【摘要】 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.更多还原

【Abstract】 According to the basic theory of deformation and gas seepage, at the same time, considering the effect of temperature on gas occurrence and the influence of the deformation, this study established the coal containing gas description, adsorption of heat flow fluid and solid coupling model. The model was used to study the temperature of different coal seams in the process of gas extraction from coal seam around the evolution rules of temperature and extraction hole gas pressure and the change rule of gas content. The results have important theoretical and practical meaning for the gas extraction mechanism, and take the corresponding gas prevention and control measures.更多还原