Numerical and experimental study of initiation and propagation of desiccation cracks in clayey soils

被引：35

作者：

Levatti, Hector U. ^{[1
]}

Prat, Pere C. ^{[2
]}

Ledesma, Alberto ^{[2
]}

机构：

[1] London South Bank Univ, Div Civil & Bldg Serv Engn, London, England

[2] UPC, BarcelonaTech, Dept Civil & Environm Engn, Barcelona, Spain

来源：

COMPUTERS AND GEOTECHNICS | 2019年 / 105卷

关键词：

Desiccation cracking; Hydro-mechanical coupling; Unsaturated soils mechanics; Finite element method; IMAGE-ANALYSIS; NETWORKS;

D O I：

10.1016/j.compgeo.2018.09.015

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

This paper presents the fundamentals and the mathematical formulation to study desiccation cracking in soils based on Unsaturated Soil Mechanics as well as a numerical analysis of a previous desiccation test program. The numerical approach implemented in MATLAB is used in 2D simulations on radial sections of the cylindrical specimens and in a theoretical study of the stress field in plane strain conditions. The numerical analysis, based on two stress stare variables (total net stress and suction) is consistent and in good agreement with the experimental results, including the location of cracks and time of crack initiation.

引用

页码：155 / 167

页数：13

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