A second tunnel boring machine (TBM) has completed a 5-mile excavation of Northolt Tunnel for HS2.
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Third HS2 tunnelling machine completes its drive beneath London
HS2’s tunnelling team in London is one step closer to completing the capital’s Northolt Tunnel after the latest in a series of complex tunnelling breakthroughs. The tunnel boring machine (TBM), named Emily, completed its 3.4-mile drive at Green Park Way in Greenford, west London – the third of four machines to complete its work on […]