Evaluating modified Cam clay parameters from undrained triaxial compression data using targeted optimization

被引：15

作者：

Doherty, James ^{[1
]}

Alguire, Helen ^{[2
]}

Wood, David Muir ^{[3
]}

机构：

[1] Univ Western Australia, Sch Civil & Resource Engn, Crawley, WA 6009, Australia

[2] BG&E, Perth, WA 6000, Australia

[3] Univ Dundee, Div Civil Engn, Dundee DD1 4HN, Scotland

来源：

CANADIAN GEOTECHNICAL JOURNAL | 2012年 / 49卷 / 11期

关键词：

parameter selection; optimization; Cam clay; triaxial test; soil model;

D O I：

10.1139/t2012-088

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

The widely used modified Cam clay soil model requires five soil parameters. In simulations of standard triaxial tests these parameters appear in certain combinations. An efficient and practical strategy for deriving these parameters is presented in which visual and numerical optimization techniques are used to estimate the values of these combinations in sequence. Selecting parameters using triaxial tests with stress levels similar to those expected to be important in the ground helps to ensure that the values are appropriate for the application and reduces the extent of the extrapolation required from the region of stress space explored in these tests.

引用

页码：1285 / 1292

页数：8