Super-large-diameter shield tunnel project in Nanjing is won CCCC with total investment of RMB 910 million

Source:Tunnel EngineeringTime:2018-04-03

Recently Tunnel Engineering has won the bid for the right tunnel project in the south section of Heyan Road Cross-River Channel in Nanjing, with a total investment of RMB 910 million and a construction period of 46 months. Using a compound slurry balanced shield machine with an excavation diameter of 15.02 meters, the project is another super-large-diameter shield tunnel project undertaken by CCCC after Yangtze River Tunnel. It is also China's first super-large-diameter cross-river tunnel through the fault and karst stratum.

Located between Nanjing Yangtze River Bridge and Second Nanjing Yangtze River Bridge, with a full length of some 17 kilometers, Heyan Road Cross-River Channel will be designed in accordance with the standards of two-way six-lane city expressways, and divided into the south section and the north section by Puyi Interchange. The south section started first has a total length of some 5.7 kilometers; and the right tunnel constructed by the company has a full length of 2,976 meters, an outer diameter of 14.5 meters and an inner diameter of 13.3 meters.