软岩巷道围岩损伤破坏范围的地震探测研究

Principle and Method of Detecting Fractured Zones of Soft Rock Roadway by Seismic Technology

针对软岩巷道难支护的主要原因是对巷道工程地质条件和围岩结构认识不清、支护对象不明确的问题 ,论述了应用地震技术探测软岩巷道损伤破坏范围的可行性 .以显德汪矿主运输大巷为试验研究对象 ,利用地震技术对巷道进行了全断面探测 ,实现了软弱结构面的空间定位和围岩结构的精确探测 。

One of the main reasons for the difficult support in soft rock roadway is that the engineering conditions and the structures of surrounding rock are indefinite and the supported object is uncertain. Aiming at this problem, the feasibility of detecting fractured zones of weak roadway by seismic exploration was discussed. By taking the main haulage roadway of Xiandewang Coal Mine as an example, the structures of surrounding rock were fully detected. An accurate result of stability of soft rock mass has been achieved, providing a direct geological basis for the determination of support forms and parameters of a road-way.