土的抗剪强度参数概率分布的类型影响着滑坡防治工程可靠度分析的结果。根据三峡库区重庆市有代表性的滑坡滑带土试验数据,对滑带土抗剪强度参数c、φ值进行统计分析,利用χ2检验法进行拟合,从而得出c、φ值的概率密度函数以及他们的概率分布形式:c值服从正态分布,φ值服从对数正态分布。以此可以对三峡库区地质灾害的治理与防治工作起到指导作用。 The types of probability distribution of soil shear strength parameters affect the results of landslide control engineering reliability analysis. According to the representative test data of landslide zone soil in the Three Gorges reservoir area of ​​Chongqing, the shear strength parameters c and φ of the soil zone are statistically analyzed and fitted by χ2 test to get the probability of c and φ The density function and their probability distribution form: c value obeys normal distribution and φ value obeys lognormal distribution. In this way, it can play a guiding role in the management and prevention of geological disasters in the Three Gorges reservoir area.