论文部分内容阅读
根据煤体变形和瓦斯渗流的基本理论,同时考虑温度效应对瓦斯赋存和煤体变形的影响,建立了含瓦斯煤解吸、吸附作用的热流固耦合模型.应用该模型模拟研究了初始温度不同的煤层在瓦斯抽采过程中煤层温度的演化规律及抽采孔周围瓦斯压力和瓦斯含量的变化规律,其结果对于深入理解瓦斯抽采作用机理并采取相应的瓦斯预防和控制措施具有重要的理论和实践意义.
According to the basic theory of coal deformation and gas seepage, considering the influence of temperature effect on gas occurrence and coal deformation, a thermo-fluid-solid coupling model of gas coal desorption and adsorption was established.Using this model to simulate the influence of initial temperature The evolution law of coal seam temperature during coal gas drainage and the variation law of gas pressure and gas content around gas extraction hole. The results have important theoretical basis for understanding gas drainage mechanism and adopting corresponding gas prevention and control measures And practical significance.