Mechanisms of desiccation cracking of soil: Validation

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.


Published in:
Numerical Models In Geomechanics: Numog X, 277-282
Presented at:
10th International Symposium on Numerical Models in Geomechanics (NUMOG X), Rhodes, GREECE, Apr 25-27, 2007
Year:
2007
Publisher:
Taylor & Francis Inc, 1900 Frost Road, Suite 101, Bristol, Pa 19007 Usa
ISBN:
978-0-415-44027-1
Laboratories:




 Record created 2012-07-04, last modified 2018-03-17


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