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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Video: Simulation View of Washington SR 99 Bored Tunnel (Alaskan Way Viaduct Replacement)

March 24, 2010 rockman Project Related Comments Off on Video: Simulation View of Washington SR 99 Bored Tunnel (Alaskan Way Viaduct Replacement)

A nifty BIM-type view of the proposed bored tunnel for Washington SR 99, the tunnel to replace the aging Alaskan Way Viaduct along Seattle’s waterfront. It’s pretty neat to see the piles and foundations for […]