Publications de Angelica Tuttolomondo

Evolution of water content and suction of Opalinus Clay from recovery at the drilling site to handling in the laboratory

Lyesse Laloui, Alessio Ferrari, Angelica Tuttolomondo

Advanced geotechnical engineering applications, such as shale gas extraction, CO2 geological sequestration, and geological radioactive waste storage, often involve various types of shales located at significant depths. Shales exhibit mechanical properties ...

Pergamon-Elsevier Science Ltd2024

Pore-pressure coefficients for unsaturated soils: generalized effective stress approach

Lyesse Laloui, Alessio Ferrari, Angelica Tuttolomondo

Geotechnical problems with total stress changes occurring rapidly relative to the soil consolidation time can be conveniently addressed using an effective stress-based approach. For saturated states, analytical formulations of pore-pressure coefficients ad ...

CANADIAN SCIENCE PUBLISHING2023

Pore-pressure coefficients for unsaturated soils: Generalised effective stress approach

Lyesse Laloui, Alessio Ferrari, Angelica Tuttolomondo

2023

Effective stress concept for mechanical modeling of clays under different environmental conditions

Lyesse Laloui, Alessio Ferrari, Angelica Tuttolomondo

EDP Sciences2022

A generalised water retention model with soil fabric evolution

Lyesse Laloui, Angelica Tuttolomondo, Yafei Qiao, Xingbang Lu

This paper introduces a novel soil water retention curve model that considers two different mechanisms of water retention –namely capillarity and adsorption – and their evolution with soil fabric along a generalized stress path. The model is formulated bas ...

2021

Generalized effective stress concept for saturated active clays

Lyesse Laloui, Alessio Ferrari, Angelica Tuttolomondo

Experimental evidence shows that changes in pore-water chemistry can significantly affect the mechanical behavior of saturated active clays. Despite this evidence, how the chemical composition of the pore water can be considered in effective stress definit ...

2021

Effective stress for unsaturated active clays and in-situ effective stress estimation methodology

Angelica Tuttolomondo

The complexity of the mechanics of active clays and, more generally, of geomaterials with clay minerals, under saturated and unsaturated conditions, still provides relevant scientific challenges today. Equally relevant challenges are the understanding of t ...

EPFL2021

An extended generalized effective stress for active clays

Lyesse Laloui, Alessio Ferrari, Angelica Tuttolomondo

An effective stress concept for active clays is formulated to improve the modelling of these materials under a variety of environmental conditions. In particular, the mechanical effects induced by a change in the chemical potential of pore water associated ...

EDP Sciences2020

An Effective Stress Framework for Clayey Geomaterials Including a Chemical-Dependent Variable

Lyesse Laloui, Alessio Ferrari, Angelica Tuttolomondo

Experimental evidence shows that the chemical composition of the liquid inside the pores and its variation over time can have significant implications on the mechanical and hydraulic behavior of clayey geomaterials. The magnitude of these implications depe ...

2019

On the definition of an effective stress for shales

Lyesse Laloui, Alessio Ferrari, Angelica Tuttolomondo

Energy-related engineering applications involving shales pose ever-increasing challenges for the constitutive modelling of these geomaterials. The present work proposes a new definition of effective stress developed by using a thermodynamic approach associ ...

2019