摘要
以煤田内宏远煤矿开采的B1煤层为例,分析了急倾斜自燃煤层采空区瓦斯抽采易造成采空区火灾、不抽采易造成上隅角瓦斯积聚甚至超限的难点与不足,针对B1煤层在回采和掘进中存在具体问题,对矿井瓦斯抽采方式进行了改进,提出了适合高瓦斯矿井急倾斜自燃煤层的瓦斯抽采技术,取得了良好的效果。
Taking Hongyuan coal mine in coalfield as an example, analyzed the presence of difficulties and inadequacies that gas drainage could easily cause fire in goaf and no gas drainage could easily cause gas accumulation in the upper corner on coal face. The gas extraction techniques were improved to suitable for high gassy and steeply inclined spontaneous combustion seam for specific problems in mining and driving. A good effect was achieved.
出处
《煤炭技术》
CAS
北大核心
2016年第2期171-172,共2页
Coal Technology
基金
国家自然基金项目(71363040)
关键词
急倾斜
自燃煤层
瓦斯抽采
steep inclination
spontaneous combustion seam
gas drainage
