HS2 tunnelling machines reach Chalfont St Peter ventilation shaft
Two enormous Tunnel Boring Machines (TBMs) excavating HS2’s longest tunnels have completed...d. The TBMs named ‘Florence’ and ‘Cecilia’ by local schoo...HS2: First Tunnel Boring Machines arrive for the High Speed 2 Project
The TBMs to bore the 10 mile long Chiltern tunnels have arrived in the UK. Named 'Florence' and 'Ce...The names of the two TBMs were suggested by students at Meadow High Schoo...
cover tunnel photo by: Matt Brown from London, England / CC BY
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