stormwater tunnel – GeoPrac.net

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Preston tunnel project, Lancashire, UK, where TBM is stuck

Contractors battle to extract TBM after silt breaches tunnel

February 28, 2011 rockman Comments Off

A TBM is stuck on a 2.85m diameter stormwater tunnel in Lancashire, UK. The tunnel is planned to be 3.5-km long, but has been stalled since November when the silt intrusion stopped the tunnel boring […]