摘要
新巨龙矿井1303N综放工作面为旋转调采工作面,采用ARAMIS微震监测系统对工作面推采期间的煤岩活动进行监测。通过对监测数据的分析得出了1303N工作面微震事件分布规律,研究表明工作面旋采期间能量释放较强烈,冲击地压危险性增大,旋采期间事件多集中在工作面旋转调采的内侧,工作面微震事件主要以顶板事件为主,顶板破裂高度在100m左右,底板破裂深度在40m左右。
The 1303 N fully mechanized top coal caving working face of Xinjulong coal mine is rotation mining,then coal and rock mass movement during working face advancing was monitored by ARAMIS micro-seismic system. The distribution law of micro-seismic accidents of 1303 N working face was put forward under monitoring data,the studying results showed that energy relaxed intensity during working face rotation mining,the rock burst increasing hazard was increasing,the accident almost appeared inside of rotation working face,the main working face micro-seismic accident was roof accident,and roof broken height was about 100 m,roof broken depth was about 40 m.
出处
《煤矿开采》
北大核心
2017年第5期89-91,70,共4页
Coal Mining Technology
基金
国家重点研发计划(2017YFC0804204)
国家自然科学基金项目(51574149)
天地科技开采生产力转化基金(KJ-2015-TDKC-05)
关键词
深井特厚煤层
旋转调采
微震监测
冲击地压
extra thickness coal seam in deep
rotation mining
micro-seismic monitoring
rock burst
