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为了准确地研究钻孔抽采瓦斯过程瓦斯压力,渗透率等参数变化规律和相互影响机理,结合煤层瓦斯流动和煤体变形理论,考虑钻孔抽采过程中渗透率和孔隙度动态变化,建立了含瓦斯煤体变形的耦合模型,并与非耦合模型进行对比分析。
In order to accurately study the variation law and mutual influence mechanism of gas pressure and permeability of gas drainage during gas drainage in drilling process and considering the gas flow and coal deformation theory in coal seam and considering the dynamic change of permeability and porosity during drilling drainage, The coupled model of gas containing coal deformation was compared with the uncoupled model.