Undrained stability of strip footing above voids in two-layered clays by finite element limit analysis

被引：36
|
作者：
Xiao, Yao [1 ]
Zhao, Minghua [1 ]
Zhao, Heng [1 ]
机构：
[1] Hunan Univ, Inst Geotech Engn, Changsha 410082, Hunan, Peoples R China
来源：
COMPUTERS AND GEOTECHNICS | 2018年 / 97卷
基金：
中国国家自然科学基金;
关键词：
Strip footing; Voids; Finite element limit analysis; Undrained bearing capacity; Clays; BEARING CAPACITY; TUNNELS; SOIL; FOUNDATION; BEHAVIOR; ANCHORS; LOAD;
D O I：
10.1016/j.compgeo.2018.01.005
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
Finite element limit analysis (FELA) is used to study the undrained bearing capacity of strip footing above voids in two-layered clays. Based on the FELA results, design charts and equations are provided to calculate the undrained bearing capacity factor N-s. The impact of parameters on N-s , also has been investigated, including undrained shear stress ratio of the soil, thickness of the top layer, location, size, width, height and spacing of the voids. The failure mechanisms for a single void maybe classified into three categories: roof failure, combined roof and wall failure, bearing failure without void failure.
引用
收藏
页码：124 / 133
页数：10
相关论文
共 50 条
  • [1] Undrained stability analysis of eccentrically loaded strip footing lying on layered slope by finite element limit analysis
    Wu, Gaoqiao
    Zhang, Rui
    Zhao, Minghua
    Zhou, Shuai
    [J]. COMPUTERS AND GEOTECHNICS, 2020, 123 (123)
  • [2] Undrained stability of active trapdoors in two-layered clays
    Keawsawasvong, Suraparb
    Likitlersuang, Suched
    [J]. UNDERGROUND SPACE, 2021, 6 (04) : 446 - 454
  • [3] Stability Analysis of a Two-Layered Slope with Cracks by Finite Element Limit Analysis
    Zhou, Ai-zhao
    Liu, Gang
    Huang, Xian-wen
    Jiang, Peng-ming
    Chen, Yu
    [J]. ADVANCES IN CIVIL ENGINEERING, 2020, 2020
  • [4] Undrained stability of unsupported conical slopes in two-layered clays
    Yodsomjai, Wittawat
    Keawsawasvong, Suraparb
    Thongchom, Chanachai
    Lawongkerd, Jintara
    [J]. INNOVATIVE INFRASTRUCTURE SOLUTIONS, 2020, 6 (01)
  • [5] Undrained stability of unsupported conical slopes in two-layered clays
    Wittawat Yodsomjai
    Suraparb Keawsawasvong
    Chanachai Thongchom
    Jintara Lawongkerd
    [J]. Innovative Infrastructure Solutions, 2021, 6
  • [6] Finite Element Limit Analysis of the Bearing Capacity of Strip Footing on a Rock Mass with Voids
    Xiao, Yao
    Zhao, Minghua
    Zhao, Heng
    Zhang, Rui
    [J]. INTERNATIONAL JOURNAL OF GEOMECHANICS, 2018, 18 (09)
  • [7] Undrained stability of surface strip footings above voids
    Lee, Joon Kyu
    Jeong, Sangseom
    Ko, Junyoung
    [J]. COMPUTERS AND GEOTECHNICS, 2014, 62 : 128 - 135
  • [8] Pseudostatic Analysis of Shallow Strip Footing Resting on Two-Layered Soil
    Debnath, Litan
    Ghosh, Sima
    [J]. INTERNATIONAL JOURNAL OF GEOMECHANICS, 2018, 18 (03)
  • [9] Undrained bearing capacity of ring foundations on two-layered clays
    Lee, Joon Kyu
    Jeong, Sangseom
    Shang, Julie Q.
    [J]. OCEAN ENGINEERING, 2016, 119 : 47 - 57
  • [10] Undrained seismic bearing capacity of strip footing placed on homogeneous and heterogeneous soil slopes by finite element limit analysis
    Keshavarz, Amin
    Beygi, Majid
    Vali, Ramin
    [J]. COMPUTERS AND GEOTECHNICS, 2019, 113
12345