CAJ | 학술논문

传统的高位钻场瓦斯抽采将钻孔布置在顶板同一层位，存在同时失效的可能，影响瓦斯治理效果。本文结合兴安煤矿下保护层开采的顶板岩性特点，关键层的分布层位，冒落带及裂隙带发育规律特点，对高位钻场瓦斯抽采技术实施改进，提出高位钻场三重钻孔瓦斯抽采技术，并取得较好的抽采效果。
전통적고위찬장와사추채장찬공포치재정판동일층위，존재동시실효적가능，영향와사치리효과。본문결합흥안매광하보호층개채적정판암성특점，관건층적분포층위，모락대급렬극대발육규률특점，대고위찬장와사추채기술실시개진，제출고위찬장삼중찬공와사추채기술，병취득교호적추채효과。
The borehole of traditional high location drilling field gas extraction was arranged at the same layer inthe roof,which could fail at the same time and affect gas control effect. Combined with roof lithological charac- teristics of mining bellow protective layer, the distribution horizon of critical layer and the characteristics of de- velopment rules of caving zone and fracture zone in Xingan Colliery, the paper introduced the implement im- provements of high location drilling field gas extraction technology and put forward high location drilling field tri- ple borehole gas extraction technology, which achieved good extraction effects.