顶板长距离裂隙带钻孔替代高抽巷抽采技术研究

Research on Drilling in Long Distance Crevasse Zone in Roof Strike in Place of High Pumping Roadway

为解决中兴煤矿高抽巷掘进工程量大、投入成本高、时间长等问题,该矿引进ZDY6000LD型千米定向钻机,并在1(02)09工作面进行了顶板定向长距离钻孔替代高抽巷抽采试验,试验结果表明,顶板长距离定向钻孔抽采瓦斯浓度在60%以上,平均抽采纯量达5.2m3/min,实现了"以孔代巷"瓦斯抽采。

To solve the problems such as large work quantity, high cost, long time, etc in high drainage of Zhongxing Mine, the mine model ZDY6000LD km directional drilling is introduced in, and construction in 1 （02） 09 working face roof directional distance drilling is the extraction from the high pumping experiment, the experimental results show the roof of long-distance directional drilling extraction concentration is over 60%, the average extraction is scalar 5.2m3/min, which has realized ＂long hole instead of roadway＂ gas extraction.