针对焦煤中马村矿23巷道在动压影响下进行扩修的问题,采用FLAC3D对此进行数值模拟研究,通过对未扩修巷道和扩修巷道的应力分析,得出扩修巷道应力等方面的不对称性,采用锚杆加锚索,在表层进行喷射混凝土的联合支护并在关键部位进行加强支护的方式,并通过悬吊理论设计的支护参数,很好地控制巷道围岩的稳定性。 Aiming at the problem that the coal mine roadway 23 is expanded under the influence of dynamic pressure, the numerical simulation study is carried out by using FLAC3D. The stress of the roadway without expansion and the roadway expansion are obtained, and the stress of the roadway is obtained Of the asymmetry, the use of bolt and anchor, shotcrete in the surface of the joint support and strengthening of the key parts of the way to support, and through the suspension design of the theoretical support parameters to well control the surrounding rock roadway Stability.