微震监测技术在东庞矿北井的应用研究

Application of microshock monitoring technology in north mine of Dongpang Mine

东庞矿北井属于典型的华北石炭二叠系矿井,所采煤层与奥灰含水层之间的隔水层厚度为37 m左右,受奥灰水威胁严重。针对目前现状,在东庞矿北井建立了一套高精度微震监测系统,并实时获得现场监测数据。对监测数据空间分布进行分析研究,并与井下生产活动相结合,用实际发生的微震事件进行验证,为矿井的安全生产提供依据。

The north mine of Dongpang Mine is a typical carboniferous Permian mine in North China.The thickness of the water separator between the coal seam and the Olympic ash aquifer was about 37 m,which was seriously threatened by the Olympic ash water.In view of the current situation,a high-precision microshock monitoring system was established in the north mine of Dongpang Mine,and the on-site monitoring data were obtained in real time.The spatial distribution of the monitoring data was analyzed and studied,combined with the underground production activities,and verified with the actual micro-shock events,so as to provide a basis for the safe production of the mine.