CAJ | 학술논문

为了合理布置地面抽采瓦斯钻孔，基于矿山压力与顶板控制理、保护层开采理论等，研究了地面钻孔平面布置和结构，地面钻孔抽采瓦斯量和抽采瓦斯浓度随工作面距钻孔距离的变化规律，同时利用双示踪技术对地面钻孔抽采范围进行了测试，综合考察了地面钻孔抽采煤层卸压瓦斯的有效范围。结果表明：地面钻孔抽采瓦斯有效范围不小于200m。
위료합리포치지면추채와사찬공，기우광산압력여정판공제리、보호층개채이론등，연구료지면찬공평면포치화결구，지면찬공추채와사량화추채와사농도수공작면거찬공거리적변화규률，동시이용쌍시종기술대지면찬공추채범위진행료측시，종합고찰료지면찬공추채매층사압와사적유효범위。결과표명：지면찬공추채와사유효범위불소우200m。
In order to rationally arrange the ground drillings of gas drainage , based on the theory of ground pressure and strata controlling and the mining of protective layer , the layout and structure of the ground drillings , the rela-tion of gas drainage volume and gas extraction concentration of surface drillings and the distance of ground drillings and working-face were studied , while dual-tracer technique was applied to test the range of gas extraction of surface boreholes, the effective range of coal seam relief pressure gas of the ground drilling was surveyed .The results showed that effective range of gas extraction of surface boreholes is not less than 200 m.