摘要
通过技术论证,对2北301综采工作面剩余三角煤,进行沿空留巷进行回采及造回撤条件,最大提高资源回收率,减少资源浪费,延长工作面推采时间,提高公司效益,减少对下一步开采采区煤柱冲击地压影响。
Through technical demonstration,Daxing Company carried out the extraction of the remaining triangle coal in the 2 nd North 301 fully mechanized coal mining face,and carried out the conditions of gob-side entry retaining and production and withdrawal,so as to increase the recovery rate of resources,reduce the waste of resources,and prolong the working face pushing mining time,improve company benefit,reduce to next mining area coal pillar impact ground pressure influence.
作者
程洪飞
孔凡贵
程洪强
王伟
CHENG Hong-fei;KONG Fan-gui;CHENG Hong-qiang;WANG Wei(Zaozhuang Daxing Mining Co.,Ltd.,Zaozhuang 277317,China)
出处
《煤炭技术》
CAS
2020年第11期15-17,共3页
Coal Technology
关键词
沿空留巷
三角煤
造回撤条件
三软煤层
冲击地压
along goaf roadway
triangle coal
withdrawal conditions
three soft coal seams
rock burst
