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Tunnel boring machines under construction

Some of the largest tunnel boring machines (TBMs) in the world are on track to arrive in Melbourne on time in early 2019 to build the Metro Tunnel and the West Gate Tunnel.

The Premier has visited Herrenknecht‘s tunnel boring machine manufacturing site in Nansha, China, to see first-hand the massive machines being built before they are shipped to Melbourne.

The custom-built TBMs will operate like moving underground factories, using their giant cutting heads to burrow through Melbourne’s soil and rock while progressively installing a watertight concrete lining behind them to create the new tunnels.

After taking 12 months to build and test, the massive machines will churn day and night for the next 2 to 3 years, building the Metro and West Gate Tunnels.

The local community will have the opportunity to name the TBMs and follow their progress deep under Melbourne over the coming years.

Metro Tunnel