摘要
针对缓倾斜突出煤层石门揭煤易发生突出的特点,结合焦作矿区二1煤层揭煤的大量研究与实践,确定了以石门短导硐震动爆破配合交叉钻孔强化卸压抽采为主的缓倾斜突出煤层石门揭煤技术,实现了冯营矿2415车场、2417车场的安全揭煤,为矿井合理采掘部署提供了保障。
For the characteristics of rock crosscut coal uncovering outburst in gently inclined outburst coal seam, and combining numerous studies and practice of two-1 coal uncovering in Jiaozuo mining area, determining the coal uncovering technology which through short pilot tunnels shock-blasting with cross borehole pressure relief gas drainage in gently inclined outburst coal seam. Achieved safe exposing coal in 2415 and 2417 yard in Fengying mine, and provided protection for mining deployment reasonably.
出处
《山东煤炭科技》
2016年第4期21-23,共3页
Shandong Coal Science and Technology
关键词
揭煤
短导硐
缓倾斜
震动爆破
uncovering coal
short pilot tunnels
gently inclined
shock-blasting
