基于微震在线监测的实时震源波速反演技术应用  

Application of real-time seismic source wave velocity inversion technology based on microseismic online monitoring

作　　者：王元杰 WANG Yuanjie(CCTEG Coal Mining Research Institute,Chaoyang,Beijing 100013,China;Coal Mining Research Branch of China Coal Research Institute,Chaoyang,Beijing 100013,China;Tiandi Science and Technology Co.,Ltd.,Chaoyang,Beijing 100013,China;School of Mines,China University of Mining and Technology,Xuzhou,Jiangsu 221116,China)

机构地区：[1]中煤科工开采研究院有限公司,北京市朝阳区100013 [2]煤炭科学研究总院开采研究分院,北京市朝阳区100013 [3]天地科技股份有限公司,北京市朝阳区100013 [4]中国矿业大学矿业工程学院,江苏省徐州市221116

出　　处：《中国煤炭》2023年第11期31-38,共8页China Coal

基　　金：国家“科技助力经济2020”重点专项项目(SQ2020YFF0426364);天地科技股份有限公司科技创新创业资金专项项目(2019-TD-2-CXY004、2019-TD-2-CXY006)。

摘　　要：为了提高冲击地压监测精度、监测范围和监测结果的时效性,基于微震在线监测的实时震源波速反演技术对综采工作面高应力区以及冲击危险区域进行探测。结果表明,高应力分布区域与大能量微震事件震源点位置基本一致,结合大能量微震事件发生前相应区域地音活动特征,验证了震源波速反演结果中应力集中区域与煤岩体中高应力分布区域基本吻合,实时震源波速反演对于探测煤层高应力区域分布规律具有较好的适用性,该技术可直观反馈工作区域应力场的变化。In order to improve the accuracy,scope,and timeliness of rock burst monitoring,the real-time seismic source wave velocity inversion technology based on microseismic online monitoring is used to detect and study the high stress areas and rock burst risk areas in fully mechanized mining faces.The research and engineering monitoring results indicate that the high stress distribution areas are basically consistent with the seismic source positions of the high-energy microseismic events.Combining with the characteristics of seismic activity in the corresponding areas before the occurrence of the high-energy microseismic events,it is verified that the stress concentration areas in the seismic source wave velocity inversion results are basically consistent with the high stress distribution areas in the coal and rock mass.Real-time seismic source wave velocity inversion has good applicability for detecting the distribution law of high stress areas in coal seams,and this technology can provide intuitive feedback on the changes in the stress field in the working area.

关 键 词：冲击地压监测 微震监测系统 实时震源波速反演 高应力区域探测 应力场 

分 类 号：TD325[矿业工程—矿井建设] P631[天文地球—地质矿产勘探]