摘要
利用高精度微震监测技术,对寿王坟南六号特大空区附近断层活动及该采空区围岩稳定性进行监测。通过对微震事件定位及其时空分布特征分析,得到断层活化的空间位置。利用微震事件b值趋势分析,实现未来一段时间内微震事件能量强度的预判。利用微震事件释放的P、S波能量比值(Es/Ep),研究断层附近区域诱发微震事件的震源机理。该实践表明,在断层附近区域布设微震监测系统,能够为分析断层活动趋势、评价采空区围岩稳定性及发展趋势等提供有效的预判信息,为保证矿山安全发挥重要的作用。
In this paper,using high-precision micro-seismic monitoring technology,the fault activity near the Shouwangfen south No.six huge goaf and the wall rocks stability of mined-out areas were monitored.Through the analysis of characteristics of seismic event location and its space-time distribution,the space location of fault activation is obtained.The b values trend analysis of micro-seismic events are used to achieve the anticipation of energy intensity of seismic events over a period of time.Using seismic event release of P,S wave energy ratio（Es/Ep）,the mechanism of inducing micro-seismic events near fault is studied.The practice shows that the microseismic monitoring system play an important role to analyze the trend of fault activity,to evaluate the surrounding rock stability of mined-out areas and the trend of development,to provide effective forecasting information,and to ensure the safety of mine production.
出处
《有色金属（矿山部分）》
2014年第5期1-5,共5页
NONFERROUS METALS(Mining Section）
基金
"十二五"国家科技支撑计划项目(2012BAK09B03
2012BAB01B04)
国家国际科技合作专项(2011DFA71990)
科研院所技术开发研究专项(2012EG115003)
关键词
断层
采空区
微震监测
围岩稳定性
fault
goaf
micro-seismic monitoring
wall rocks instability
