浅埋低采高综采工作面安全高效回采技术研究
Study on safe and efficient stoping technology of fully mechanized face with shallow mining height
刘学江 1卞涛1
作者信息
- 1. 国能神东煤炭集团有限责任公司补连塔煤矿,内蒙古 鄂尔多斯 017209
- 折叠
摘要
补连塔煤矿 22501综采工作面宽度 300 m,推进长度 562.3 m,回采面积 16.8万m2.煤厚 1.5～1.8 m,煤层平均厚度 1.6 m,倾角为 1°～3°,地层总的趋势是以极缓的坡度向北西倾斜的单斜构造,倾角 1°～3°,断层不发育,后生裂隙发育.根据四壁顺槽揭露情况,工作面无断层、冲刷等构造.对工作面初次来压及周期来压,特殊地质条件下来压情况进行了详细介绍,对类似综采工作面的回采具有指导意义.
Abstract
The width of 22501 fully mechanized face in Bulianta Coal Mine is 300 m,the thrust length is 562.3 m,the mining area is 168 000 m2.The thickness of coal seam is 1.5-1.8 m,the average thickness of coal seam is 1.6 m,and the dip angle is 1°-3°.According to the exposed situation of the four-wall trough,the working face has no faults,scour and other structures.This paper introduces in detail the first weighting and periodic weighting of the working face and the weighting under special geological conditions,which is of guiding significance for the future mining of similar fully mechanized coal face.
关键词
综采工作面/矿压规律/初次来压/周期来压/回采Key words
fully mechanized mining face/mine pressure law/first weighting/periodic weighting/mining引用本文复制引用
出版年
2024
NETL
NSTL
万方数据