Publications de Valentina Favero

L’importance des Jeunes Professionnels dans l’ingénierie des barrages en Suisse

En Suisse, l’hydroélectricité est la principale source d’énergie et contribue à environ 58% de la production totale. La stratégie énergétique 2050 vise à augmenter cette part au cours des prochaines décennies. Cette augmentation représente un défi pour les ...

2023

The importance of young professionals for dam engineering in Switzerland

Valentina Favero, Samuel Luke Vorlet

In Switzerland, hydropower is the main energy source and contributes to about 58.3% of the total production. The 2050 energy strategy aims to increase this share in the coming decades. This increase is a challenge for hydropower plants. The maintenance and ...

CRC Press/Balkema2023

Consolidated-undrained triaxial testing of Opalinus Clay: Results and method validation

Valentina Favero

2018

Impact of CO2 injection on the hydro-mechanical behaviour of a clay-rich caprock

Lyesse Laloui, Valentina Favero

The safe storage of CO2 in deep reservoir units requires an efficient sealing of the overlaying caprock. The acidic environment caused by the dissolution of CO2 into the pore fluid can induce changes in the microstructure of the material over the long term ...

2018

Anisotropic behaviour of Opalinus Clay through consolidated and drained triaxial testing in saturated conditions

Lyesse Laloui, Alessio Ferrari, Valentina Favero

This paper investigates the anisotropic hydro-mechanical behaviour of Opalinus Clay shale, the host material currently being considered for the construction of a nuclear waste repository in Switzerland. Consolidated and drained triaxial tests on Opalinus C ...

2018

Multiphysical behaviour of shales from Northern Switzerland

Valentina Favero

Shales are involved in energy-related applications such as the extraction of shale gas, the CO2 storage and the nuclear waste disposal. In these contexts, fundamental issues come along with the multiphysical conditions in which shales are found, where mech ...

EPFL2017

1D Compression Behaviour of Opalinus Clay

Lyesse Laloui, Alessio Ferrari, Valentina Favero

2017

Testing of the hydro-mechanical behaviour of shales

Lyesse Laloui, Alessio Ferrari, Valentina Favero

Shales are among the most commonly considered geomaterials in current energy-related geomechanical investigations, as they are involved in engineering applications such as the unconventional extraction of natural gas, CO2 sequestration and nuclear waste ge ...

Taylor & Francis2016

On the Hydro-Mechanical Behaviour of Remoulded and Natural Opalinus Clay Shale

Lyesse Laloui, Alessio Ferrari, Valentina Favero

The geo-energy sector makes use of advanced technologies such as shale gas extraction, CO2 sequestration and nuclear waste geological disposal that rely on the exploitation of shale formations. Due to the great depths involved in these applications and the ...

Elsevier Science Bv2016

An insight on the thermo-mechanical behaviour of a shale

Lyesse Laloui, Alessio Ferrari, Valentina Favero

2016

Thermo-mechanical volume change behaviour of Opalinus Clay

Lyesse Laloui, Alessio Ferrari, Valentina Favero

The paper examines the thermo-mechanical volume change behaviour of Opalinus Clay in relation to different stress conditions and overconsolidation ratio (OCR) values and evaluates the impact of temperature on some hydro-mechanical properties of this materi ...

Elsevier2016

One-dimensional Compression and Consolidation of Shales

Lyesse Laloui, Alessio Ferrari, Valentina Favero

This paper presents a comprehensive methodology for analysing the compression and consolidation behaviour of shales. An apparatus was designed to perform oedometric high-pressure tests by applying a maximum vertical total stress of 100 MPa and simultaneous ...

Elsevier2016

Hydro-mechanical Behaviour of Reconstituted and Intact Shales

Lyesse Laloui, Alessio Ferrari, Valentina Favero

2015

Water retention behaviour of shales

Lyesse Laloui, Alessio Ferrari, Valentina Favero

The involvement of shales in engineering fields such as the extraction of shale gas or the nuclear waste geological disposal is mainly driven by the low permeability and the high retention properties of these geomaterials. The high capillary forces develop ...

2014

Experimental analysis of the water retention behaviour of shales

Lyesse Laloui, Alessio Ferrari, Valentina Favero

Shales are among the most commonly considered geomaterials in current energy-related geomechanical investigations, as they are involved in engineering applications such as the unconventional extraction of natural gas, CO2 sequestration and nuclear waste ge ...

Elsevier2014

On the Fluid Retention Properties of Shales

Lyesse Laloui, Alessio Ferrari, Valentina Favero

The development of engineering activities involving shales such as the extraction of shale gas and shale oil, the nuclear waste geological storage and the sequestration of CO2, has led to an increasing interest toward the geomechanical behaviour of this ge ...

ASCE2014

On the water retention behaviour of shales

Lyesse Laloui, Alessio Ferrari, Valentina Favero

Shales are among the most considered geomaterials in current energy-related geomechanical investigations; they are involved in engineering applications such as the unconventional extraction of natural gas, CO2 sequestration and nuclear waste geological sto ...

2014

Experimental analysis of the retention behavior of shales

Lyesse Laloui, Alessio Ferrari, Valentina Favero

The analysis of the volumetric behavior and the consolidation of shales require the involved materials to be tested under high confining stresses. The paper presents the apparatuses and the techniques that have been developed recently for testing shales un ...

2013

An Insight into the Fluid Retention Capabilities of Shales

Lyesse Laloui, Alessio Ferrari, Valentina Favero

The hydro-mechanical behaviour of shales is becoming one of the most important issues in modern geomechanics, largely driven by petroleum industries (i.e., the extraction of shale gas), the sequestration of CO2 and the nuclear waste geological storage. In ...

2013