摘要
国投新集一矿210606工作面掘进期间受上方210806工作面采空区积水的威胁,通过分析研究,打破常规探放水模式,提出在-550m轨道石门施工俯角钻孔超前探放210806面采空区积水的方案。实践证明:利用俯角钻孔负压状态下超前探放老空区积水是完全可行的,具有操作安全简单、可控性好、放水流量稳定、维护运行费用低、疏放水工期超前等优点,为类似条件下超前疏放老空区积水提供了宝贵的经验。
During drivage,SDIC Xinji No.1 Mine 210606 face was on the hazard of 210806 face goaf water.After analysis,an innovative mode of water detection and drainage was proposed,building a dip- angle borehole at- 550 m for the advance water detection and negative pressure drainage in track cross- cut of 210806 face goaf.Practice proves that,the proposed scheme has favorable safety,easy operation,good controllability,stable water,low maintaining costs,high water drainage efficiency,provides a valuable experience.
出处
《煤炭工程》
北大核心
2015年第1期50-52,共3页
Coal Engineering
关键词
负压
俯角
探放水
老空区积水
negative pressure
dip angle
water detection and drainage
old goaf water
