Exploració per autor "Vaunat, Jean"
Ara es mostren els items 49-68 de 89
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Impermeable membranes for slab-track settlement mitigation
(2018-08)
Article
Accés obertA series of numerical simulations is used to explore the effect of the geometrical disposition of impermeable membranes in the overall performance of slab-track railway earthworks, with particular reference to the generation ... -
In situ behaviour of a stiff layered clay subject to thermal loading: Observations and interpretation
(2007-03)
Article
Accés obertThe paper presents an interpretation of an in situ heating test carried out on Opalinus clay in the Mont Terri underground laboratory. Opalinus clay is a stiff, strongly bedded, Mesozoic clay of marine origin. When subjected ... -
In situ behaviour of opalinus clay under thermal loading
(European Association of Geoscientists & Engineers (EAGE), 2012)
Text en actes de congrés
Accés restringit per política de l'editorial -
In-situ monitoring of slope mass-wasting: examples from the Pyrenees
(International Centre for Numerical Methods in Engineering (CIMNE), 2017)
Text en actes de congrés
Accés obertSlope mass-wasting triggered by rainfall is a complex phenomenon and representsan important hazard in most mountainous regions. In-situ monitoring of the involved processes is difficult due to harsh environmental conditions ... -
Is the degree of saturation a good candidate for Bishop’s X parameter?
(CRC Press, 2011)
Text en actes de congrés
Accés restringit per política de l'editorialIn unsaturated soil mechanics, the quest for an effective stress playing the same role as Terzaghi’s effective stress does for saturated soils has introduced a long standing debate, dating back to the 1960s. Several ... -
Marco teórico para la modelación numérica de arcillas blandas estructuradas
(Sociedad Mexicana de Ingeniería Geotécnica (SMIG), 2021)
Text en actes de congrés
Accés restringit per política de l'editorialA partir de la combinación de teorías existentes, se presenta un marco teórico para la modelación numérica de arcillas blandas estructuradas. La formulación toma en cuenta, de forma natural, fenómenos dependientes del ... -
Modelling a hydration and heating column test on unsaturated bentonite using a double-porosity approach
(EDP Sciences, 2023)
Article
Accés obertA controlled re-saturation of a heated 50 cm long column made of MX-80 bentonite pellets in the CIEMAT laboratory facilities (Madrid, Spain) has been running for 10 years (2011-2021). The experimental data on the saturation ... -
Modelling claystone degradation under freezing and thawing cycles
(Institute of Materials, Minerals and Mining (IOM3), 2023)
Text en actes de congrés
Accés restringit per política de l'editorialClaystone degradation under freezing and thawing cycles represents a key factor in the production of erodible soil mass in mountains slopes. In general, erosion and erodibility have been addressed by experimental approaches ... -
Modelling methane hydrate saturation in pores: capillary inhibition effects
(2021-09)
Article
Accés obertExperimental and field observations evidence the effects of capillarity in narrow pores on inhibiting the thermodynamic stability of gas hydrates and controlling their saturation. Thus, precise estimates of the gas hydrate ... -
Modelling of a deep excavation in a stiff clay
(2009)
Text en actes de congrés
Accés obertThis extended abstract presents an interpretation of the response of a mudstone during the excavation of a shaft at high depths (500m). Instrument layout and numerical model are described. A very good agreement is observed ... -
Modelling soil-vegetation-atmosphere in a field experiment
(2023)
Text en actes de congrés
Accés restringit per política de l'editorialIn this paper, a soil-atmosphere-vegetation interaction, comprised of the state of the atmosphere and its interactions with vegetation in terms of precipitation, wind, temperature, and radiation, is used based on a Finite ... -
Modelling the mechanical behaviour of Callovo-Oxfordian argillite: formulation and application
(Springer, 2017)
Text en actes de congrés
Accés restringit per política de l'editorialThe paper presents a constitutive model for argillaceous rocks, developed within the framework of elastoplasticity, that includes a number of features that are relevant for a satisfactory description of their hydromechanical ... -
Modelling the mechanical behaviour of expansive clays
(Elsevier, 1999)
Article
Accés obertA simple formalism is presented to model the behaviour of expansive clays. Two levels of structure are considered. The behaviour of the macrostructure follows the model developed for unsaturated materials by Alonso et ... -
Monitoring of a full-scale embankment experiment regarding soil–vegetation–atmosphere interactions
(2018-06)
Article
Accés obertSlope 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 ... -
Monitoring the role of soil hydrologic conditions and rainfall for the triggering of torrential flows in the Rebaixader catchment (Central Pyrenees, Spain)
(2023-02)
Article
Accés obertTorrential 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 ... -
Nonlocal plasticity modelling of strain localisation in stiff clays
(Elsevier, 2018-11)
Article
Accés obertThe paper addresses the numerical simulation of strain localisation in stiff clays that exhibit softening behaviour. An elastoplastic constitutive model developed to incorporate key features of stiff clay behaviour is ... -
Numerical modelling of slope–vegetation–atmosphere interaction: an overview
(2017-08)
Article
Accés obertThe behaviour of natural and artificial slopes is controlled by their thermo-hydro-mechanical conditions and by soil–vegetation–atmosphere interaction. Porewater pressure changes within a slope related to variable ... -
Numerical simulation of underground excavations in an indurated clay using non-local regularisation. Part 1: formulation and base case
(2022-12)
Article
Accés obertThe paper presents the numerical simulation of an underground excavation in the Callovo-Oxfordian argillaceous formation, performed in the Meuse/Haute-Marne underground research laboratory, within the context of deep ... -
Numerical simulation of underground excavations in an indurated clay using non-local regularisation. Part 2: Sensitivity analysis
(2022-12)
Article
Accés obertA sensitivity study is presented to evaluate the influence of different parameters on the simulation of an underground excavation in the Callovo-Oxfordian (COx) argillaceous formation performed in the Meuse/Haute-Marne ... -
Performance of large diameter storage and sealing structures in a deep exothermic waste repository
(2022)
Text en actes de congrés
Accés restringit per política de l'editorialThe paper presents the work carried out to assess and simulate numerically the phenomenology behind the response of large diameter intermediate-level long-lived nuclear waste (ILW-LL) storage galleries and the corresponding ...
