摘要
华亭煤业砚北煤矿由于采深较大,冲击矿压发生的频率很高。近年来开始使用SOS微震监测系统、CRMS应力在线监测系统以及声发射系统对冲击矿压进行监测和预报。通过分析砚北矿250204工作面微震活动、应力以及声发射的原始记录数据,研究了开采过程中几次典型冲击下三者之间的耦合关系,进而根据三者数据之间的曲线图趋势,提出了几种可行的耦合模式。特别是使用了微震分析指标Z-MAP统计值作为一个参量来进行分析,更加直观地反映了微震发生的概率大小,同应力和声发射数据有着很好的对应关系,从而为砚北煤矿的矿压观测提供了更好的理论依据。
Due to the deep mining in Yanbei coal mine of Huating, the occurrence frequency of rock burst is increas- ingly getting higher. In recent years, the SOS mieroseismic monitoring system, CRMS and AE system have been used to mo- nitor and predict rock burst. Through analyzing the microseismic, stress, and acoustic emission data during mining process in working face 250204, the coupling relationship of these data in several typical burst was studied, and several possible cou- pling modes were proposed. Especially using microseismic analysis indicators Z-MAP value as parameters, can directly re- flects the probability of microseism occurrence, and the close relationship of the mieroseism with the stress and AE. The result provides a theoretical basis for the strata control observation of Yanbei coal mine.
出处
《金属矿山》
CAS
北大核心
2012年第11期125-128,共4页
Metal Mine
基金
国家重点基础研究发展计划(973计划)项目(编号:2010CB226805)
"十二五"国家科技支撑计划项目(编号:2012BAK09B01)
国家自然科学基金项目(编号:51174285)
煤炭资源与安全开采国家重点实验室自主研究项目(编号:SKLCRSM10X05)
江苏高校优势学科建设工程项目(编号:SZBF2011-6-B35)
