Project Name：Guangdong Circum-Beibu Gulf Project A2 Section

Project Unit：China Railway 18th Bureau Group Tunnel Engineering Co., Ltd

Geological Condition：Mostly extremely hard rocks, dark in color, and exceptionally hard in texture. The rocks have good overall properties but are difficult to break.

Project Description：The A2 Section Project is located in western Guangdong Province, involving the construction of the Dafang water conveyance tunnel with a total length of 21.3 kilometers, including 11.531 kilometers of TBM tunneling. To cope with complex geological conditions, the project employs a combination of drill-and-blast and TBM tunneling methods. The "Yuehai Huanbei No. 1" TBM, with an excavation diameter of 9.4 meters, a total length of 160 meters, and a weight of approximately 2,000 tons, provides strong support for the rapid advancement of tunnel construction.

Cutter Solution：The Guangdong Circum-Beibu Gulf Water Resources Allocation Project involves complex geological conditions such as long-distance tunneling through hard rock and mixed soft–hard strata. The Company has established a full life-cycle management system covering cutter design, R&D, and selection for these strata.

Product Supply：19 inch single disc cutters, 17 inch twin disc cutter, TBM spare parts, on-site cutter shop services.