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Multi-scale study of desiccation shrinkage in granular soils

Publications associées (23)

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Mechanics of Unsaturated Geomaterials

Lyesse Laloui

An understanding of the mechanics of unsaturated geomaterials has become an important component of the background of a geo-engineer operating in various fields of geomechanics. Several geotechnical operations, such as compaction and excavation processes, a ...

John Wiley & sons2010

Investigations on water retention behaviour of deformable soils

Lyesse Laloui, Alessio Ferrari, Mathieu Nuth, Simon Salager

The trend in modern unsaturated soil mechanics is to enhance the physical understanding of the soil water retention properties. It is agreed that the retention characteristics depend on the state of compaction and are related to the deformability of the me ...

Taylor & Francis Group2010

Experimental analysis of the cyclic behaviour of Kaolin at high temperature

Lyesse Laloui, Cane Cekerevac

This paper presents the results of an experimental study related to the thermal effects on kaolin clay cyclic mobility. The thermal effects were identified by comparing the experimental results of cyclic triaxial tests performed at high temperature (90 C) ...

2010

Failure in multiphase geomaterias

Lyesse Laloui

The contributions assembled in the present volume proceed from the lectures of the 2009 ALERT Geomaterials School devoted to the Failure in the multiphase geomaterials. The multiphase behaviour of geomaterials used to be mainly considered from the point of ...

2009

Effects of crab burrows on pore water flows in salt marshes

David Andrew Barry

Macro-pores such as crab burrows are found commonly distributed in salt marsh sediments. Their disturbance on the soil structure is likely to influence both pore water flows and solute transport in salt marshes; however, the effects of crab burrows are not ...

2009

Mechanical behaviour of unsaturated aggregated soils

Azad Koliji

Particle aggregation is a commonly observed phenomenon in many types of soils, such as natural clays and agricultural soils. These soils contain porous aggregates, often separated by large, interaggregate pores. Two levels of intra- and interaggregate poro ...

EPFL2008

Thermo-plasticity of fine-grained soils at various saturation states

Bertrand François

Soil is a particulate material that may undergo irreversible strain as the relative positions of the constituent particles change. That irreversible behaviour may be induced not only by an external stress variation but also by temperature or suction change ...

EPFL2008

Simulation of Clogging Phenomena in Natural Porous Media

David Andrew Barry, Alessandro Brovelli, Flavio Malaguerra

The objective of this study is to investigate the modelling of porosity and hydraulic conductivity changes in saturated porous media induced by the biological growth in pore space. Three different relationships between porosity changes and hydraulic conduc ...

2007

Deformation of pores in viscoplastic soil material

Dani Or

Changes in soil pore volume and shape in response to internal and external mechanical stresses alter key soil hydrologic and transport properties. The extent of these changes is dependent on details of pore shape and size evolution. We present a model for ...

2006

Anisotropic nanoporous coating

Heinrich Hofmann, Laurent-Dominique Piveteau

Porous coating production, e.g. for medical implant, involves depositing first mono-layer(s) of temporary particles on surface, depositing coating(s) on particles, eliminating temporary particles forming pores, and coating fixation step NOVELTY - Producing ...

2006