| 非饱和土的非线性固结模型和弹塑性固结模型及其应用 |
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| 引用本文： | 陈正汉,黄海,卢再华.非饱和土的非线性固结模型和弹塑性固结模型及其应用[J].应用数学和力学,2001,22(1):93-103. |
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| 作者姓名： | 陈正汉 黄海 卢再华 |
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| 作者单位： | 1.解放军后勤工程学院土木系, 重庆400041; |
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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。
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| 关 键 词： | 非饱和土 非线性 弹塑性 固结 有限元 |
| 文章编号： | 1000-0887(2001)01-0093-11 |
| 收稿时间： | 2000-04-18 |
Non-Linear and Elasto-Plasticity Consolidation Models of Unsaturated Soil and Applications |
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| CHEN Zheng-Han,HUANG Hai,LU Zai-hua.Non-Linear and Elasto-Plasticity Consolidation Models of Unsaturated Soil and Applications[J].Applied Mathematics and Mechanics,2001,22(1):93-103. |
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| Authors: | CHEN Zheng-Han HUANG Hai LU Zai-hua |
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| Institution: | 1.Logistical Engineering University, Chongqing 400041, P R China;2.State Key Laboratory of Frozen Soil Engineering, CAREERI, CAS, Lanzhou 730000, P R China |
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| 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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| Keywords: | unsaturated soil non_linear elasto_plasticity consolidation finite element method |
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