张集矿深部采区B组煤层瓦斯综合治理  

Study on Comprehensive Gas Control Techniques in Deep Mining Area B of Zhangji Colliery

作　　者：李应辉[1] 

机构地区：[1]淮南矿业集团张集煤矿,安徽淮南232174

出　　处：《江西煤炭科技》2009年第3期61-64,共4页Jiangxi Coal Science & Technology

摘　　要：开采保护层是目前国内外公认的提高瓦斯抽采率、防治突出和冲击地压等的一种安全高效措施。根据张集矿深部采区B组（11—2～4）煤层及瓦斯赋存情况，合理选择9煤层作为关键保护层，下保护11—2煤层，上保护8煤层，开采8煤层保护6煤层，开采6煤层保护4煤层，实现层层保护。开采9煤层并结合11—2、6煤层底板巷穿层钻孔预抽11—2、8、6、4煤层煤体卸压瓦斯，实现高瓦斯工作面在低瓦斯状态下采掘，确保矿井安全高效生产，同时进行了技术方案经济比较，实现技术经济一体化。It is universally acknowledged that the exploitation of the protection layer is a safe and efficient measure that can increase coal＇s depth, raise the rate of gas extraction, prevent outburst and the pressure of impact. According to the condition of seam and gas occurrence in deep mining area B （11- 2 -4） of Zhangji Colliery, the author suggests a reasonable choice of Seam 9 as the key protection layer, which can protect Seam 11--2 under it, Seam 8 above it, and achieve the protection of mutual seam. by mining Seam 8 to protect Seam 6 , mining Seam 6 to pr floor way of otect seam 4. Meanwhile, it is suggested that mining seam 9 and combining the crossing hole at the Seam11--2 and 6 to draw out the relieving gas in Seam 11- 2.8.6.4 beforehand should ensure the safe and efficient production in a state of low--gas extraction at a high--gas working face, and achieve the tech nical and economic integration.

关 键 词：保护层 底板巷穿层钻孔 卸压瓦斯 安全高效 技术经济一体化 

分 类 号：TD712[矿业工程—矿井通风与安全]