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People who like Robbins Single Shield completes Canada’s Largest Outfall

    Adrian Olmex

    Robbins Single Shield completes Canada’s Largest Outfall

    By Adrian Olmex in the group American Tunneler Replies (1) Last reply by Dave Anderson
      On March 3, 2022, a 7.95 m (26.1 ft) diameter Robbins Single Shield TBM completed a record-setting run below Lake Ontario. The machine, for the Southland/Astaldi JV, bored 3.5 km (2.2 mi) in sedimentary rock for the Ashbridges Bay Outfall...

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    cover tunnel photo by: Matt Brown from London, England / CC BY

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