Concept

Compactage de sol

Publications associées (47)

Using the raindrop size distribution to quantify the soil detachment rate at the laboratory scale

David Andrew Barry, Alexis Berne, Seifeddine Jomaa, Joël Jaffrain

Rainfall simulators are beneficial tools for studying soil erosion processes and sediment transport for different circumstances and scales. They are useful to better understand soil erosion mechanisms and, therefore, to develop and validate process-based e ...

2010

Explaining thermal failure in saturated clays

Lyesse Laloui, Bertrand François

Failure conditions in soils at elevated temperatures appear to be strongly dependent on the history of the application of stress and temperature. Four cases of such history leading to various modes of failure are identified and interpreted in terms of Ther ...

2009

Time domain simulation of soil-foundation-structure interaction in non-uniform soils

Matthias Preisig

Presented here is a numerical investigation of the influence of non-uniform soil conditions on a prototype concrete bridge with three bents (four span) where soil beneath bridge bents are varied between stiff sands and soft clay. A series of high-fidelity ...

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

ACMEG-TS: A constitutive model for unsaturated soils under non-isothermal conditions

Lyesse Laloui, Bertrand François

This paper introduces an unconventional constitutive model for soils which deals with a unified thermo-mechanical modelling for unsaturated soils. The relevant temperature and suction effects are studied in light of elasto-plasticity. A generalized effecti ...

2008

Assessment of structural evolution of aggregated soil using neutron tomography

Lyesse Laloui, Laurent Vulliet, Azad Koliji

The advanced non-destructive method of neutron tomography, together with image analysis, is used to evaluate the structural evolution of an aggregated soil during one-dimensional compression tests. Aggregation of primary particles is a commonly observed ph ...

American Geophysical Union2008

Seepage and settlement monitoring for earth embankment dams using fully distributed sensing along optical fibers

Luc Thévenaz, Yao Zhou, Pingyu Zhu

A method for seepage and settlement monitoring in earth embankment dams using fully distributed sensing along optical fibres is proposed. A model is developed for simulating and monitoring seepage and settlement systems. This model relates the strains and ...

SPIE2008

Embedded Shape-Memory Alloy Wires for Improved Performance of Self-Healing Polymers

Véronique Michaud, Eva Kirkby

We report the first measurements of self-healing polymers with embedded shape memory alloy (SMA) wires. The addition of SMA wires shows improvements of healed peak fracture loads by up to a factor of 1.6, approaching the performance of the virgin material. ...

2008

Numerical studies on soil moisture distributions in heterogeneous catchments

Andrea Rinaldo, Gianluca Botter

[1] The paper deals with numerical studies of basin-scale dynamics of soil moisture in arbitrarily heterogeneous conditions (i.e., in presence of heterogeneity of climate, soil, vegetation and land use). Its relevance stems from comparative analysis of the ...

2007

Theoretical Analysis of Fluid Inclusions for In Situ Soil Stress and Deformation Measurements

Dani Or

In situ determination of stress, strength, and deformation of soils for direct assessment of trafficability and susceptibility to compaction has been a long-standing problem in soil mechanics and agricultural engineering. Despite considerable progress in d ...

2006

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