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Four million tons of clay moved in HS2 excavation

Four giant tunnelling machines working below west London have completed the excavation of the 8.4-mile (13.5km) Northolt tunnel between West Ruislip and a new station at Old Oak Common as part of the ...
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Huge HS2 tunnelling machine lifted out of ground after completing five-mile journey

These photos show a huge HS2 tunnelling machine being lifted out of the ground – after it completed a five-mile drive ...