断裂影响下的巷道变形规律研究

Research on Deformation Law of Roadway Affected by Fractured Structures

为了研究断裂构造对巷道变形的影响规律,以任家庄煤矿为例,根据该矿11503回采工作面前方的断裂构造特征,监测采动过程中断层两侧煤层顶底板移近量、巷道两帮收敛量等相关参数变化,结合现场地质条件,利用FLAC3D软件,数值模拟分析了在工作面前方不同距离段的应力、位移变化规律,探讨了断裂构造对采区的应力场、位移场的影响规律。

In order to study the influence laws of the fractured structures on the roadway deformation, monitoring wascarried out on the change of relevant parameters such as the roof - to - floor convergence on two sides of the fault and theconvergence of the roadway sides in the mining process by taking Renjiazhuang Mine as an example and according to the featuresof the fractured structures in front of 11503 working face in this mine. Numerical simulation and analysis were made on thechange laws of the stress and displacement in different distance sections in front of the working face according to the minegeologic conditions and by using FLAC3D software, and finally, discussion was conducted on the influence laws of the fracturedstructures on the stress and displacement fields in the mining district.