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.
出处
《煤炭技术》
CAS
北大核心
2015年第2期308-311,共4页
Coal Technology
关键词
上保护层
无煤柱
沿空切顶成巷
upper protective seam
without coal pillar
cumulative blasting roof caving
