为研究温度对煤样瓦斯渗透率的影响,采用含瓦斯煤岩热-流-固耦合三轴渗流试验装置,开展相应试验。结果表明:煤样渗透率随温度的升高呈S型下降趋势,具体可分为缓慢下降、加速下降、减速下降、二次加速下降、平缓等5个阶段;载荷作用下煤样的体积应变随温度升高而增大,变化过程可以分为上升-减缓-再上升-再减缓4个阶段,与渗透率随温度变化过程相对应。 In order to study the effect of temperature on the gas permeability of coal samples, a thermal-fluid-solid coupled three-axis seepage test device with gas coal and rock was adopted to carry out corresponding experiments. The results show that the permeability of coal sample shows a S-shaped downward trend with increasing temperature, which can be divided into five stages: slow decline, accelerated decline, slowed down, secondary accelerated decline and gentle. The volume strain With increasing temperature, the process of change can be divided into rising - slowing - then rising - and then slow down four stages, and the permeability changes with the temperature corresponding to the process.