| 粘弹－粘塑性软基排水预压的三维有限元分析 |
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| 引用本文： | 余志顽,赵维炳,顾吉.粘弹－粘塑性软基排水预压的三维有限元分析[J].河海大学学报(自然科学版),1995(5). |
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| 作者姓名： | 余志顽 赵维炳 顾吉 |
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| 作者单位： | Dept.of Geology and Geotechnique，Hehai Univ. |
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| 摘 要： | 将椭圆－抛物线双屈服面模型与修正的Ｋｏｒｍａｎｕｒａ－Ｈｕａｎｇ模型结合起来，提出一种粘弹－粘塑性本构模型；通过室内三轴试验测定其参数，再用于排水预压软基的三维有限元分析。计算结果与工地实测结果吻合，证明所提本构模型和分析方法是合理的和有效的。
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| 关 键 词： | 粘弹－粘塑性，本构模型，排水预压法，有限元分析 |
3-D FEM Analysis of Soft Viscoelastic/Viscoplastic Founda-tion with Drainage Preloading |
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| Yu Zhiwan,Zhao Weibing,Gu Jie.3-D FEM Analysis of Soft Viscoelastic/Viscoplastic Founda-tion with Drainage Preloading[J].Journal of Hohai University (Natural Sciences ),1995(5). |
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| Authors: | Yu Zhiwan Zhao Weibing Gu Jie |
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| Abstract: | he elastoplastic model with two elliptic-parabolic yield surfaces is combined with Modified Kormunura-Huang's Model and a new viscoelastic/viscoplastic constitu-tive model is presented in this paper.With its parameters obtained from laboratory triaxial test,the new mode is used for 3-D FEM analysis of soft foundation with drainage preloading.the good agreement in comparison of computed results with field measurements demonstrates the reasonableness and efficiency of the new constitutive modeland the analysis method. |
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| Keywords: | viscoelasticity-viscoplasticity constitutive model drainage preloading method 3-D FEM analysis |
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