摘要
考虑结构性粘土的本构模型研究中存在的问题 ,引入了DesaiCS的扰动状态概念 ,并对关键参数———扰动函数进行了扩展 ,增加了土体体积应变的影响 ,建立了结构性粘土的弹塑性扰动状态本构模型 .最后通过三轴不排水剪切试验对模型进行了检验 ,结果表明该模型反映了土体的变形特征 ,说明在类似条件下能较好的满足工程实际的要求 .
In view of the problem of constitutive model study for structural clay, the disturbed state concept defined by Desai C S is introduced. The effect of volumetric strain of soils is emphasized by extending the definition of key parameter as disturbed function. Then an elastic-plastic disturbed state constitutive model of structural clay is established. Finally, triaxial undrained shear tests show that the model can basically reflect the deformation of soils and is satisfied with application in similar condition.
出处
《固体力学学报》
CAS
CSCD
北大核心
2004年第2期191-197,共7页
Chinese Journal of Solid Mechanics
基金
国家自然科学基金 ( 4 0 172 0 92 )
国家博士后科学基金 ( 2 0 0 3 0 3 42 76)资助
