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以徐州矿务集团旗山矿深埋巷道为研究背景,运用FLAC3D软件,建立了层理倾角为90°的急倾斜巷道围岩模型,模拟了500 m埋深条件下巷道围岩水平应力演变特征。同时,在巷道围岩右帮设置监测点,监测围岩水平应力的分布情况,并将应力监测曲线与圆形孔周围应力分布理论曲线(解析解)进行对比分析,分析结果显示数值模拟结果和理论解析结果一致。
Taking the deep buried roadway of Qishan Mine of Xuzhou Mining Group as the research background, the rock slope model with steep inclination of 90 ° was established by using FLAC3D software to simulate the horizontal stress evolution of surrounding rock under the condition of 500 m buried depth . At the same time, monitoring points are set up on the right side of the surrounding rock of the roadway to monitor the horizontal stress distribution of the surrounding rock. The stress monitoring curve and the theoretical curve (analytical solution) of the stress distribution around the circular hole are compared and analyzed. The results show that the numerical simulation results The results of theoretical analysis are consistent.