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针对现阶段超出设计使用寿命的巷道安全稳定性难以确定的问题,分析了久置矿山巷道可能出现的灾害及其形成机理,总结了各种巷道灾害的现场检测方法,并以柠条塔煤矿S1210工作面巷道为例,说明了采用层次分析法评价巷道稳定性的一般程序。在此基础上给出了巷道维护加固的方法,并采用数值模拟分析验证了治理方案的有效性。
Aiming at the problem that the safety and stability of the roadway beyond the design service life at present is difficult to determine, the possible disasters and formation mechanism of the roadway in Jiuzhi mine are analyzed. The on-site detection methods of various roadway hazards are summarized. As an example, it shows the general procedure of using AHP to evaluate the stability of roadway. On this basis, the method of roadway maintenance and reinforcement is given, and the effectiveness of the treatment plan is verified by numerical simulation.