Crossrail yesterday stopped one of its tunnel boring machines as its investigations into a hopper collapse at Westbourne Park in London continue.
Project spokesmen originally told NCE that tunnelling would be unaffected by the collapse. But it has now been decided to temporarily halt the second TBM - known as Ada - until it has further investigated the cause of hopper collapse. The hopper carrying muck away from Crossrail’s western running tunnels collapsed last Thursday.
With the TBM is mid-way through the Paddington Box, Crossrail programme director Andy Mitchell decided halt tunnelling while further investigations take place with its contractor BKF - a Bam Nuttall, Ferrovial, and Kier joint venture.
A Crossrail spokesman told NCE: “We will have a better idea of the plans by the end of the week.”
Tunnelling continues on the first TBM which is about 1km east on its journey to Farringdon.