力学与实践 ›› 2014, Vol. 36 ›› Issue (1): 29-32.DOI: 10.6052/1000-0879-13-351

• 应用研究 • 上一篇    下一篇

含离子类溶质黏土的C-H-M本构模型

魏德敏, 吴俊润, 刘泽佳, 招嘉良   

  1. 华南理工大学土木与交通学院, 广州510640
  • 收稿日期:2013-08-22 修回日期:2013-11-29 出版日期:2014-02-08 发布日期:2014-02-14
  • 通讯作者: 魏德敏,博士生导师,教授.从事土木工程结构防灾减灾研究.E-mail:dmwei@scut.edu.cn;刘泽佳,工学博士,副教授.从事岩土力学数值模拟及非均质材料的细观分析.E-mail:zjliu@scut.edu.cn
  • 基金资助:

    国家自然科学基金(50908089)和中央高校基金(2014ZZ0024)资助项目.

C-H-M MODEL OF CLAY CONTAINING IONIC SOLUTES

WEI Demin, WU Junrun, LIU Zejia, ZHAO Jialiang   

  1. School of Civil Engineering and Transport, South China University of Technology, Guangzhou 510640, China
  • Received:2013-08-22 Revised:2013-11-29 Online:2014-02-08 Published:2014-02-14

摘要:

在水力-力学本构模型基础上,采用化学软化公式引入孔隙水中含盐、碱类等离子类溶质对土体前期固结压力的影响,得到土体的化学-水力-力学耦合本构模型(C-H-M 模型). 根据试验结果对化学软化公式的参数进行数值拟合,通过算例验证了C-H-M 本构模型的有效性

关键词:

化学-水力-力学耦合本构模型|离子类溶质|数值模拟

Abstract:

Based on the theory of the soil hydro-mechanical coupling constitutive model, a chemical-hydromechanical coupling constitutive model (C-H-M model) of soil is proposed. In this model, the impact of salt and alkali ion solutes of the soil pore water on the preconsolidation pressure is considered by employing a chemical softening equation. A numerical simulation of the parameter in the softening equation is conducted on the basis of the experimental results. The C-H-M coupling constitutive model is validated by conducting a numerical simulation.

Key words:

chemo-hydro-mechanical constitutive model|ionic solute|computational simulation

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