Engineers from HS2’s London tunnels contractor, Skanska Costain Strabag JV, have begun lifting the last of four giant tunnelling machines to the surface.
Weighing a total of 1,700 tonnes and stretching for around 150m, tunnel boring machine (TBM) Anne must be lifted out of the shaft in sections using a giant gantry crane.
The first part, including the 9.11m diameter cutterhead, was lifted out of a shaft at Green Park Way in Greenford, west London, after 16 months underground.
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