摘要
介绍了突出煤层底板抽放巷强化松动爆破增透抽放瓦斯方法试验,分析了深孔预裂爆破保护范围,利用工作面深孔爆破技术来增大煤层透气性,提高卸压瓦斯抽放效果,大大减少了突出危险性。提出了突出煤层底抽巷强化增透抽放瓦斯的新观念。
In this paper, gas drainage experiments in roadway, which located in floor and used to drainage gas, were carried out and investigated using the method of deep - hole blasting in gassy coal seam. The safeguard range by blast is analyzed, and the permeability is promoted sharply. The results show that this method reduc- es the outburst risk and increases the drainage effect greatly. The new concept of drainge in drainage - gas roadway intensified increasing permeability and drainage effect is put forward.
出处
《煤炭技术》
CAS
北大核心
2010年第3期202-204,共3页
Coal Technology
关键词
突出煤层
瓦斯抽放
深孔爆破
增透
outburst coal seam
gas drainage
deep hole blasting
increasing permeability
