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Tuesday, 23 July 2013

world's largest tunnel boring machine





the world’s largest TBM and will spend the next 14 months boring a 1.7 mile (2.7 km) tunnel under the city as part of a US$1.2 billion project to replace a viaduct damaged in a 2001 earthquake.
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1 comment:

  1. atif xhaikh17 February 2021 at 03:57

    Thank you for taking the time to publish this information very useful!
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