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介绍了袁店二矿F7大断层的发育情况,采用大型岩土三维软件FLAC3D分别对无断层岩体与有断层岩体2种情况下的巷道变形破坏规律进行了对比分析,结果表明,断层破碎区内巷道的应力卸压区范围更大,从而位移变化也较大,并根据其变形破坏规律,采用了全断面“U”型钢支护方式对巷道进行加强支护,监测结果表明,此支护方式能较好的控制断层破碎区内巷道围岩,保持了巷道围岩的稳定性。
This paper introduces the development of the F7 large fault in the No.2 ore mine of Yuandian Mine and compares the deformation and failure of the roadway in the case of no fault rock and fault rock with the large three-dimensional rock software FLAC3D. The results show that the fault crushing The range of the stress relief zone in the roadway is larger and the displacement change is also larger. According to the deformation and failure law, the roadway is reinforced and supported by full section “U ” steel support. The monitoring results show that, This support method can better control the surrounding rock in the fault broken area and maintain the stability of surrounding rock.