All northolt tunnel Articles

Video: HS2 lifts TBM Sushila via gantry crane after completing 5-mile journey
The machine is said to have excavated over 1.2 million tonnes of earth and installed 4,217 tunnel rings
HS2’s Northolt Tunnel reaches halfway point
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The four tunnel boring machines excavating the Northolt Tunnel have excavated exactly half the project’s total distance.
UK’s HS2 hits construction milestones
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Joint venture teams tackle significant engineering challenges on giant rail network