Non-Linear and Elasto-Plasticity Consolidation Models of Unsaturated Soil and Applications
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摘要: 把作者最近提出的非饱和土的增量非线性本构模型及由作者改进的Alonso等人提出的非饱和土弹塑性模型引入陈正汉建立的非饱和土的固结理论,得到非饱和土的非线性固结模型和弹塑性固结模型,设计了有关程序,求解了地基在分级加载条件下的固结过程和塑性区的动态扩展,从而把非饱和土固结问题的研究推到了一个新水平。Abstract: The non-linear constitutive model suggested by the authors and the Alonso.s elasto-plasticity model of unsaturated soil modified by the authors are introduced into the consolidation theory of unsaturated soil proposed by CHEN Zheng-han,and the non-linear and the elasto-plasticity consolidation models of unsaturated soil are obtained.Programs related to the two consolidation models are designed,and a 2-D consolidation problem of unsaturated soil is solved using the programs,the consolidation process and the development of plastic zone under multi-grade load are studied.The above research develops the consolidation theory of unsaturated soil to a new level.
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Key words:
- unsaturated soil /
- non-linear /
- elasto-plasticity /
- consolidation /
- finite element method
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