不同温压作用下煤体对甲烷吸附量及其变形的试验研究

基于温度和压力会影响煤体对甲烷吸附的这一特性，研究了煤体在不同温度和压力下对甲烷的吸附量和吸附过程中煤体的变形量，结果表明：随着温度的增加，煤体对甲烷的吸附量减小，升温对煤体的吸附能力起抑制作用|吸附甲烷后的标准煤样的轴向变形量与温度呈负相关关系，而与孔隙压呈正相关关系。在同一温度下，随着孔隙压力的增大，甲烷在煤体中的吸附量几乎呈线性关系增大|当温度为80℃时煤体发生显著的压缩变形。

Experimental Study on Adsorption Capacity and Deformation of Coal to Methane under Different Temperature and Pressure

Based on the characteristics that temperature and pressure affect the adsorption of methane on coal, the adsorption of methane on coal at different temperatures and pressures and the deformation of coal during adsorption are studied. The results show that: the adsorption of methane to coal decreased with increasing temperature. High temperature inhibited the adsorption capacity of coal; The axial deformation of the standard coal sample after adsorption of methane is negatively correlated with temperature and positively correlated with pore pressure. At the same temperature, with the increase of pore pressure, the adsorption amount of methane in the coal body increases almost linearly; when the temperature is 80 °C, the coal body undergoes significant compression deformation.