关键词: 过断层, 围岩控制, 联合支护, 支护方案, 数值模拟

Abstract: Aiming at the problem of large deformation and difficult support of roadway caused by faults in driving face.By means of theoretical analysis, numerical simulation and field test, the deformation mechanism and control technology of surrounding rock passing through fault in heading face are studied.The stress environment of normal fault is analyzed theoretically.The stress and displacement of the fault passing roadway and normal roadway under different support schemes are simulated.Finally, the support scheme for the fault crossing of the heading face is given and applied to the engineering practice of Bu Ertai Mine.The "anchor + anchor cable + angle anchor" support scheme is used to strengthen the support strength and the addition of angle anchors can effectively control the surrounding rocks of the fault-excavation working face.