摘要
为有效解决孟津煤矿11010工作面回采过程中,采空区以及上隅角的瓦斯积聚问题,根据工作面的实际情况,在采煤工作面回风顺槽布置顶板走向高位钻孔对采空区瓦斯进行治理。通过具体试验并对比抽采浓度情况,确定孟津煤矿11010工作面裂隙带高度应在27~35 m,最终认定将钻孔终孔点布置在距煤层顶板25和35 m处时的瓦斯抽采效果最好。
In order to effectively solve the gas accumulation in the goaf and the upper corner during the mining process of the 11010 working face of Mengjin Coal Mine.According to the actual situation of the working face,the gas in the goaf is controlled by arranging the top plate along the trough with the return air in the coal mining face.Through specific tests and comparison of the extraction concentration,it is deter⁃mined that the height of the fissure zone in the 11010 working face of Mengjin Coal Mine should be 27~35 m.Finally,it is determined that the gas drainage has best effect when the end point of the borehole is ar⁃ranged at 25 m and 35 m from the coal seam roof.
作者
王迪
WANG Di(Henan Energy Mengjin Coal Mine Co.,Ltd.)
出处
《现代矿业》
CAS
2022年第3期244-247,共4页
Modern Mining
关键词
瓦斯积聚
顶板走向
高位钻孔
瓦斯抽采
gas buildup
roof direction
high position drilling
gas extraction