论文部分内容阅读
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。
Based on the engineering background of large-medium slot coal seam mining in the Dahuangshan Mine, the evolution of stress and the evolution of overburden fracture were studied by using FLAC3D and UDEC numerical simulation software. The results of the numerical simulation were used to determine the gas-enriched area. Large-scale trough mining gas migration rules, accordingly, gas treatment program design, and achieved good gas control effect.