HS2 will dig 64 miles of tunnels between London and the West Midlands alone.

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HS2 will dig 64 miles of tunnels between London and the West Midlands alone.

Launching HS2′ first TBM

HS2 Ltd announced the launch of the first tunnelling boring machine (TBM), the TBM Florence from HS2’s South Portal site next to the M25 in Buckinghamshire.

HS2’s tunnels will be built using different construction techniques to suit their purpose and local conditions. We’re building them under cities and the countryside to help reduce the impact on people and nature.

Green tunnels

A green tunnel, or cut-and-cover, is where a trench is excavated and roofed over, then the land on top is restored so it blends into the landscape. This technique will be used by HS2 for tunnels in Wendover, the West Midlands and Northamptonshire. The tunnel at Long Itchington wood, in Warwickshire, will be built using both green and bored techniques.

Click here for full article:https://www.hs2.org.uk/building-hs2/tunnels/

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