Tag: TBMs
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Video | HS2’s TBM Anne lifted to the surface in west London
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…
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In pictures | HS2 lifts 880t tunnel boring machine after 5km journey
Photos released by HS2 show how contractors lifted a giant tunnel boring machine (TBM) using a gantry on Saturday (26 July) following the completion of its 5.5km journey across west London. The TBM was lifted using a gantry crane (Image: HS2) The 880-tonne TBM with a 9.11m diameter cutterhead excavated 775,000 tonnes of London Clay…