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Shield Tunneler Tianhe Hao used by Nanjing Weisanlu River-Crossing Tunnel
Shield Tunneler Tianhe I and Tianhe Hao with a diameter of 14.93 meters, developed and manufactured for Nanjing Weisanlu River-Crossing Tunnel by CCCC Tianhe Machinery Manufacturing Co., Ltd. with proprietary intellectual property rights, is the largest soil-water-gas pressure-balanced compound tunneler in the world, which started drilling on the construction site of Nanjing Weisanlu River-Crossing Tunnel on July 20, 2012 and September 28, 2012 respectively. Till November 12, 2012, Tianhe I drilled 694 meters and Tianhe Hao drilled 188 meters. 

 

Tianhe Hao Waiting for Debuting 

 

Tianhe Hao after Debuting