NSW, sydney metro, TBM, tunnelling, Western Sydney Airport,
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Tunnel boring machine (TBM) Eileen completes tunnelling, marking the first tunnel breakthrough for the Sydney Metro – Western Sydney Airport project.
Mega tunnel boring machine (TBM) Eileen has crushed through a wall of rock to arrive at the Airport Terminal metro station site, marking the first tunnel breakthrough for the city-shaping Sydney Metro – Western Sydney Airport project.
Since launching at Airport Business Park in April 2023, Eileen has worked around the clock to excavate around 112,000 tonnes of rock – enough to fill about 18 Olympic swimming pools.
The 1,066-tonne mega machine has tunnelled at an average speed of 120 metres per week to build 1.26 kilometres of fully lined tunnel, which completes the first leg of its 5.5-kilometre journey towards the Aerotropolis.
It took about five months to dig out about 293,000 tonnes of rock (about 48 Olympic swimming pools) to build the 25-metre-deep Airport Terminal Station box to prepare for TBM Eileen’s arrival.
The huge machine will now traverse the station box before being relaunched to tunnel under the future Western Sydney International Airport, with the TBM expected to arrive at the Aerotropolis metro station site in 2024.
A total of four TBMs will build the twin metro tunnels for the Sydney Metro – Western Sydney Airport line, with three TBMs already in the ground.
The Sydney Metro – Western Sydney Airport line will be operational when Western Sydney International Airport opens for passenger services.
Click here to find out more information about the project.
Source: © Sydney Metro 2023
Image source: © Sydney Metro 2023
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