重庆地区滑带土抗剪强度参数概率统计分析  

Probability Distribution Statistics Analysis of Shear Strength Parameters in Sliding Zone Along Horizontal-Stratum Landslides in Chongqing City

作　　者：张红琼[1] 

机构地区：[1]三峡大学土木水电学院

出　　处：《灾害与防治工程》2007年第1期62-67,共6页Disaster and Control Engineering

摘　　要：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 probability distribution type of soil strength parameters affects the results of reliability analysis of landslide prevention project.The paper concluded the representative data of investigation of Chongqing landslides in Three Gorges reservoir area.Based on statistical analysis of shear strength parameters c and φ in Chongqing area and fitting of probability density function from χ2 check method,it draws the conclusion form of cohesion c obeys the normal distribution and φ obeys lognormal distribution....

关 键 词：岩土体性质 抗剪强度参数 概率分布 正态分布 对数正态分布 

分 类 号：P642.22[天文地球—工程地质学]