沿空切顶巷在上保护层煤气共采中的抽采应用  

Application of Drainage Gob-side Entry Formed by Cumulative Blasting Roof Caving in Upper Protective Seam Coal and Gas Simultaneous Extraction

作　　者：黄伟 宋润权 张国峰[2] 

机构地区：[1]四川煤炭产业集团芙蓉公司白皎煤矿,四川珙县644501 [2]中国矿业大学(北京),北京100083

出　　处：《煤炭技术》2015年第2期308-311,共4页Coal Technology

摘　　要：基于解决白皎煤矿2441上保护层开采时因单一化底板穿层钻孔对卸压瓦斯抽采不充分而引发的采场回风流和隅角瓦斯超限隐患,研究了此类采面开采时顶底板煤岩裂隙生成特征及瓦斯运移、富集规律,提出了利用该面无煤柱开采时配套应用的沿空切顶成巷为空间载体,施工多向钻孔抽采富集瓦斯为技术路线的开采方案。In order to solve the problem of Baijiao coal mine protective seam mining cause of pressure relief gas drainage caused by inadequate gas gauge,studies the mining face roof and floor of coal-rock fissure formation characteristics,gas movement,enrichment regularity,the exploitation of the coal mining face supporting the application of Gob-Side entry formed by cumulative blasting roof caving into space vector,and technical scheme of drilling a plurality of the direction ofthe gas drainage.

关 键 词：上保护层 无煤柱 沿空切顶成巷 

分 类 号：TD712.6[矿业工程—矿井通风与安全]