| 基于堆石体多重势面本构模型的混凝土面板坝应力变形分析 |
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| 引用本文： | 陈海英,刘国明.基于堆石体多重势面本构模型的混凝土面板坝应力变形分析[J].福州大学学报(自然科学版),2011,39(4):581-588. |
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| 作者姓名： | 陈海英 刘国明 |
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| 作者单位： | 福州大学土木工程学院; |
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| 基金项目： | 福建省自然科学基金资助项目(2008J0154) |
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| 摘 要： | 采用应力型多重势面模型模拟堆石体的本构关系.由于多重势面模型没有明确的屈服面,因此不存在传统意义上的加卸载判据.采用邓肯模型的加卸载准则对多重势面模型的加卸载进行判断,并依据弹塑性理论卸载时塑性刚度矩阵取为0.模型参数选择邓肯E-B模型的参数,利用自行开发的三维有限元法对金钟面板堆石坝进行应力变形分析,并与邓肯E-B模...
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| 关 键 词： | 多重势面模型 本构关系 应力变形 混凝土面板堆石坝 三维有限元 |
Stress and deformation analysis of CFRD based on the multi-potential surface model of rockfill |
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| CHEN Hai-ying,LIU Guo-ming.Stress and deformation analysis of CFRD based on the multi-potential surface model of rockfill[J].Journal of Fuzhou University(Natural Science Edition),2011,39(4):581-588. |
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| Authors: | CHEN Hai-ying LIU Guo-ming |
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| Institution: | CHEN Hai-ying,LIU Guo-ming(College of Civil Engineering,Fuzhou University,Fuzhou,Fujian 350108,China) |
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| Abstract: | The stress-type multi-potential surface model is used to simulate the constitutive relation of rockfill material.Because the multi-potential surface model lacks yield surface to judge loading and unloading,the loading and unloading criteria of Duncan-Chang model are adopted,and the plastic stiffness matrix on unloading can be taken as 0 according to elastic-plastic theory.The parameters of Duncan E-B model are used as the model ones in the paper.The stress-deformation analysis of Jinzhong CFRD with the mode... |
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| Keywords: | multi-potential surface model constitutive relation stress-deformation concrete faced rockfill dam(CFRD) 3-D FEM |
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