向斜轴部附近微震活动规律及对冲击矿压的影响

金属矿山 ›› 2013, Vol. 42 ›› Issue (05): 144-147+163.

向斜轴部附近微震活动规律及对冲击矿压的影响

谢群^1,2，窦林名^1,2，李宁^1,2，张军伟^1,2，谢龙^1,2，谢连银³

1.煤炭资源与安全开采国家重点实验室；2.中国矿业大学矿业工程学院；3．上海大屯能源股份有限孔庄煤矿

出版日期:2013-05-15 发布日期:2013-06-08
基金资助:
* 国家重点基础研究发展规划（973计划）项目（编号：2010CB226805），“十二五”国家科技支撑计划项目（编号：2012BAK09B01），煤炭资源与安全开采国家重点实验室自主研究课题(编号：SKLCRSM10X05)。

Micro-seismic Activity Law Near the Synclinal Axis and its Impact

Xie Qun^1,2，Dou Linming^1,2，Li Ning^1,2，Zhang Junwei^1,2，Xie Long^1,2，Xie Lianyin³

1.State Key Laboratory of Coal Resources and Mine Safety；2.School of Mines，China University of Mining & Technology；3.Kongzhang Colliery，Shanghai Datun Energy Resources Co.，Ltd.

Online:2013-05-15 Published:2013-06-08

摘要/Abstract

摘要： 根据波兰SOS微震监测系统所得到的微震数据，结合砚北煤矿250204工作面的实际情况，具体分析了向斜轴部附近的震源演化规律，得出结论：工作面回采期间，当工作面处于向斜轴部时，震源主要分布在煤层上侧，即微震事件主要发生在顶板附近；当回采工作面逐渐远离向斜轴部时，震源分布有向煤体下侧转移的趋势，即微震事件主要发生在底板附近。当向斜轴部和工作面见方2因素相叠加时，发生冲击的可能性明显增大。同时总结了向斜构造发生冲击矿压的能量频次规律，对生产实践起到重要作用。

关键词: 向斜轴部, 微震活动, 冲击矿压, 震源演化, 能量频次

Abstract: According to the data of Poland SOS microseismic monitoring system，the seismic source evolution law near the synclinal axis is analyzed combining with the actual conditions of 250204 working face in Yanbei. The conclusions are as follows: during the period of mining，and when the working face is in the synclinal axis，the seismic source are mainly distributed above the coal seam，that is，the microseismic activity mainly occurs near the roof. When the working face is moving away from the synclinal axis gradually，seismic source distributions have a tendency to the lower side of coal seam，which means that the micro-seismic activity occurs mainly near the floor. When the two factors of syncline axis and the working face square overlay，rock burst tendency increases significantly. At last，the energy-frequency law of rock burst for synclinal axis tectonic is summarized which plays an important role in the production practice.

Key words: Synclinal axis, Micro-seismic activity, Rock burst, Seismic source evolution, Energy-frequency

谢群, 窦林名, 李宁, 张军伟, 谢龙, 谢连银. 向斜轴部附近微震活动规律及对冲击矿压的影响[J]. 金属矿山, 2013, 42(05): 144-147+163.

XIE Qun, DOU Lin-Ming, LI Ning, ZHANG Jun-Wei, XIE Long, XIE Lian-Yin. Micro-seismic Activity Law Near the Synclinal Axis and its Impact[J]. Metal Mine, 2013, 42(05): 144-147+163.

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