地震活动与矿井顶板事故影响关系统计分析
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摘要
针对地震活动与顶板事故进行时空序列统计分析,得出两点新认识:(1)顶板事故与宏观地震序列有较强的频率对应,似乎是"遥相呼应";(2)相当多的顶板事故伴随有周边小震发生。推测部分原因是这些矿井位于地震带附近,部分原因是采矿卸压引发矿震,一些地震可能是宏观地震序列中的一部分。如果能够掌握,并加以利用,对于安全生产具有一定意义:对既定煤田,查找周边对矿区地应力影响强烈的地震带或断裂带,这些矿井顶板事故有可能成为周边地震带或断裂带的"应力窗",而地震带或断裂带的活动又成为煤矿地质灾害的"晴雨表"。在煤田大区,可以把顶板事故群发当作构造应力扰动的一种反映,作为大区构造应力扰动传入矿区,再与开采卸压作用叠加,引起地质灾害的证据。
The statistical research on the frequency of rock fall and earthquakes has obtained the following knowledge:(1) there is a good frequency correspondence between rock fall accidents and macro earthquakes; (2) quite a few micro earthquakes occurred at the same time with some rock falling accidents nearby. Some active faults passed through these coalmines; some earthquakes were caused by mining activities; and some were the responses to macro earthquakes. It is an important practice to look for all the active faults with great affection around a given coalmine for its production safety; the earthquakes on these faults will become a barometer of coalmine accidents and coalmine accident will also become the "stress window" for the active faults. Roof accidents should be taken as an evidence of tectonic stress fluctuation,which will interrupt the dynamic equilibrium of stress on mining site.
The statistical research on the frequency of rock fall and earthquakes has obtained the following knowledge:(1) there is a good frequency correspondence between rock fall accidents and macro earthquakes; (2) quite a few micro earthquakes occurred at the same time with some rock falling accidents nearby. Some active faults passed through these coalmines; some earthquakes were caused by mining activities; and some were the responses to macro earthquakes. It is an important practice to look for all the active faults with great affection around a given coalmine for its production safety; the earthquakes on these faults will become a barometer of coalmine accidents and coalmine accident will also become the "stress window" for the active faults. Roof accidents should be taken as an evidence of tectonic stress fluctuation,which will interrupt the dynamic equilibrium of stress on mining site.
引文
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[5]梁汉东.山西5起小煤矿瓦斯爆炸与青海8.1级地震有关吗[J]?科学技术与工程,2002,3(2):197-200.
[6]李世愚,和雪松,张天中,等.地震学在减轻矿山地质灾害中的应用进展[J].国际地震动态,2006,328:1-9.
[7]陈波,郑文涛,梁汉东.构造运动与煤矿瓦斯涌出事故之间影响关系机理分析[J].煤炭学报,2005,30(4):447-450.
[8]陈波,郑文涛.地震活动与煤矿灾害事故关系的思考[J].地学前缘,2003,10(2):366.
[9]杨力生.全国煤矿瓦斯地质编图研究成果初步总结[J].焦作工学院学报,1997,16(2):6-11.
[2]Xiao HP.Mechanismof the tectonic mine-earthquakein coal district[J].Huanan Geology,1999,18:141-146(in Chi-nese).
[3]Xiao H P.Coal mine earthquake stress windows effect[J].South China Journal of Seismology,1999,19(1):85-90(in Chinese).
[4]Zhang S Q,Ren Z Q,Zhang L C,et al.The usage of middle scale earthquake prediction proving ground on Mentougou coal mine[J].Acta Seismologica Sinica,1996,18(4):529-537(in Chinese).
[5]Liang H D.Shanxi s continual mining-gas explosion happen-ingin possible response to Kunlunshan s earthquakes[J].Sci-ence Technology and Engineering,2002,3(2):197-200(in Chinese).
[6]Li S Y,He X S,Zhang T Z,et al.Recent developments of mining seismology for mitigating mining hazards[J].Recent Developments in World Seismology,2006,328:1-9(in Chi-nese).
[7]Chen B,Zheng W T,Liang H D.Interaction of earthquake activity and gas accident in coal mining underground[J].Jour-nal of China Coal Society,2005,30(4):447-450(in Chi-nese).
[8]Chen B,Zheng W T.The thoughts on earthquake and coal mine accidents[J].Earth Science Frontiers,2003,10(2):366(in Chinese).
[9]Yang L S.Pri mary summary on research achievement of drawing China mining gas-geologic map[J].Journal of Jiao-zuo Institute of Technology,1997,16(2):6-11(in Chinese).
[2]肖和平.煤矿构造矿震机理[J].湖南地质,1999,18:141-146.
[3]肖和平.煤矿矿震应力窗口效应[J].华南地震,1999,19(1):85-90.
[4]张少泉,任振启,张连城,等.中尺度地震预报实验场的思路与方案:门头沟煤矿矿山地震的观测与应用研究[J].地震学报,1996,18(4):529-537.
[5]梁汉东.山西5起小煤矿瓦斯爆炸与青海8.1级地震有关吗[J]?科学技术与工程,2002,3(2):197-200.
[6]李世愚,和雪松,张天中,等.地震学在减轻矿山地质灾害中的应用进展[J].国际地震动态,2006,328:1-9.
[7]陈波,郑文涛,梁汉东.构造运动与煤矿瓦斯涌出事故之间影响关系机理分析[J].煤炭学报,2005,30(4):447-450.
[8]陈波,郑文涛.地震活动与煤矿灾害事故关系的思考[J].地学前缘,2003,10(2):366.
[9]杨力生.全国煤矿瓦斯地质编图研究成果初步总结[J].焦作工学院学报,1997,16(2):6-11.
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