非饱和土本构关系及变形计算

非饱和土本构关系及变形计算 English Version

1.Geotechnical Research Institute of Hohai University Nanjing 210098 China 2.Institute of Geotechnical Engineering Zhejiang University Hangzhou 310027 China

摘要: 总结了非饱和土本构模型当前研究的新进展,包括弹性模型、巴塞罗那模型的各种改进,其它形式包含吸力的应力变量模型、膨胀土弹塑性模型、损伤力学模型、热力学模型、浸水变形计算模型等。同时总结了这些模型用于有限元计算时所要解决的问题,包括吸力的确定、矩阵的形成等。
- 非饱和土 /
- 本构关系 /
- 有限元计算
Abstract: The state of the art in the constitutive relations for unsaturated soils was summarized,including elastic models,Barcelona elastic-plastic model and its various modified forms,models using suction as stress variables,elastic-plastic models for expansive soils,damage models,thermo-mechanical models and models for wetting induced deformation.The problems related to the implementation of these models in the finite element analysis were also presented,including determination of suction and matrix formulation.
- unsaturated soils /
- constitutive relations /
- finite element analysis