采动裂隙带卸压瓦斯运移的数值模拟分析

Numerical Simulation Analysis of Gas Migration in Coal Mining Induced Fracture Zone

根据贵州某煤矿11223工作面的瓦斯涌出量预测数据,运用fluent软件建立采动裂隙带工程简化三维模型,对U形通风、U形通风+埋管+高抽巷条件下采动裂隙带中瓦斯运移规律进行数值模拟。结果表明:采用U形通风+埋管+高抽巷进行瓦斯治理效果较好,可以降低瓦斯在采动裂隙带中的含量。

According to the prediction of gas emission from 11223 working face in a coal mine in Guizhou province, the fluent software is used to establish the simplified three-dimensional model, and the gas migration law of U type ventilation, U type ventilation ＋ buried pipe ＋ high pumping tunnel is simulated. The results show that the gas treatment effect is good, and the content of gas in the mining zone can be reduced by using the U type ventilation ＋ buried pipe ＋ high pumping lane.