四川煤矿须家河组极薄煤层瓦斯抽采方法  

Method of Gas Drainage in Ultra Thin Seam Group of Xujiahe Group in Sichuan Mine

作　　者：李维光[1] 吕俊高 

机构地区：[1]四川师范大学工学院,四川成都610101 [2]四川矿山安全技术培训中心,四川成都610017

出　　处：《煤炭工程》2011年第10期57-59,共3页Coal Engineering

摘　　要：针对四川煤矿煤层薄、构造复杂、渗透性差的特点,考察研究了须家河组极薄煤层的汪洋、杨村铺、胜利等高瓦斯煤矿瓦斯抽采的方法及其效果。研究结果证明,开采须家河组极薄煤层的高瓦斯煤矿,顺煤层钻孔预先抽采瓦斯只在地质构造区条件下才有较好的效果,而穿层钻孔抽采卸压瓦斯效果更好,因此,穿层钻孔抽采卸压瓦斯是四川煤矿极薄煤层瓦斯的主要抽采方法。According to the features of the thin seam, complicated structure and poor permeability in Sichuan Mine, an investigation and study on the gas drainage method and the effect was conducted in Wangyang, Yangcunpu, Shengli and other high gassy mines for the mining in the ultra thin seams of Xujiahe Group. The study results showed that to mine the ultra thin seam of Xujiahe Group in high gassy mine, the gas pre -drainage with boreholes in along seam would have a good effect only under the condition of the geological structure zone. And the borehole drilled through strata applied to the gas drainage in adjacent strata would have more better effect of the gas pressure released. Therefore, the borehole drilled through strata applied to the gas drainage in adjacent strata for gas pressure releasing would be the main gas drainage method of the ultra thin seam gas in Siehuan Mine.

关 键 词：四川煤矿 极薄煤层 抽采方法 穿层钻孔 顺层抽采 

分 类 号：TD712.6[矿业工程—矿井通风与安全]