邓肯-张模型参数敏感性分析与控制变形研究  

ANALYSIS OF PARAMETERS SENSITIVITY OF DUNCAN-CHANG MODEL AND STUDY ON THE CONTROLLING DEFORMATION

作　　者：张继周[1] 缪林昌[1] 王华敬[1] 

机构地区：[1]东南大学岩土工程研究所,南京210096

出　　处：《工业建筑》2008年第3期75-79,共5页Industrial Construction

基　　金：国家自然科学基金资助项目(50478072)

摘　　要：基于Biot固结理论,采用邓肯-张本构模型,用有限元对某高速公路路基进行大量非线性有限元分析,得出邓肯-张模型中8个参数对计算结果的不同敏感度;基于参数的不同敏感性,对路基设计中变形控制的相应措施进行讨论,对参数的测试和工程计算具有指导意义,同时也对高速公路控制变形设计具有参考价值。Based on Biot consolidation theory and adopting Duncan-Chang model, a lot of nonlinear finite element calculations have been performed on a calculating case. The different sensitivities of eight parameters of Duncan-Chang model have been analyzed. At the same time, it is discussed corresponding measures of the design of controlling embankment foundation deformation, which has practical and significant function for parameters testing and the design of controlling embankment foundation deformation.

关 键 词：固结沉降 有限元 邓肯-张模型 参数敏感性 变形控制 

分 类 号：U416.1[交通运输工程—道路与铁道工程]