过断层巷道围岩失稳破坏机理及控制技术研究OA

Aiming at the problem of large deformation of peripheral rock in the roadway over the fault zone,difficult to control the failure of support,and unable to ensure the overall stability of the roadway,taking the roadway over the fault zone of Xinjing Company of Huayang Corporation as the engineering background,the destabilization and destruction mechanism of the roadway was analyzed according to the geological characteristics of the fault zone,and the all-anchor support technology was put forward,and verified by numerical simulation.The results of on-site engineering practice showed that under the optimized support scheme,the top and bottom plates of the roadway peripheral rock were shifted by 98 mm,the convergence of the two gangs was 85 mm,and the bottom bulge was 42 mm,and the deformation of the roadway peripheral rock was effectively controlled,which ensured the normal and safe production of the mine.