Project Info

Melbourne Metro Tunnel: New Rail Tunnel Reduces Congestion, Connects City

Client
Melbourne Metro Rail Authority

Location
Melbourne, Australia

Description

As the geotechnical, hydrogeological, and contaminated land Advisor to the State Government, Golder supported the development of the business case and reference design for Melbourne’s new rail tunnel beneath the city. The new tunnel will increase capacity on Melbourne’s existing rail network allowing more trains to travel more frequently across Victoria, with a less crowded and more reliable train network.

Because of the complexity of the expected ground conditions, the site investigations were phased to assist in the management of the assessed ground and groundwater risks, and increase the return on the investment made by the State. Golder then used this information to inform the ground movement, groundwater and contamination aspects of the Environment Effects Statement.

Given the scale of the project and the quantity of data collected, good data management was critical. The project team would need access to key site investigation information as it became available to guide the development of the tunnel and station designs and environmental assessment work. Golder’s data-management system maximized the value of the site investigation data collected throughout the project using GIS and document management capabilities, as well as an instrumentation module for the storage and rapid interpretation of geotechnical and groundwater monitoring data.


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