基于微震监测的浅埋工作面动压预警技术研究  

Predicting Research of Strong Strata Behaviors under Shallow Coal- seam by Microseismic Monitoring

作　　者：王秀元[1] 李少刚[2,3] 王永仁[2,3] 

机构地区：[1]神华神东煤炭集团石圪台矿,陕西榆林719315 [2]煤炭科学技术研究院有限公司安全分院,北京100013 [3]煤炭资源高效开采与洁净利用国家重点实验室(煤炭科学研究总院),北京100013

出　　处：《华北科技学院学报》2014年第9期12-15,共4页Journal of North China Institute of Science and Technology

摘　　要：石圪台煤矿为更有效地预测预报动载矿压事故,应用KJ768微震监测系统对31201工作面回采期间进行监测。根据微震事件的数量及能量与顶板来压之间的规律,总结出3-1煤顶板来压预警数量指标为15个微震事件,总能量指标为4.0E＋10^5J;2-2煤顶板来压预警数量指标为30个微震事件,总能量指标为8.0E＋10^5J。根据预警指标准确预报了动载矿压事故,为矿井的安全高效开采提供了保障。Shigetaicoal mine has applied KJ768 microseismic monitoring system in 31201 working face for predic-ting strong strata behaviors. According to the law of the number and energy of microseismic events and roof pres-sure, it is summarized that the warning indicator of 3 -lcoal -seam is 15 microseismic events, the total energy in-dex is 4. 0E ＋ 10^5J;the warning indicator of 2 -2 coal -seam is 30 microseismic events, the total energy index is8. 0E ＋ 10^5J. KJ768 microseismic monitoring system has accurately predicted strong strata behaviors, which pro-vides guarantee for safe and efficient mining.

关 键 词：微震监测 动载矿压 数量 能量 

分 类 号：TD326[矿业工程—矿井建设]