微震监测系统在朱集矿首采工作面安全生产中的应用  

Application of microseismic monitoring in safe production of the first mining face at Zhuji coal mine

作　　者：刘超[1] 余国锋[2] 王龙[3] 

机构地区：[1]西安科技大学能源学院,陕西西安710054 [2]煤矿瓦斯治理国家工程研究中心,安徽淮南232001 [3]大连理工大学土木工程学院,辽宁大连116024

出　　处：《煤炭工程》2016年第5期74-76,共3页Coal Engineering

基　　金：国家自然科学基金资助项目(51304154);安徽省自然科学基金面上资助项目(1408085MKL92);陕西省博士后科研资助项目(陕博管办[2013]10号-2-76);西安科技大学博士后启动金(2014QDJ062)

摘　　要：为了实现对朱集矿首采面回采期间顶板的安全有效管理,从ESG公司引进一套矿山微震监测系统MMS(Microseismic Monitoring System),采取现场工业性试验的方法,对工作面上覆岩层的微震活动实施连续监测。结果表明:微震事件主要分布在顶板岩层中,煤层和底板事件很少,且事件主要位于工作面前方,工作面及其后方事件较少;微震事件的发生具有明显的周期性;首采面覆岩的裂隙主要分布区间为-840^-880m之间(距地表垂距);次要分布区间为-800^-840m、-880^-900m。以上试验结果为工作面覆岩动力灾害的预测及裂隙带的瓦斯抽采提供了依据。In order to realize the effective and safe management of first mining face during the mining period in Zhuji coal mine,with field industrial test,the microseismic activity of overlying strata in working face is monitored continuously using MMS introduced from ESG. The results show that the microseismic events mainly distributes in the roof stratum,other than in the coal seam and floor,furthermore,the events mainly locates in front of the working face more than the goaf; the occurrence of microseismic events have obvious periodicity; the fracture of overlying strata in first mining face mainly distributes in the range of- 840 ^- 880 m,secondary distribution is about- 800 ^- 840 m and- 880 ^- 900 m. These results provide a reference for the prediction of dynamic disasters and gas drainage of fracture zone for overlying strata in the mining working face.

关 键 词：微震监测 动力灾害 首采工作面 覆岩 安全生产 

分 类 号：TD324[矿业工程—矿井建设]