Mechanisms of desiccation cracking of soil: Validation

被引：0

作者：

Peron, H. ^{[1
]}

Hu, L. B. ^{[2
]}

Laloui, L. ^{[1
]}

Hueckel, I. ^{[2
]}

机构：

[1] Ecole Polytech Fed Lausanne, Soil Mech Lab, CH-1015 Lausanne, Switzerland

[2] Duke Univ, Dept Civil & Environm Engn, Durham, NC 27706 USA

来源：

NUMERICAL MODELS IN GEOMECHANICS: NUMOG X | 2007年

基金：

瑞士国家科学基金会; 美国国家科学基金会;

关键词：

D O I：

暂无

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

Mechanisms of shrinkage and the conditions leading to cracking of drying soils are addressed. An elastic formulation of the hydro-mechanical drying problem is presented. It relies on the analogy which can be drawn between the desiccation process and thermo-elasticity. The validity of the analogy is discussed in the light of finite element simulations of air drying experiments on a rectangular soil slab resting on a substrate. Two kinds of tests are dealt with: free desiccation and substrate constrained desiccation tests, with different kinematic boundary conditions. The discussed model is able to reproduce some of the experimental observations.

引用

页码：277 / +

页数：2

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