地基固结沉降随机有限元计算和可靠度分析  

The SFEM analysis and reliability assessment of consolidation settlement based on Biot consolidation theory

作　　者：郭志川[1] 刘宁[1] 

机构地区：[1]河海大学土木工程学院工程力学系,江苏南京210098

出　　处：《岩土力学》2001年第4期481-485,共5页Rock and Soil Mechanics

基　　金：高等学校骨干教师资助及南京市留学回国人员科研基金资助项目

摘　　要：基于比奥(Biot)固结理论,采用邓肯-张本构模型,考虑随机场的影响,首次给出了地基固结沉降随机有限元分析方法,并基于随机有限元对点固结沉降和差异固结沉降的可靠度进行了分析。Based on Biot consolidation theory,a stochastic finite element method for soil consolidation settlement was suggested.In this method,the influences of random fields were taken into account,Duncan-Chang's Model was used and the stochastic formulation was derived.Computational method for the reliability of both point settlement and difference settlement was presented.

关 键 词：固结沉降 随机场 随机有限元 可靠指标 地基 比奥固结理论 邓肯-张本构模型 

分 类 号：TU433[建筑科学—岩土工程]