changes to design details
  • Working with the management team to reconcile monthly claims and develop weekly programs.


JDK was given a further scope to perform pre-construction shotcrete assessment at the locations of M4 East Substation 5 and Cintra Decline. 

Responsibilities include:

  • Engineering assessment of the extent of debonding through the use of debonding
  • Shotcrete assessment including crack mapping
  • Visual mapping survey

VALUE ADDED TO THE PROJECT

JDK interacted with teams across several disciplines and provided extensive geotechnical expertise to help manage and control tunnelling risk.

The implementation of monitoring controls was completed without any community complaints, client issues, or existing infrastructure damage. The project incorporated innovative data collection methods, which led to enhanced data quality and improved outcomes throughout the delivery process. The precise inferences of ground conditions enabled the client to allocate resources and maintain their deliverables schedule efficiently.

JDK completed all work safely, within budget, and on time while meeting the design and specifications of the contract. JDK is proud to have played a key role in developing critical infrastructure for the Sydney community.

Project Highlights

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