Client

CPB Contractors, John Holland, Lend Lease Engineering & Bouygues Construction Australia

Location

Sydney Metro

Project Type

Road tunnels

Geology

Hawkesbury sandstone

Project Overview

Specialist Tunnel Excavation successfully introduced both surface mining and utility trench excavation with tracked trenchers into Sydney’s major tunnel projects. The application has become the chosen method for a number of the current major projects.

Through a number of trials and surface projects over four years, the first machines were mobilised to M4 westconnex in 2017 and continued through to the new M5 and most recently M4-M5 link tunnel, where we were engaged to excavate the decline ramp at approximately halfway along the route.

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