深部采煤工作面瓦斯涌出受采动影响数值模拟的研究

A study on the numerical simulation of deep coal face gas in-flow affected by mining activity

采用RFPA系统针对赵各庄矿回采工作面受采动影响而造成的裂隙带分布状况和瓦斯压力变化进行数值模拟,总结采场围岩裂隙演化关系与卸压瓦斯储集及运移规律,为有效治理回采工作面的瓦斯涌出问题提供技术支持。

By using RFPA system, a numerical simulation is carried out on the fissure zone distribution and mine gas pressure changes under the influence of mining activity at coal faces in Zhaogezhuang Coal Miner. This pa- per also summarizes the evolution of fissures in the coal face surrounding rocks and the pattern of accumulation and movement of pressure relieving mine gas. This is regarded as providing technical support to an effective solution to gas inflow in coal mining faces.