Our giant tunnel boring machines ‘Florence’ and ‘Cecilia’ reach Little Missenden 🎉. Passing four out of five ventilation and emergency access shafts, the two TBM's are more than three quarters of the way through their 10-mile drive under the Chilterns. - #chilterns #tunnelling #tunnel #engineering #infrastructure #construction #hs2 | High Speed Two Limited (HS2 Ltd)
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Our giant tunnel boring machines ‘Florence’ and ‘Cecilia’ reach Littl…
39.1K viewsAug 10, 2023
FacebookHigh Speed Two Limited (HS2 Ltd)
This is the huge 10-mile HS2 tunnel being built that will take 200mph trains just three minutes to pass through. Sonic booms can be caused by high-speed trains forcing air forwards when they enter a tunnel - but this has been designed with special measures in place to prevent it. The huge structure heads under the Chiltern Hills and took almost three years to bore through the land. It's on the route to Birmingham - and in June 2024, HS2 Ltd assessed the cost for the line to be up to £66 billion.
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This is the huge 10-mile HS2 tunnel being built that will take 200mph tr…
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FacebookManchester Evening News
HS2's longest tunnel is now complete – a significant milestone for Britain's new high-speed railway. ✔️ Final works at the tunnel's vent shafts at Chesham Road and Little Missenden bring to an end almost five years of construction beneath the Chilterns. Once tracks and overhead electrical equipment are installed, trains will travel through the 10-mile tunnel at 200mph – crossing it in just three minutes. 🚄 Watch the story of the Chiltern Tunnel here 👉 https://ow.ly/PRJ750Y17lz | High Speed Two
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HS2's longest tunnel is now complete – a significant mileston…
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FacebookHigh Speed Two Limited (HS2 Ltd)
Machine digging HS2’s longest tunnel breaks through
Machine digging HS2’s longest tunnel breaks through
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inverness-courier.co.uk
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