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Evolution of soil hydraulic properties under saturated conditions.

Périard, Yann; Gumière, Silvio José; Long, Bernard; Rousseau, Alain N.; Caron, Jean (2015). Evolution of soil hydraulic properties under saturated conditions. In: 2nd International Conference on Tomography of Materials and Structures - ICTMS 2015, 29 juin-3 juillet 2015, Québec, Canada.

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Résumé

Knowledge of soil hydraulic properties are essential for water flow and solute transport modeling in the vadose zone. These properties are often established assuming the soil is a nondeformable (rigid) porous media in both time and space. However, under real conditions such as those of agricultural systems, the soil is constantly exposed to external stresses induced by farm machinery and wetting and drying conditions leading to volumetric strain and, consequently, non-invariant soil hydraulic properties. The main objective of this work was to propose a methodological framewotk to predict the evolution of the hydraulic properties of a soil sample undergoing hydroconsolidation under saturated conditions. For this study, a cylindrical sandy soil sample was characterized by tomodensitometry during the consolidation process. The results showed a good estimation of the evolution of the soil hydraulic properties. The proposed methodological framework provides a realistic description of water flow through the soil system during hydroconsolidation, a physical process experienced by artificially drained and irrigated soils in carnberry production.

Type de document: Document issu d'une conférence ou d'un atelier
Mots-clés libres: sol; propriétés hydrauliques
Centre: Centre Eau Terre Environnement
Date de dépôt: 18 nov. 2020 21:27
Dernière modification: 18 nov. 2020 21:27
URI: http://espace.inrs.ca/id/eprint/4332

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