The Eastern Distributor is a 6 km, two to three lane motorway linking northern, southern and eastern Sydney and providing access to Sydney Airport. The 1.7 km of tunnels running from Woolloomooloo to Surry Hills are situated beneath densely-populated urban areas.
PSM was engaged to design the temporary and permanent supports for the tunnels as well as map and monitor the tunnel excavation.
The tunnel design needed to accommodate three lanes northbound and three lanes southbound while minimising land take within a constrained space in densely populated urban surroundings.
Specific engineering and technical opportunities included:
Following a rigorous assessment and modelling, PSM’s award-winning approach included:
Successfully completed within the contracted timeframe, PSM developed an innovative design that met the scope of work’s technical and commercial challenges.
Services: #Award Winning #infrastructure #Tunnelling
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