A hydromechanical model for unsaturated soils based on state boundary hypersurface

被引：0
作者：
Hua, Dongjie [1 ,2 ]
Zhang, Guohua [1 ]
Liu, Ruyan [2 ]
Jiang, Qinghui [2 ]
机构：
[1] China Univ Geosci, Fac Engn, Wuhan 430074, Peoples R China
[2] Wuhan Univ, Sch Civil Engn, Wuhan 430072, Peoples R China
来源：
ACTA GEOTECHNICA | 2024年 / 19卷 / 10期
基金：
中国国家自然科学基金;
关键词：
Constitutive model; Hydromechanical; Hypersurface; Unsaturated soils; STRESS-STRAIN BEHAVIOR; WATER-RETENTION; MECHANICAL-BEHAVIOR; CONSTITUTIVE MODEL; THERMOMECHANICAL MODEL; ELASTOPLASTIC MODEL; PERMEABILITY; SATURATION; FRAMEWORK; SILT;
D O I：
10.1007/s11440-024-02390-0
中图分类号：
P5 [地质学];
学科分类号：
0709 ; 081803 ;
摘要：
This paper presents an elastoplastic model to estimate the hydromechanical behavior of unsaturated soils based on state boundary hypersurface. Through mechanical hypersurface, the influence of saturation on yield stress can be expressed in a full form rather than an incremental form. Two hydraulic hypersurfaces and one mechanical hypersurface are proposed to establish the model. Two hydraulic hypersurfaces, composed of degree of saturation, void ratio and matrix suction, define the plastic hydraulic boundary. The elastic hydraulic behavior of unsaturated soils can be represented by scanning lines between these two hydraulic hypersurfaces. The mechanical hypersurface, composed of degree of saturation, void ratio and effective stress, defines the plastic mechanical boundary. The elastic mechanical behavior of unsaturated soils can be represented by scanning lines below the mechanical hypersurfaces. A large number of laboratory tests are used to validated the proposed model, showing that it can reasonably capture important features of the hydromechanical behavior of unsaturated soils.
引用
收藏
页码：6599 / 6615
页数：17
相关论文
共 50 条
  • [31] A kinematic hardening based model for unsaturated soils considering different hydraulic conditions
    Maleki, Mohammad
    Pouyan, Hassan
    INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS, 2016, 40 (16) : 2271 - 2290
  • [32] Coupling of a water permeability function with a bounding surface hydromechanical model for unsaturated soils
    Bruno, Agostino Walter
    Johnson, Matthew J.
    GEOMECHANICS FOR ENERGY AND THE ENVIRONMENT, 2022, 32
  • [33] Structural bonding-breakage constitutive model for natural unsaturated clayey soils
    Cai, Guo-Qing
    Zhao, Cheng-Gang
    Qin, Xiao-Ming
    ACTA MECHANICA SINICA, 2010, 26 (06) : 931 - 939
  • [34] A HYDRO-MECHANICAL ELASTOPLASTIC MODEL FOR UNSATURATED SOILS
    Sun, D.
    RECENT DEVELOPMENTS OF GEOTECHNICAL ENGINEERING, 2010, : 48 - 53
  • [35] Implementation of a hydromechanical elastoplastic constitutive model for fully coupled dynamic analysis of unsaturated soils and its validation using centrifuge test results
    Bo Zhang
    Kanthasamy K. Muraleetharan
    Acta Geotechnica, 2019, 14 : 347 - 360
  • [36] Implementation of a hydromechanical elastoplastic constitutive model for fully coupled dynamic analysis of unsaturated soils and its validation using centrifuge test results
    Zhang, Bo
    Muraleetharan, Kanthasamy K.
    ACTA GEOTECHNICA, 2019, 14 (02) : 347 - 360
  • [37] An advanced UH model for unsaturated soils
    Luo, Ting
    Chen, Dong
    Yao, Yang-Ping
    Zhou, An-Nan
    ACTA GEOTECHNICA, 2020, 15 (01) : 145 - 164
  • [38] A simple hypoplastic model for unsaturated soils considering wetting collapse
    Yang, Ze-xi
    Kang, Xuan
    Wang, Shun
    Li, Dian-qing
    Hu, Ya-an
    COMPUTERS AND GEOTECHNICS, 2024, 176
  • [39] Modified Hierarchical Single-Surface Model for Unsaturated Soils
    Lv, Mengfan
    Li, Yonghui
    Guo, Yuancheng
    Islam, Md. Rajedul
    INTERNATIONAL JOURNAL OF GEOMECHANICS, 2020, 20 (10)
  • [40] A hierarchical thermo-hydro-plastic constitutive model for unsaturated soils and its numerical implementation
    Song, Xiaoyu
    Wang, Kaiqi
    Bate, Bate
    INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS, 2018, 42 (15) : 1785 - 1805
12345