特厚煤层综放工作面区段煤柱合理宽度的微地震监测  

High-precision microseismic monitoring system to reasonable width of segment coal pillar in extra-thick coal seam fully mechanized top-coal caving mining

作　　者：孔令海[1,2] 姜福兴[1,2] 刘杰[3] 叶根喜[1,2] 王存文[1,2] 宋广东[1,2] 

机构地区：[1]北京科技大学金属矿山高效开采教育部重点实验室,北京100083 [2]北京科技大学土木与环境工程学院,北京100083 [3]大同煤矿集团有限责任公司大唐塔山煤矿,山西大同037003

出　　处：《煤炭学报》2009年第7期871-874,共4页Journal of China Coal Society

基　　金：国家自然科学基金资助项目(40674017;50774012);"十一五"国家科技支撑计划项目(2007BAK24B04)

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.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.

关 键 词：特厚煤层 综放开采 煤柱宽度 高精度微地震监测系统 矿山压力 

分 类 号：P631.4[天文地球—地质矿产勘探]