深埋高应力围岩变形破坏三维物理模拟试验

3D Physical Model Research on the Deformation-Failure Mechanism of Rockmass under High Stress in Deep-mining

随着我国浅部资源的逐渐减少和枯竭,矿物资源地下开采的深度越来越大,深埋高应力巷道的围岩变形、破坏规律的研究显得更加重要。采用WYQ1000-I型地下工程综合模拟试验系统,通过三维物理试验模拟巷道的真实开挖、变形和破坏过程,研究有、无支护体系形态下的围岩变形,针对围岩应力以及位移变形破坏特征进行深入分析,得出深埋高应力巷道围岩变形破坏及支护作用机理。

With the decreasing of the coal resources in shallow bed, coal mining will shift to be in deep one after the other, and at the same time the research on the surround-rock＇s deformation-failure mechanism in deep-mining high stress roadway is becoming more and more important. We simulated the roadway＇s excavation , deformation and fracture characteristics by the equipment of WYQ1000-Ⅰ under two different situations： with support and without support. We proceeds thorough research on the stress and characteristics of deformation and failure, and finally have got the surround-rock＇s deformation and failure mechanism and support mechanism.