中文摘要：

以大黄山煤矿中大槽煤层开采为工程背景,利用FLAC3D和UDEC数值模拟软件研究了应力演化规律及覆岩裂隙演化规律,并基于数值模拟的结果进行了瓦斯富集区域的判定,分析了中大槽上分层开采瓦斯运移规律,据此进行瓦斯治理方案的设计,取得了良好的瓦斯治理效果。

英文摘要：

Taking the mining of middle and large slot coal seam in Dahuangshan coal mine as engineering background, the law of stress evolution and the evolution rule of the overburden cracks are studied by using FLAC3 Dand UDEC numerical simulation software and the judgment of the gas enrichment region is carried out based on the numerical simulation results.The law of gas emigration in middle and large slot coal seam is analyzed, and the design gas control scheme based on the law is carried out.