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Modélisation numérique d’un essai de ventilation in situ

Numerical modelling of an in situ ventilation test
Authors: Pardoen, Benoît; Talandier, Jean; Charlier, Robert; Collin, Frédéric; Radu, Jean-Pol;

Modélisation numérique d’un essai de ventilation in situ

Abstract

Des modélisations numériques en écoulements fluides et hydromécaniques sont réalisées en vue d’acquérir une meilleure compréhension du comportement des roches argileuses et des transferts qui se produisent pendant un essai de ventilation in situ. L’essai est effectué dans une galerie expérimentale qui fait partie d’un laboratoire de recherche souterrain. Un modèle d’écoulement biphasique dans les sols non saturés et une loi constitutive élasto-plastique sont utilisés pour la roche hôte. Les modèles incluent une condition limite d’échange de masse fluide, l’anisotropie et une zone endommagée située autour de la galerie. Finalement, le test de ventilation est reproduit et le modèle est calibré sur base de correspondances entre les résultats numériques et les mesures expérimentales.

Hydro and hydro-mechanical numerical modellings are performed in order to acquire a better understanding of clayey rock behaviour and transfers occurring during an in situ ventilation test. The test is performed in an experimental gallery that is part of an underground research laboratory. A biphasic flow model in unsaturated soil and an elasto-plastic constitutive law are used for the host formation. The models include exchange condition of fluid mass, anisotropy and the excavation damaged zone around the gallery. Finally, the ventilation test is reproduced and the model is calibrated based on the matching between numerical results and experimental measurements.

Country
Belgium
Related Organizations
Keywords

modèle d’écoulement biphasique, excavation damaged zone, biphasic flow model, numerical modelling, Engineering, computing & technology, Ingénierie, informatique & technologie, modélisation numérique, Ingénierie civile, radioactive waste, Civil engineering, zone endommagée, unsaturated soil, sols non saturés, déchets radioactifs

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green