CAJ | 학술논문

针对潘北矿1131（3）综采工作面煤层角度大、易自燃等特点，为提高钻孔的抽采效果及钻孔综合应用，对顶板走向钻孔的技术参数进行了优化与确定，通过实施钻孔优化和封孔工艺等一系列新措施和新方法后，抽采瓦斯浓度有了很大的提高，工作面后期抽采量达到4．5 m3/min ，钻场抽采总瓦斯浓度达40％～70％，抽采率达65％，增大了钻孔抽采效果，实现了抽采最大化，同时“一孔多用”，为防火保驾护航，实现了煤与瓦斯安全高效回采。
침대반북광1131（3）종채공작면매층각도대、역자연등특점，위제고찬공적추채효과급찬공종합응용，대정판주향찬공적기술삼수진행료우화여학정，통과실시찬공우화화봉공공예등일계렬신조시화신방법후，추채와사농도유료흔대적제고，공작면후기추채량체도4．5 m3/min ，찬장추채총와사농도체40％～70％，추채솔체65％，증대료찬공추채효과，실현료추채최대화，동시“일공다용”，위방화보가호항，실현료매여와사안전고효회채。
According to The large angle and inflammability of coal seam in 1131 (3)fully mechanized coal mining face of Panbei Mine ,in order to improve the extraction effect and the comprehensive applica-tion of borehole ,technical parameters of along -strike roof drills were optimized and determined .A series of new measures and new methods such as the implementation of drilling optimization and sealing technol-ogy have been used ,and gas drainage concentration has been greatly improved ,the working face extraction volume reached 4 .5 m3/min later ,the drill field drainage total gas concentration reached 40 ~ 70 % ,ex-traction rate reached 65 % ,the drainage effect was enhanced and realized extraction maximum .At the same time ,one hole has Multi-Purpose ,and protected fire ,realized the safe and efficient of simultaneous extraction of coal and gas .