全链首台“四川造”高端装备盾构机成功下线

Group 1 - The "Chuan Shan Jia No. 1" shield machine, the first fully "Sichuan-made" shield machine, has successfully rolled off the production line in Chengdu, designed for extreme low-temperature conditions and will be exported to Europe [1] - The shield machine features a diameter of 3.72 meters, a length of 135 meters, a weight of 350 tons, and a maximum excavation speed of 80 millimeters per minute, specifically designed for construction in permafrost layers [1] - The machine's cutter head uses a 15.5-inch rolling cutter with a design that prevents mud cake formation, ensuring efficient excavation in extreme cold [1] Group 2 - China Railway High-tech Intelligent Equipment Co., Ltd. was established in September 2023, aiming to create the first intelligent assembly line for full-section tunnel boring machines in Southwest China, with an initial investment of 1 billion yuan [2] - The manufacturing base is expected to produce 14 shield machines, 50 sets of tunnel construction equipment, and 50,000 tons of steel structures annually, generating an estimated annual output value of 1.8 billion yuan and creating over 1,000 jobs [2] - The company plans to expand its overseas market for "Sichuan-made" shield machines while providing key technical support for tunnel construction in regions such as western Sichuan, Tibet, and Northeast China [2]