Metro Tunnel have reached a major milestone with tunnelling starting on the North Melbourne to Kensington section of the Metro Tunnel Project.
Tunnel boring machine (TBM) Joan was the first to break ground, with Meg following shortly afterwards.
Joan, named after Victoria’s first female Premier Joan Kirner, has already travelled more than 250 metres west from North Melbourne and installed more than 140 rings to line the new tunnel.
Named after Australian women’s cricket captain Meg Lanning, Meg the TBM has progressed approximately 50 metres towards the tunnel entrance in Kensington, installing more than 20 rings that form the walls of the tunnel.
During tunnelling towards Kensington, the TBMs will pipe the excavated soil mix (slurry) back to a site in North Melbourne, while lining the tunnel with curved concrete segments.
Joan and Meg will arrive at Kensington in early 2020 before being transported back to the site in North Melbourne, where they will start tunnelling towards Parkville and the CBD.
Two other TBMs – Alice and Millie – will be launched in 2020 from the future Anzac Station in the Domain Precinct towards South Yarra.
You can learn more about our TBMs on the Metro Tunnel website.