同忻矿8^(#)层顶抽巷光面爆破施工技术探讨

Discussion on Smooth Blasting Construction Technology of Top Drainage Roadway of No.8 Coal Seam in Tongxin Mine

同忻矿C8^(#)层北一盘区8105工作面顶抽巷钻爆法掘进巷道时存在的巷道成型与茬进问题,通过运用光面爆破漏斗理论,研究实施了实时层节理光面爆破,现场实践表明,同忻矿C8#层北一盘区8105面顶抽巷的茬进由原来的2 m提高到2.5 m,日均进由3 m提高到4 m。

Due to the problems of roadway formation and footage when drilling and blasting method is used in 8105 working face of North No.1 panel of No.8 coal seam of Carboniferous System in Tongxin coal mine,the real-time smooth blasting method of joint is implemented by using smooth blasting funnel theory.The field practice shows that the footage of 8105 working face of North No.1 panel of No.8 coal seam of Carboniferous System in Tongxin coal mine is increased from 2m to 2.5m,The average daily footage is increased from 3 meters to 4 meters.