Numerical and experimental investigation of desiccation of soil

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.


Presented at:
3rd Asian Conference on Unsaturated Soils., Nanjing, China, 21-23 April 2007
Year:
2007
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Sols
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Note: The status of this file is: EPFL only


 Record created 2007-04-25, last modified 2018-03-17

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