HS2 lifts Tunnel Boring Machine (TBM) ‘Emily’ from below ground at the Green Park Way site in Greenford, West London
On Saturday 26th July, the team working on the HS2 project lifted the TBM's 9.11metre diameter cutterhead, front and middle shield, weighing 880 tonnes, using a large gantry crane. The tunnelling machine concluded its 3.4-mile journey from Victoria Road in Ealing in June, arriving in an underground reception chamber. TBM Emily excavated 775,000 tonnes of London Clay and installed 17,514 concrete tunnel segments.