中文摘要：

为探讨混煤吸附瓦斯膨胀变形与瓦斯涌出之间关系,选取典型煤与瓦斯突出矿井的原生质煤及构造煤,制作混合煤样,测定不同质量比混合煤体等温吸附特性及其吸附前后比表面积。结果表明,比表面积及吸附量在混合煤样质量比为1：1时均达到最大;混合煤样吸附前后中小孔比表面积占比之差,呈先减小后增大的变化趋势;吸附前后微孔比表面积变化与中小孔变化规律相反;根据试验结果,建立了混合煤样吸附瓦斯前后比表面积变化与孔隙膨胀应力应变之间关系的数学模型,得出混合煤样吸附前后孔隙结构变化与瓦斯涌出之间的关系。

英文摘要：

For the sake of exploring the relationship between gas autburse and deformation of coal caused by methane adsorption, experiments were carried out, protoplasm coal and structure coal mixed coal samples were involved, which were consisted of. Results show that the pore specific surface area and methane adsorption reach the maximum at mass ratio 1：1 and the former is a function of the latter. A mathematical model was built for the relationship between pore specific surface area and the expansion strain.