对现有关于法向应力作用下单裂隙渗流的实验结果进行了系统的分析和总结,发现幂律关系(包括立方律)不足以描述单裂隙的渗流规律,并根据Sundaram等人的实验结果建立了法向应力作用下单裂隙单位水头的水流速率q与其裂隙开度b,裂隙闭合量Δb和法向应力σ之间的关系。并根据其它实验结果验证了上述关系的普适性。 The current experimental results on the single-fractured seepage under normal stress are systematically analyzed and summarized. It is found that the power-law relationship (including the cubic law) is not sufficient to describe the seepage law of a single fracture, and established according to the experimental results of Sundaram et al. The relationship between the flow rate q and the fracture opening b, the closure amount Δb and the normal stress σ of the unit head of a single fracture under the action of normal stress. According to other experimental results, the universality of the above relationship was verified.