最大直径竖井掘进机“启明号”掘进速度创纪录

Group 1 - The "Qiming" tunneling machine, the world's largest diameter vertical shaft tunneling machine, achieved a record-breaking excavation speed and completed its task of digging 56.08 meters in January 2023 [1][2] - The Chongtai Yangtze River Tunnel, where the "Qiming" machine was utilized, is 14.25 kilometers long and features three vertical shafts, with the second shaft located only 200 meters from the southern bank of the Yangtze River, presenting significant construction challenges and safety risks [1] - The "Qiming" machine has a diameter of 24 meters and employs intelligent tunneling and lining assembly with "manned supervision and unmanned operation," enhancing construction efficiency and quality [1] Group 2 - The successful completion of the "Qiming" tunneling task signifies a major breakthrough in China's mechanized and intelligent construction of large-diameter, ultra-deep vertical shafts [2] - The technology and processes developed through this project will provide a reliable "Chinese solution" for future deep underground space development and major infrastructure construction [2]