摘要
东峰煤矿3号煤层采用综采放顶煤回采工艺,煤层平均厚度5.98 m,工作面采高3.3 m,放煤高度2.68 m,为准确掌握综采放顶煤工作面覆岩破坏发育高度,通过勘查钻孔岩芯编录、钻孔冲洗液消耗量观测和钻孔电视录像等手段,观测研究了东峰煤矿矿井3号煤层“三带”发育高度,对指导矿井安全生产提供了准确的数据资料。
The fully mechanized top-coal caving mining technology is adopted in the No.3 coal seam of Dongfeng Coal Mine.The average thickness of the coal seam is 5.98 meters,the mining height of the working face is 3.3 meters,and the coal caving height is 2.68 meters.In order to accurately grasp the development height of the overburden damage in the fully mechanized top-coal caving working face,the development height of the"three zones"in the No.3 coal seam of Dongfeng Coal Mine is observed and studied by means of the exploration of the core logging,the observation of the consumption of the drilling washing fluid,and the drilling video recording,It provides accurate data for guiding mine safety production.
作者
靳银盛
JIN Yinsheng(Shanxi Lanhua Group Dongfeng Coal Mine Co.,Ltd.,Jincheng048400,China)
出处
《煤矿现代化》
2023年第5期33-37,共5页
Coal Mine Modernization
关键词
3号煤层
“三带”
发育高度
3#coal seam
“three belts”
developmental height
