时间对钻孔抽采瓦斯压力的影响模拟——以高瓦斯厚煤层矿井架后采空区穿层钻孔为例

Simulation of Time Influence on Drilling Gas Drainage Pressure:Taking the Example of Layer-though Borehole of in Mined-out Area Behind Support in High-gas Thick Seam Mine

以高瓦斯厚煤层矿井-新疆豫新煤业大黄山矿为工程背景,以该矿主采工作面+735综放面为具体研究对象,通过不同时间对架后采空区穿层钻孔抽采瓦斯的压力影响进行模拟,得出了抽采时间对高瓦斯厚煤层矿井架后采空区穿层钻孔抽采瓦斯压力的影响,为后期指导架后采空区穿层钻孔抽采瓦斯及防治瓦斯超限问题提供参考。

Taking a high-gas thick seam mine, Dahuangshan Mine of Yuxin Coal Co., Ltd. in Xinjiang, as the engineering background, ＋735 fully-mechanized mining face as the research object, the influence of different time on drilling gas drainage pressure in mined-out areas behind support was simulated. The influence of the drainage time was concluded, which could guide the later drilling gas of layer-though borehole in the mined-out area behind support as well as the control and prevention of gas gauge.