停采线对下山巷道围岩破坏的研究与实践

Study on Stop-mining Line Damage to Surrounding Rock of Downhill Roadway and Practice

为了研究停采位置对下山巷道围岩形变的影响,以某矿4#煤层为研究背景,运用Flac3D模拟不同停采位置时围岩垂直应力分布和位移矢量分布,从而确定最佳停采位置,并进行了现场测试。实测结果与模拟数据基本吻合,为类似条件下的停采位置确定提供了借鉴。

To study the effect of the stop position on the surrounding rock deformation in the downhill roadway, taking the No.4 coal seam of a mine as the engineering background, used Flac3 D to simulate the vertical stress distribution and displacement vector distribution at different stop positions, thus determined the optimal stop position and carried out the field test. The practice testing result basically agrees with the simulation data and provides references to the determination of the stop position under similar conditions.