摘要
本文结合城子矿—250m水平孤老煤柱安全采出的实践,论述了防治冲击地压措施中的几个问题。其中,主要有合理选择、开拓布署、超前卸压爆破、卸压钻孔及避峰送巷等。
In combination with the practice that the isolated old pillars at level-250m in Cheng Zi mine are extracted out, the paper discusses some problems about measures of prevention and remedy of rock-burst, such as choosing reasonable engineering plan, unloading blas and unloading drilling before mining coal sems and avoiding peak value of stress in coal seam for driving headings, etc.
关键词
老矿井
煤柱
开采
冲击
地压
防治
the isolated old pillar
rock-burst
engineering plan
unloadingblast
avoiding peak value for driving heading
