| 深井巷道过断层群期间微震规律分析 |
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| 引用本文： | 张明伟,窦林名,王占成,曹安业,徐学峰.深井巷道过断层群期间微震规律分析[J].煤炭科学技术,2010,38(5). |
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| 作者姓名： | 张明伟 窦林名 王占成 曹安业 徐学峰 |
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| 作者单位： | 1. 中国矿业大学,煤炭资源与安全开采国家重点实验室,江苏,徐州,221008
2. 山东省天安矿业公司,星村煤矿,山东,曲阜,273100 |
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| 基金项目： | 国家自然科学基金资助项目，"十一五"国家科技支撑计划资助项目，国家重点基础研究发展计划(973计划)资助项目 |
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| 摘 要： | 为更有效地预防深部矿井掘进工作面过断层群期间冲击矿压事故的发生,采用微震监测系统对断层群区域煤岩体内微震活动进行了全时段监测。基于微震活动在能量释放与震动频次方面的变化特征,分析了断块活动聚集能量对冲击矿压的诱发影响,以及断层群区域人为采掘扰动影响下的微震活动变化规律。结果表明:断层群构造区域微震活动具有较高的不稳定性,随着掘进工作面逐渐临近,区域内每日震动释放总能量值起伏波动逐渐增大,最大能量值呈现快速攀升趋势;强烈微震活动发生前有一段弱震活动时期,弱震活动为强震再次发生起到蓄能作用。
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| 关 键 词： | 深部煤巷 断层群 微震活动 微震监测系统 减冲解危 |
Analysis on Microseismic Law When Deep Mine Roadway Heading Passed Through Fault Group |
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| ZHANG Ming-Wei,DOU Lin-Ming,WANG Zhan-Cheng,CAO An-ye,XU Xue-feng.Analysis on Microseismic Law When Deep Mine Roadway Heading Passed Through Fault Group[J].Coal Science and Technology,2010,38(5). |
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| Authors: | ZHANG Ming-Wei DOU Lin-Ming WANG Zhan-Cheng CAO An-ye XU Xue-feng |
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| Affiliation: | ZHANG Ming-Wei1,DOU Lin-Ming1,WANG Zhan-Cheng2,CAO An-ye1,XU Xue-feng1(1.State Key Lab of Coal Resources and Safety Mining,China University of Mining and Technology,Xuzhou 221008,China,2.Xingcun Mine,Shandong Provincial Tian'an Coal Mining Company,Qufu 273100,China) |
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| Abstract: | In order to effectively prevent the pressure bumping accidence occurred when a deep mine roadway heading face passed through fault group,the microseism monitoring and measuring system was applied to the full time monitoring and measuring on the microseismic activities in the coal and rock mass of the fault group area.Based on the variation features of the energy releasing and vibration frequency in the microseismic activities,the paper analyzed active accumulated energy of the fault block affected to the pr... |
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| Keywords: | deep mine seam gateway fault group microseismic activity microseism monitoring and measuring system pressure pumping reduced and danger released |
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