土体邓肯-张非线性弹性模型参数反演分析  

BACK-PERFORMING ANALYSIS FOR PARAMETERS OF DUNCAN-CHANG NONLINEAR-ELASTIC SOIL MODEL

作　　者：胡应德[1] 叶枫 陈志坚[3] 

机构地区：[1]江苏省交通科学研究院 [2]无锡市公路管理处 [3]河海大学

出　　处：《土木工程学报》2004年第2期54-57,共4页China Civil Engineering Journal

摘　　要：针对邓肯 -张土体的非线性 -弹性模型 ,本文用变尺度法编制了优化程序 ,对该模型参数进行参数识别 ,结合工程算例进行验证 ,并进行了反馈分析。结果表明变尺度法是一种很好的约束优化算法 ,其收敛速度快、准确性高 。In accordance with the Duncan Chang nonlinear elastic soil model,that,the DFP method is used to draw up optimization programme for parameteric identification of the parameters in this model,it is verified combined with a calculation example of the practical engineering project,and its feed back analysis is carried out too.From final results are shown that the DFP method is a good constrained optimization calculating method with quick convergence and high accuracy,and the results of feed back analysis can conform well to the reality of engineering pratice.

关 键 词：非线性-弹性邓肯-张土体模型 变尺度法 反馈分析 

分 类 号：TU433[建筑科学—岩土工程]