Publications related to Atterberg limits

Drained Clay-Pipe Interface Resistance at Low Normal Stresses and Elevated Temperatures

Offshore pipelines that transport hydrocarbons under high pressure and high temperature are usually thermally insulated to maintain an elevated temperature and prevent any heat loss to the surroundings. However, the temperatures at the outer-wall of the pi ...

AMER SOC CIVIL ENGINEERS2023

Failure mechanism of fine-grained soil-structure interface for energy piles

Lyesse Laloui, Elena Ravera

The response of the soil-structure interface can significantly affect the performance of any geotechnical structure. Thermal cycles are a new factor that influence the response to all structures that have an energy function in addition to the structural on ...

2022

Cyclic thermomechanical response of fine-grained soil-concrete interface for energy piles applications

Lyesse Laloui, Elena Ravera, Melis Sütman

Understanding the behaviour of soil-structure interfaces is critical for addressing the analysis and design of energy geostructures. In this study, the interface failure mechanism of energy piles (where a shear band is detached from the surrounding soil th ...

2020

Recent development in the multiphysical analysis and design of energy piles

Lyesse Laloui, Alessandro Francesco Rotta Loria

This study proposes an analysis of the multiphysical phenomena governing the thermo-mechanical behaviour of energy piles. The analysis is based on the results of a series of full-scale in-situ tests, laboratory experiments and numerical analyses. First, th ...

2017

Geotechnical analysis of energy piles

Lyesse Laloui, Alessandro Francesco Rotta Loria

This study proposes an analysis of the multiphysical phenomena and mechanisms governing the thermo-mechanical behaviour of energy piles. The analysis is based on the results of a series of full-scale in-situ tests, laboratory experiments and numerical anal ...

2016

Water retention behavior of deformable soils-experiment and modeling

Lyesse Laloui, Alessio Ferrari, Mathieu Nuth, Simon Salager

The paper presents an experimental and modelling approach for the soil water retention behaviour of two deformable soils. The objective is to investigate the physical mechanisms that govern the soil water retention properties and to propose a constitutive ...

Crc Press-Taylor & Francis Group2014

Desiccation shrinkage of non-clayey soils: a numerical study

Lyesse Laloui, Hervé Péron

A meso-scale model based on the evolution of the pore system and idealized as bimodal is numerically examined. A simplified evolution of the model reveals a series of characteristics that qualitatively agree with the observed macroscopic experimental findi ...

Wiley-Blackwell2013

Effects of soil stratigraphy on pore-water flow in a creek-marsh system

David Andrew Barry

In coastal marshes, low-permeability mud is often found overlying high permeability sandy deposits. A recently developed 3D creek-marsh model was used to investigate the effects of soil stratigraphy (a mud layer overlying a sandy-loam layer) on pore-water ...

2012

Fundamentals of desiccation cracking of fine-grained soils: experimental characterisation and mechanisms identification

Lyesse Laloui, Hervé Péron

This paper presents the results of a comprehensive experimental study of the desiccation of fine-grained soils. Air-drying of initially saturated soil slabs in controlled conditions is investigated, by performing three kinds of tests: free desiccation test ...

2009

Using geotypes for landslide hazard assessment and mapping: a coupled field and GIS-based method

Aurèle Parriaux, Séverine Bilgot

Switzerland is exceptionally subjected to landslides; indeed, about 10% of its area is considered as unstable. Making this observation, its Department of the Environment (BAFU) introduces in 1997 a method to realize landslide hazard maps. It is routinely u ...

Copernicus GmbH2009

Advanced hydro-mechanical coupling for unified constitutive modelling of unsaturated soils

Lyesse Laloui, Mathieu Nuth

A new unified constitutive hydro-mechanical model named ACMEG-s is formulated to improve modelling of unsaturated soils in free or constrained conditions. Indeed, due to particular mechanical and hydraulic boundary conditions, some natural and engineered f ...

Taylor & Francis2008

Experimental Investigations of Temperature and Suction Effects on Compressibility and Pre-Consolidation Pressure of a Sandy Silt

Lyesse Laloui, Bertrand François, Simon Salager

Research interest in the thermo-mechanical behaviour of unsaturated soils is growing as a result of an increasing number of geomechanical problems involving both thermal and unsaturated effects. In this framework, this paper addresses a unified thermo-mech ...

2008

Un nouveau cadre constitutif couplé pour la modélisation avancée des sols non saturés

Mathieu Nuth

Most natural and engineered soils usually exhibit a state of partial saturation in water. Indeed, fast and heavy water flowing into the soil is known to cause collapse or soil plasticization which may be at the origin of harmful settlements. The mechanical ...

2008

Thermo-plasticity of fine-grained soils at various saturation states : application to nuclear waste disposal

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

Hydraulic contacts controlling water flow across porous grains

Dani Or, Marco Stampanoni

Water flow between porous grains varies widely depending on the water distribution in contacts between grains. The hydraulic behavior of contacts varies from highly conductive when water fills the contacts to a bottleneck to flow as water pressure drops an ...

2007