A. Lloret
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View article: Evaluation of the damping ratio of compacted sodium and calcium bentonites in unsaturated conditions
Evaluation of the damping ratio of compacted sodium and calcium bentonites in unsaturated conditions Open
Bentonites are going to be part of the Engineered Barrier System (EBS) in deep geological disposal facilities for the safe disposal of spent nuclear fuel. Some of these repositories might be constructed in tectonically active locations, an…
View article: Digital image-based analysis of a small-scale dam failure during wetting
Digital image-based analysis of a small-scale dam failure during wetting Open
The use of digital images and the correlation of them in time is commonly used in geotechnical laboratory experiments to measure surface variables in a non-invasive and massive way. Digital image correlation-based methods provide a measure…
View article: New challenges in experimental unsaturated soil mechanics. Experimental upscaling of an engineered gas-permeable seal
New challenges in experimental unsaturated soil mechanics. Experimental upscaling of an engineered gas-permeable seal Open
An example of upscaling phenomena with experimental techniques is presented and discussed within an engineered seal concept for a future deep geological repository for low and intermediate radioactive waste mainly produced by the energy/me…
View article: Monitoring the role of soil hydrologic conditions and rainfall for the triggering of torrential flows in the Rebaixader catchment (Central Pyrenees, Spain)
Monitoring the role of soil hydrologic conditions and rainfall for the triggering of torrential flows in the Rebaixader catchment (Central Pyrenees, Spain) Open
Torrential flows (debris flows and debris floods) are mainly triggered by precipitation and soil hydrological processes. Most early warning systems in torrential catchments are rainfall-based. However, this approach can result in frequent …
View article: Temperature effect on the residual shear strength.
Temperature effect on the residual shear strength. Open
<p>The available strength on slip surfaces in landslide after a significant displacement and at motion is the residual strength. The residual strength depends on the soil properties including both solid skeleton (mineralogy, particle…
View article: Modeling Soil-Facing Interface Interaction With Continuum Element Methodology
Modeling Soil-Facing Interface Interaction With Continuum Element Methodology Open
Soil-facing mechanical interactions play an important role in the behavior of earth-retaining walls. Generally, numerical analysis of earth-retaining structures requires the use of interface elements between dissimilar component materials …
View article: Shear strength and yield surface of a partially saturated sandy silt under generalized stress states
Shear strength and yield surface of a partially saturated sandy silt under generalized stress states Open
This paper studies the hydromechanical behavior of a slightly compacted mixture of sand and clayey silt (30%/70%) under a generalized stress state. The experimental study focused on analyzing the yielding response and shear strength behavi…
View article: Effect of vegetation and slope orientation on water infiltration in a monitored embankment
Effect of vegetation and slope orientation on water infiltration in a monitored embankment Open
<p>Slope-mass wasting like shallow slides and surficial erosion are mostly triggered by climatic actions, where rainfall plays the most important role. The number of extreme weather events such as droughts and intense rainfalls has i…
View article: Full-scale Engineered Barriers Experiment. Updated Final Report 1994-2004
Full-scale Engineered Barriers Experiment. Updated Final Report 1994-2004 Open
FEBEX has the multiple objective of demonstrating the feasibility of manufacturing, handling and assembling the engineered barriers and of developing numerical models and codes for assessment of the thermohydro-mechanical and thermo-hydro-…
View article: FEBEX. Bentonite: origin, properties and fabrication of blocks.
FEBEX. Bentonite: origin, properties and fabrication of blocks. Open
The aim of the FEBEX (Full-scale Engineered Barriers\n\t\t\t\t Experiment) Project is to study the behavior of\n\t\t\t\t the near field components of a high-level radioactive\n\t\t\t\t waste (HLW) repository in crystalline rock, in\n\t\t\t…
View article: Effect of climate change on slope stability: a numerical analysis using predictions of the Catalan Pyrenees
Effect of climate change on slope stability: a numerical analysis using predictions of the Catalan Pyrenees Open
The effect of climate change on soil loss processes in mountainous areas represents a current and critical problem. In this work, this issue is addressed through the analysis of the stability of different types of slopes subjected to clima…
View article: Slope Orientation and Vegetation Effects on Soil Thermo-Hydraulic Behavior. An Experimental Study
Slope Orientation and Vegetation Effects on Soil Thermo-Hydraulic Behavior. An Experimental Study Open
The stability and erosion of natural and man-made slopes is influenced by soil-vegetation-atmosphere interactions and the thermo-hydro-mechanical slope conditions. Understanding such interactions at the source of slope mass-wasting is impo…
View article: Impacts of future land cover and climate changes on landslide susceptibility. Results obtained from regional-scale modelling in the Pyrenees.
Impacts of future land cover and climate changes on landslide susceptibility. Results obtained from regional-scale modelling in the Pyrenees. Open
<p>Future environmental changes will strongly affect the occurrence of rainfall-induced landslides in mountainous regions. In our ongoing study, we focus on the effects of climate changes as well as land use and land cover (LULC) cha…
View article: Rainfall and soil moisture conditions for the triggering of torrential flows at the Rebaixader catchment (Central Pyrenees)
Rainfall and soil moisture conditions for the triggering of torrential flows at the Rebaixader catchment (Central Pyrenees) Open
<p>Torrential flows, like debris flows and debris floods, can mobilize large volumes at high velocities in mountainous regions. Therefore, they represent an important erosional process and a significant hazard towards infrastructures…
View article: Mechanical behavior of an unsaturated clayey silt: an experimental and constitutive modelling study
Mechanical behavior of an unsaturated clayey silt: an experimental and constitutive modelling study Open
This paper reports an experimental study and subsequent constitutive modelling focused on the stress-strain and volumetric responses during deviatoric stress application of a partially saturated clayey silt. The material was statically and…
View article: Monitoring of a Full-Scale Embankment Experiment Regarding Soil–Vegetation–Atmosphere Interactions
Monitoring of a Full-Scale Embankment Experiment Regarding Soil–Vegetation–Atmosphere Interactions Open
Slope mass-wasting like shallow slides are mostly triggered by climate effects, such as rainfall, and soil–vegetation–atmosphere (SVA) interactions play a key role. SVA interactions are studied by a full-scale embankment with different ori…
View article: Vertical Facing Panel-Joint Gap Analysis for Steel-Reinforced Soil Walls
Vertical Facing Panel-Joint Gap Analysis for Steel-Reinforced Soil Walls Open
This paper reports the results of a numerical parametric study focused on the prediction of vertical load distribution and vertical gap compression between precast concrete facing panel units in steel-reinforced soil walls ranging in heigh…
View article: Anisotropic behaviour of compacted clayey silt subjected to hydromechanical paths
Anisotropic behaviour of compacted clayey silt subjected to hydromechanical paths Open
\nCompaction induces anisotropy on soil deformational response due to preferential straining associated with the fabrication process. An experimental insight into the stress-strain response of Barcelona clayey silt is provided here. The ma…
View article: Hydro-mechanical behaviour of sandy silt under generalised stress conditions
Hydro-mechanical behaviour of sandy silt under generalised stress conditions Open
This paper presents results on the deformation response of an artificially prepared sand-silt mixture in a hollow cylinder apparatus. The wetting stage was performed under constant mean net stress (p¿=200 kPa) and deviatoric stress (q=200 …