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横观各向同性土的三维强度准则

路德春, 梁靖宇, 王国盛, 杜修力

路德春, 梁靖宇, 王国盛, 杜修力. 横观各向同性土的三维强度准则[J]. 岩土工程学报, 2018, 40(1): 54-63. DOI: 10.11779/CJGE201801004
引用本文: 路德春, 梁靖宇, 王国盛, 杜修力. 横观各向同性土的三维强度准则[J]. 岩土工程学报, 2018, 40(1): 54-63. DOI: 10.11779/CJGE201801004
shu
LU De-chun, LIANG Jing-yu, WANG Guo-sheng, DU Xiu-li. Three-dimensional strength criterion for transverse isotropic geomaterials[J]. Chinese Journal of Geotechnical Engineering, 2018, 40(1): 54-63. DOI: 10.11779/CJGE201801004
Citation: LU De-chun, LIANG Jing-yu, WANG Guo-sheng, DU Xiu-li. Three-dimensional strength criterion for transverse isotropic geomaterials[J]. Chinese Journal of Geotechnical Engineering, 2018, 40(1): 54-63. DOI: 10.11779/CJGE201801004
shu

横观各向同性土的三维强度准则  English Version

  • 北京工业大学城市与工程安全减灾教育部重点实验室,北京 100124

基金项目: 国家自然科学基金项目（51522802,51421005,51538001,51778026）; 北京市自然科学基金重点项目（8161001）
详细信息
    作者简介:

    路德春(1977-),男,教授,博士生导师,主要从事岩土材料的力学特性与本构理论、岩土地震工程等方面的教学和科研工作。E-mail:dechun@bjut.edu.cn。

    通讯作者:

    杜修力，E-mail：duxiuli@bjut.edu.cn

  • 中图分类号: TU431

Three-dimensional strength criterion for transverse isotropic geomaterials

  • Key Lab of Urban Security and Disaster Engineering, Ministry of Education, Beijing University of Technology, Beijing 100124, China

摘要

    摘要
  • 摘要: 横观各向同性土体的强度规律包括两个方面：偏平面上的强度曲线畸变和大主应力作用面与沉积面相对夹角δ 方向上的强度参数变化。当前对横观各向同性材料强度准则的研究主要集中在反映主应力与沉积面垂直条件下偏平面上的强度规律,对方向角δ 方向上的强度规律研究还不完善。基于微观结构张量法,通过引入滑动面的概念,以大主应力垂直作用于水平沉积面时应力空间与物理空间重合为基准,利用三维滑动面与沉积面之间的相对位置关系,并综合方向角δ 方向上的强度变化规律,提出了三维横观各向同性强度参数η n。将其与M-N强度准则相结合,得到了横观各向同性土的三维强度准则。所得强度准则考虑了主应力与沉积面绕某一主应力轴旋转过程中偏平面强度曲线的变化,综合地反映了横观各向同性土体的强度规律。
    Abstract: The strength characteristic of the transverse isotropic soil include two aspects. On one hand, the strength curves are not symmetric around the three principal stress axes on deviatoric plane. On the other hand, the strength parameter varies with the included angle δ between the acting plane of the major principal stress and the depositional plane. The existing studies about the strength of transverse isotropic materials are immature, especially the strength description of the included angle δ direction. The concept of mobilized plane is introduced into a method that considers the microstructural tensor. Based on the coincidence of the stress space with the physical space, the relative position between the 3D mobilized plane and the depositional plane is analyzed. Then a 3D strength parameter η n is proposed by considering the change rules of included angle δ direction. The transverse isotropic strength criterion is proposed by marrying the 3D strength parameter to the Matsuoka-Nakai strength criterion. The proposed transverse isotropic strength criterion is able to describe the distortion of the strength curves on deviatoric plane and the non-monotonic rule with respect to the included angle δ comprehensively.
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    • 参考文献(36)
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出版历程
  • 收稿日期:  2016-10-09
  • 发布日期:  2018-01-24

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