Seepage of groundwater within rock fractures is widespread. The seepage conditions in the fractures can be affected by the stress and temperature conditions. Shale seepage conditions are a complicated coupling of stress and temperature. Experiments were carried out on shale samples containing three types of fractures: a single short fracture (type A), a single long fracture (type B), and symmetrical short fractures (type C). Three temperature conditions were set for type A. The coefficient C, which is defined as the ratio between the seepage pressure and the flow rate, is constant when the temperature effects are slight. Linear correlations between the coefficient C and the temperature were simulated. For type B, four confining pressures were applied using the confining pressure pump. As the confining pressure increases, the seepage pressure increases. The seepage pressure distribution is nonlinear when the flow rate increases to 6 ml/min under a confining pressure of 12 MPa. For type C, three temperature conditions with three confining pressure conditions were analyzed to determine the seepage pressure. The effects of the confining pressure on the seepage pressure are different from those of type B. Nonlinear curves occur under confining pressures of 3 MPa and 6 MPa at 50°C. The seepage pressure values at 70°C are smaller than those at 30°C and 50°C. The coefficient C contour is depicted for the experimental ranges of temperature and confining pressures. The small value region of coefficient C occurs at about 6 MPa and 50°C. The nonlinear increase in the seepage pressure in the fractures occurred when the confining pressure was larger for a single fracture and when the confining pressure was lower for double fractures.

岩石裂缝中的地下水渗漏现象很普遍。裂缝中的渗流条件会受到应力和温度条件的影响。页岩渗流条件是应力和温度的复杂耦合。对包含三种类型裂缝的页岩样品进行了实验：单个短裂缝（A 型）、单个长裂缝（B 型）和对称短裂缝（C 型）。为A型设置了三个温度条件。系数C定义为渗流压力与流量的比值，当温度影响很小时，系数C是恒定的。模拟了系数 C 和温度之间的线性相关性。对于 B 型，使用围压泵施加四个围压。随着围压的增加，渗流压力增加。在12 MPa的围压下，当流速增加到6 ml/min时，渗流压力分布是非线性的。对于C型，分析了三个温度条件和三个围压条件来确定渗流压力。围压对渗流压力的影响与B型不同。在50°C围压3 MPa和6 MPa下出现非线性曲线。70°C 时的渗流压力值小于 30°C 和 50°C 时的渗流压力值。系数 C 轮廓描绘了温度和围压的实验范围。系数 C 的小值区域出现在大约 6 MPa 和 50°C 处。