基于非概率方法的碾压混凝土重力坝可靠度计算  

Reliability Calculation of RCC Gravity Dam Based on Non-probabilistic Method

作　　者：袁慕勇 陆廷春 徐宝松 徐彬[4] 

机构地区：[1]南京市六合区水利局,南京211500 [2]南通市通州区石港镇公共资源交易服务中心,南通226351 [3]河海大学水利水电学院,南京210098 [4]南京市水利规划设计院有限责任公司,南京210006

出　　处：《三峡大学学报（自然科学版）》2013年第6期29-33,共5页Journal of China Three Gorges University：Natural Sciences

基　　金：中央高校基本科研业务费项目(2010B14114)

摘　　要：近年来,非概率计算方法正在被广泛应用于结构可靠度计算领域,因为该方法克服了传统方法需要较多的数据以及计算参数的概率分布等缺点.采用非概率可靠度计算方法,建立碾压混凝土重力坝和基岩的非概率可靠度指标的计算模型,并进一步探讨了基于非概率的重力坝抗滑稳定失效模式及其非概率可靠度指标.结合某碾压混凝土重力坝工程,给出了实例计算分析结果,其分析结果对非概率可靠度方法用于碾压混凝土重力坝安全评估具有一定的参考价值.The probability theory and fuzzy mathematical method are used to deal with uncertain problems in traditional reliability analysis approaches.In recent years,the non-probabilistic calculation method is widely applied to structural reliability calculation domain because of it overcomes the defects of the current methods such as needing more data,probability distribution of parameters.Using the reliability calculation of nonprobabilistic method,the computing model of non-probabilistic reliability index for RCC gravity dam and bedrock is established;and further more,the gravity dam failure mode of stability against sliding and its nonprobabilistic reliability index are discussed and executed.Combining with a RCC gravity dam project,the calculation analysis results are given.They are a benefit for using the non-probabilistic reliability method in security evaluation of RCC gravity dams.

关 键 词：碾压混凝土 重力坝 非概率方法 可靠度 失效模式 

分 类 号：TV31[水利工程—水工结构工程]