摘要
根据回采工作面采空区顶板垮落规律,分析了瓦斯在采空区内运移规律及流动方程,得出沿采空区深处方向瓦斯浓度变化规律和等浓度场,结合现有的采空区瓦斯抽放方法,对煤矿回采工作面采空区瓦斯抽放有一定的指导作用。
Based on the roof collapse law of the stoping face in a goaf, the gas travel rule and flow equation in the goal were analyzed. The gas concentration variation rule and isoconcentration field along depth of the goaf were acquired. Combing with the existing gas drainage method of the goaf, it played a certain positive role for gas drainage in the stoping face of the goaf in a coal mine.
出处
《现代矿业》
CAS
2009年第3期68-72,共5页
Modern Mining
