高瓦斯矿井工作面瓦斯抽采参数确定及应用研究

Study on Determination and Application of Gas Extraction Parameters in High Gas Mine Working Face

针对高瓦斯矿井回采过程中瓦斯超限影响工作面生产的问题。本文依据张子山煤矿开采条件为研究背景,对工作面瓦斯涌出量构成进行预测,确定了在回采过程中工作面瓦斯增加的因素,对不同因素下煤层瓦斯抽采进行可行性分析,介绍了回采工作面瓦斯抽采方法,设计了矿井瓦斯抽采具体方案,确定了开采层和采空区瓦斯抽采参数,为矿井煤层瓦斯治理提供了一定的借鉴经验。

Aiming at the problem of gas overrun affecting working face production in the process of mining in high gas mine.Based on the mining conditions of Zhangzishan Coal Mine as the research background,this paper predicts the composition of gas emission in the working face,determines the factors of gas increase in the working face during the mining process,analyzes the feasibility of coal seam gas extraction under different factors,introduces the gas extraction method in the working face,designs the specific scheme of gas extraction in the mine,determines the gas extraction parameters in the mining layer and goaf,and provides some reference experience for the gas control in the mine.