走近大国重器 | 向深大竖井进军探访世界最大直径竖井掘进机“启明号”

Group 1 - The core message emphasizes the importance of technological empowerment in modern manufacturing and the need for independent innovation in development [1] - The "Qiming" machine, developed by China Railway Engineering Equipment Group and China Railway Tunnel Group, is the world's largest diameter vertical shaft tunneling machine, with a maximum excavation diameter of 24 meters and a maximum excavation depth of 150 meters [2][5] - The "Qiming" machine is designed to improve safety and efficiency in deep excavation projects, addressing traditional tunneling methods' limitations [6][8] Group 2 - The "Qiming" machine's development involved overcoming significant technical challenges, including pressure differentials and sealing reliability, to ensure safe and efficient operation in complex underground environments [19] - The project team focused on creating a machine that allows for "human supervision, unmanned operation," significantly reducing safety risks and improving construction efficiency by three times compared to traditional methods [9][8] - The development of the "Qiming" machine reflects a commitment to continuous improvement and innovation, with a focus on practical application and reliability in real-world scenarios [10][12][18] Group 3 - The project is part of China's broader strategy to enhance domestic manufacturing capabilities and fill technological gaps in the tunneling equipment sector [17][19] - The "Qiming" machine's design incorporates advanced features such as dual-arm structures for simultaneous operations, which enhances construction continuity and stability during large-scale excavation [8][11] - The project team has drawn on practical experiences from previous projects to refine the design and functionality of the "Qiming" machine, ensuring it meets high standards of performance and safety [14][15]