急倾斜巷道围岩500m埋深水平应力数值模拟分析

Numerical Simulation Analysis of Horizontal Stress in Steeply Inclined Roadway Surrounding Rock under 500 m

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。

Take Xuzhou mining group Qishan mine deep tunnel as the research background, FLAC3D software to simulate the inclined roadway surrounding rock steep bedding dip angle using is 90 degrees, and establish 500 m depth analysis process. At the same time, the monitoring points are set up in the surrounding rock of the tunnel, the horizontal stress distribution of surrounding rock in monitored, and the stress monitoring curve is compared with the theoretical curve of stress distribution around the circular hole. The analysis results show that the numerical simulation results are consistent with the theoretical analysis results.