构造控制型冲击地压的微地震监测预警研究与实践  

Predicting research and practice of tectonic-controlled coal burst by microseismic monitoring

作　　者：姜福兴[1,2] 苗小虎[1,2] 王存文[1,2] 宋加宏 邓建明 孟飞 

机构地区：[1]北京科技大学金属矿山高效开采与安全教育部重点实验室,北京100083 [2]北京科技大学土木与环境工程学院,北京100083 [3]朝阳矿业有限公司,山东滕州277517

出　　处：《煤炭学报》2010年第6期900-903,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(2007BAK24B04);国家重点基础研究发展计划(973)基金资助项目(2010CB226803)

摘　　要：采用微震监测方法,研究了构造控制型冲击地压的分类和预警方法,提出了将构造控制型冲击地压分为增压和减压2种类型。当采掘工作面接近增压型构造时,微地震事件在构造附近将出现明显的"分区性",表明构造附近在积聚应力,可以作出危险性预报;当构造附近微地震事件能量不大,震动间隔较均匀,且能够随工作面推进向远处迁移,表明构造附近没有大量积聚应力,冲击危险性较小。在煤矿应用时,通过分析微震事件的动态特性、分布特性和能量耗散特性,确定预警危险区,采用钻孔法确定危险区的危险程度,最后作出危险性预警,为制定对策提供依据。本文的研究结果已在山东朝阳煤矿千米深井冲击煤层开采过程中得到了验证和应用。By using microseismic（MS） monitoring methods,the classification and early warning methods of tectonic-controlled coal burst were studied.It was proposed that tectonic-controlled coal burst could be divided into two types：stress-increasing type and stress-decreasing type.If microseismic events occur in a limited zone while mining face advancing towards the tectonic zone,it means that mining stress is centralizing in this zone and the possibility of coal burst is increasing.If microseismic events occur in a large zone while mining face advancing towards the tectonic zone,it means that mining stress distributs in this zone and the possibility of coal burst is decreasing.Based on MS events’ dynamic feature,distribution rule and energy spread,the burst danger zones can be decided.By drilling detecting holes,the burst danger grades can ensured.This paper’s findings were verified and applied in Chaoyang Coal Mine,which was mining strong burst tendency seam at one kilometer mining depth.

关 键 词：煤矿 冲击地压 微地震监测 构造区 断层 

分 类 号：TD324.2[矿业工程—矿井建设]