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重塑软黏土固结排水三轴试验和本构模型研究

张勇, 饶淳淳, 董皇帅, 胡敏云

张勇, 饶淳淳, 董皇帅, 胡敏云. 重塑软黏土固结排水三轴试验和本构模型研究[J]. 岩土工程学报, 2019, 41(S2): 101-104. DOI: 10.11779/CJGE2019S2026
引用本文: 张勇, 饶淳淳, 董皇帅, 胡敏云. 重塑软黏土固结排水三轴试验和本构模型研究[J]. 岩土工程学报, 2019, 41(S2): 101-104. DOI: 10.11779/CJGE2019S2026
ZHANG Yong, RAO Chun-chun, DONG Huang-shuai, HU Min-yun. Consolidated drained triaxial tests and constitutive model for reconstituted soft clay[J]. Chinese Journal of Geotechnical Engineering, 2019, 41(S2): 101-104. DOI: 10.11779/CJGE2019S2026
Citation: ZHANG Yong, RAO Chun-chun, DONG Huang-shuai, HU Min-yun. Consolidated drained triaxial tests and constitutive model for reconstituted soft clay[J]. Chinese Journal of Geotechnical Engineering, 2019, 41(S2): 101-104. DOI: 10.11779/CJGE2019S2026

重塑软黏土固结排水三轴试验和本构模型研究  English Version

基金项目: 国家自然科学基金项目(41302229,51878616)
详细信息
    作者简介:

    张 勇(1981— ),男,博士,副教授,主要从事软土工程力学特性等方面的教学和科研。E-mail: zhangyong@zjut.edu.cn。

    通讯作者:

    胡敏云,E-mail:huminyun@zjut.edu.cn

Consolidated drained triaxial tests and constitutive model for reconstituted soft clay

  • 摘要: 通过室内固结排水三轴剪切试验,分析了重塑饱和软黏土在固结排水条件下三轴剪切过程中的力学特性和变形特征。基于硬化参量与应力路径无关的基本假定,根据曲线积分中的格林公式,构建了新的屈服方程,并建立了一个适合于重塑饱和软黏土的本构模型。采用MATLAB软件编写计算程序,利用新建的重塑软黏土本构模型,对所采用的重塑软黏土和文献报道的Fujinomori黏土的固结排水三轴剪切试验进行理论计算。将试验结果和理论计算结果进行对比,可得出结论:新建的本构模型理论计算结果与重塑饱和软黏土的固结排水三轴试验结果较为吻合,可以较好地描述重塑软黏土在排水条件下的强度与变形特征。
    Abstract: The consolidated drained triaxial tests are carried out to study the mechanical properties and the deformation characteristics of reconstituted saturated soft clay under drained condition. Based on the assumption that the hardening parameter is independent of the stress path, a new yield equation is proposed by adopting the Green’s formula for curve integral. Therefore, a constitutive model is established for the reconstituted saturated soft clay. For the purpose of validation, the programming calculations by MATLAB, which take use of the new constitutive model, are compared to the test results from both the studied reconstituted soft clay and Fujinomori clay, which is reported in the literature. It is shown that the new constitutive model can describe well the strength behaviors and deformation characteristics of reconstituted saturated soft clay under drained condition. And, the theoretical calculations are in good consistence with the test results.
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  • 期刊类型引用(1)

    1. 李佳,曹芬. 三门峡地区湿陷性黄土结构体特性分析. 河南科技. 2022(15): 107-110 . 百度学术

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出版历程
  • 收稿日期:  2019-04-29
  • 发布日期:  2019-07-19

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