不连沟综放面护巷煤柱尺寸数值模拟研究

Study on Numerical Simulation of Chain Pillar Sizes of Fully Mechanized Working Face in Buliangou Coal Mine

针对内蒙不连沟煤矿的地质条件进行煤柱尺寸合理优化,采用FLAC软件对不连沟煤矿F6201综放面护巷煤柱尺寸进行数值模拟,通过对不同尺寸煤柱留巷巷道的垂直应力、水平应力、巷道变形和塑性破坏范围进行数值计算及比对分析,得出合理煤柱尺寸,保证工作面安全回采,同时为煤矿节省更多的资源。

For the geological conditions of Inner Mongolia Buliangou Coal Mine, coal pillar sizes are reasonably optimized, chain pillar sizes of F6201 fully mechanized working face in Buliangou Coal Mine are numerically simulated by using FLAC software, through numerically simulating and comparativly analyzing vertical stress, horizontal stress, roadway deformation and plastic failure range of different sizes of coal pillar entry retaining roadway, reasonable coal pillar sizes are gotten, working face safety mining is ensured, more resources are saved for coal mines.