基于微震监测的综采面冲击地压防治技术研究  

Research on rock burst prevention and control technology in fully mechanized mining face based on micro-seismic monitoring

作　　者：石超弘 丁国利 苏士杰 于辉华 刘晨阳 姚锐 Shi Chaohong;Ding Guoli;Su Shijie;Yu Huihua;Liu Chenyang;Yao Rui(Hulusu Coal Mine, Coal Branch of Zhongtianhechuang Energy Co., Ltd., Ordos, Inner Mongolia 017399, China)

机构地区：[1]中天合创能源有限责任公司煤炭分公司葫芦素煤矿,内蒙古鄂尔多斯市017399

出　　处：《中国煤炭》2020年第6期57-62,共6页China Coal

摘　　要：针对21103工作面推进过程中临空巷道矿压显现剧烈、冲击危险性高的问题,采用ARAMIS M/E微震监测设备对21103工作面进行长期监测。监测结果得出:微震能量与推进度变化曲线局部空白包络的形成趋势可以作为判定大能量事件或冲击地压事件发生的依据。微震频次及释放能量曲线在21103回风巷煤柱区出现波峰、波谷两种极端状态,74%以上的微震事件发生在超前工作面0~300 m,释放能量为微震事件总能量的90%以上;21103回风巷呈现出宏观上围岩破碎、大变形,微观上微震各能级事件丛集现象。针对21103回风巷设计采用由上至下分源治理措施,降低了21103回风巷冲击危险程度,确保了21103工作面的安全回采。Aiming at the severe pressure behaviors and high rock burst risk in gob-side entry during advancing process of the 21103 working face, the ARAMIS M/E micro-seismic monitoring equipment was used for long-term monitoring in the 21103 working face. The monitoring results showed that the formation trend of local blank envelope of micro-seismic energy and advance degree curve could be used as the basis for judging the occurrence of large energy event or rock burst event. In the coal pillar area of 21103 return air roadway, there were two extreme states of wave peak and wave trough in the frequency and energy release curve of micro-seisms. More than 74% of micro-seisms occurred at 0-300 m ahead of the working face, and whose energy released was more than 90% of the total energy of micro-seisms. In the 21103 return air roadway, there are macroscopically broken and large deformation of surrounding rock, and micro-seism events of various energy levels. According to the design of 21103 return air roadway, the control measures by sources from top to bottom were adopted to reduce the rock burst risk of 21103 return air roadway and ensure the safe mining of 21103 working face.

关 键 词：微震监测 空白包络 冲击地压 分源治理 冲击危险程度 

分 类 号：TD324.2[矿业工程—矿井建设]