Project: Fuzhou Metro Line F1- Daxiangshan Tunnel
Cooperation Unit: China Railway 11th Bureau Group Co., Ltd.
Introduction: Daxiangshan Tunnel is 4.53km in length and is a rare long-distance mountain tunnel for urban rail transit in China. The project traverses many geological fracture zones along the way, and the rock hardness is high, mostly 120-220 MPa superhard rock formation, which is six or seven times the hardness of ordinary concrete. It adopts a double-line layout, and two single-shield TBMs with a diameter of 8.6 meters are tunneling in the same direction.
Application Effect: With the cooperation of Litian TBM cutter, the single-shield tunnel boring machine set a new construction record of 23.4 meters in a single day, 10 rings in a single line, and 454 meters in a single month in Fuzhou rail transit. There is no abnormal damage phenomenon such as eccentric wear during the use of TBM disc cutters and soft ground cutters.
Product Supply: Provide new TBM disc cutters and broken cutters repair. 19 inch single disc cutters, 17 inch center cutters, disc cutter components, on-site cutter shop services.
Supply Time: March 2021 to Jan 2022
Completion Time: Jan. 13, 2022