岩土力学2009，Vol.30Issue(11)：3307-3312,6.
考虑各向异性的软黏土扰动状态本构模型
Modelling disturbed state and anisotropy of natural soft clays
摘要
Abstract
Based on tests, electrical resistivity indexes are taken to reflect the changes in soil structures and define the disturbed variable, which is convenient, continuous, economical and practicable. Meanwhile, disturbed function is built by the results of undrained triaxial shear tests and electrical resistivity tests. Additionally, rotational hardening parameter is taken to describe disturbed state of natural soft clays; accordingly, a disturbed state concept constitutive model taking into account stress-induced anisotropy for soft clays is presented. As a result, the traditional methods measuring disturbed variable and establishing disturbed function may be optimized, and the applicability and accuracy of model may be improved. Results from undrained triaxial shear tests show that the model can describe the stress-strain characteristics fairly well and could be applied to practice.关键词
软黏土/电阻率指标/各向异性/扰动状态概念/本构模型Key words
soft clay/ electrical resistivity index/ anisotropy/ disturbed state concept/ constitutive model分类
建筑与水利引用本文复制引用
于小军,施建勇,徐杨斌..考虑各向异性的软黏土扰动状态本构模型[J].岩土力学,2009,30(11):3307-3312,6.基金项目
江苏省自然科学基金项目(No.BK2007070). （No.BK2007070）
