【摘要】 采用高精度微地震监测系统对塔山煤矿采高15 m以上特厚煤层综放工作面岩层运动进行了监测,将监测结果与岩石力学计算和岩层运动分析相结合进行分析,得到了区段煤柱支承压力高峰区距离巷帮的距离.将微地震监测与数值计算的结果进行对比,二者基本一致,证明了微地震监测结果的正确性和可靠性.综合考虑多种因素,确定区段煤柱的合理宽度为20~25 m.更多还原

【Abstract】 By using the underground high-precision microseismic monitoring system,studied the strata movement in full-seam mining over 15 m thick in fully mechanized top-coal caving mining workface.Distance was obtained between high stress zone and the entry rib by combining rock mechanics calculating with strata movement consequence analysis.By comparing with numerical simulation results,the inferred result by MS was proved right.Result shows the reasonable width of segment coal pillar is 20～25 m,considering many factors.更多还原