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Sydney Metro - Central Station Platform Excavation

ENGINEERING AND TECHNICAL OPPORTUNITIES

New Sydney Metro platforms are currently being delivered by Laing O'Rourke under Central Station as well as the landmark Central Walk - a new underground pedestrian concourse to help customers get around Sydney's busiest railway station. Major construction work is currently underway to deliver the biggest upgrade to Central Station in decades. The renewal of Central Station is designed to cater for growing passenger numbers and improve accessibility. Excavation and construction of the new underground metro box and the retrofitting of Platforms at Central Station beneath Platforms 13 and 23. As part of the biggest upgrade to Sydney’s busiest railway station in decades, two new underground metro platforms are being built as well as the landmark Central Walk underground concourse, which will make it easier for customers to connect between light rail, suburban and inter-city trains, the new Sydney Metro and buses.


Project

Sydney Metro - Central Station Platform Excavation

Client

Laing O'Rourke

Location

Sydney NSW

Time Frame

2019 - 2020

Project Highlights

APPROACH AND INNOVATION

JDK Geotech was engaged by the Laing O'Rouke to undertake geotechnical investigation work above the new Central Walk. The project is being constructed using a 'top down' construction methodology and involves excavation down to the new metro tunnels 27m below ground level. After the removal of platforms 13, 14 and 15 at the beginning of the project, our team built the new intercity platforms which are being used as a traffic deck during the construction of the permanent structure.

VALUE ADDED TO THE PROJECT

JDK was able to deliver the scope of work without damage to sensitive surface rail infrastructure or disruption to the rail network. The implementation of systematic geotechnical data capture through industry-best technology initiated through JDK's experience on similar infrastructure projects, aided in a streamlined information transfer to the principal contractor to fulfil the requirements of the design.