London Underground trains hit “bulge” in tunnel lining under River Thames

May 17, 2012 rockman Miscellaneous Comments Off on London Underground trains hit “bulge” in tunnel lining under River Thames

Grouting work done earlier in the week was a possible cause of a bulge in the lining of a train tunnel under the River Thames. Two trains hit the bulge before the line was closed, but neither train derailed. [Source: New Civil Engineer]

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June 20, 2010 rockman Project Related Comments Off on A Novel Approach at Niagara: Robbins TBM Stands Up to Challenging Ground with Custom Lining and Ground Support

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