土坡稳定性可靠度分析  

Analysis of Reliability Index in Slope Stability

作　　者：张智洪[1] 郑红娟[1] 

机构地区：[1]重庆交通大学河海工程学院,重庆400074

出　　处：《重庆交通大学学报（自然科学版）》2007年第B10期65-69,98,共6页Journal of Chongqing Jiaotong University(Natural Science)

摘　　要：结构的可靠度指的是结构或构件在规定的时间内,在规定的条件下具备规定功能的概率.JC法是目前一种主要的计算可靠度的方法,它适用于随机变量为任意分布下结构可靠指标的求解.介绍了结构可靠度计算的JC法的具体方法、迭代计算过程及其在土坡稳定性计算中的应用.建立了土坡稳定性可靠度分析的基本模型,并附以工程实例,用Excel进行迭代计算,验证了结构可靠度JC法在土坡稳定性分析中的可靠性及高精度.As a prime means of analysis of reliability index,JC method has been adaptable to calculate the reliability index whose random variable distributes freely.The concrete steps and iterative computing process of JC method are introduced and applied to analyze the reliability index in slope stability.The engineering example verifys the feasibility and the high precision of the JC method which has been used in the analysis of reliability index in slope stability under the model analysis and iterative computation through the soft ware of Excel.

关 键 词：土坡稳定 JC法 可靠指标β 可靠度 失效概率 

分 类 号：TU3[建筑科学—结构工程]