关键词: 深埋长距离巷道, 岩巷掘进, 盾构法施工, 一次成巷

Abstract: In view of the problems of unbalance of excavation-anchor and low efficiency of roadway formation in coal mine, by means of theoretical analysis, simulation and field test, the adaptability of shield tunneling and matching of construction system of full-section hard rock machine in coal mine are analyzed. Four aspects of problems affecting the construction efficiency of shield tunneling in vertical coal mine are proposed. It includes shield machine access to vertical shaft, equipment rapid assembly and transportation technology, shield machine trajectory control and rapid support. Combined with the existing conditions of the mine, the shield equipment assembly and disassembly platform of the underground large chamber was designed, the construction technology and labor organization management were optimized, and the shield construction technology system with multi-process coordination and unity of digging, supporting, assembling, transferring, transporting and spraying was formed. The research results were applied for the first time in rock roadway of Yangquan high gas vertical shaft coal mine, which realized the highest monthly and daily footage of rock roadway 608m and 31.5m, and created the level of rock roadway forming 3490m in a single tunneling and a single tunnel forming, improved the efficiency of rock roadway forming, shortened the mine preparation period, and achieved significant technical and economic benefits.