Modelling; Unsaturated behaviour; Ventilation; Gas migration; Multi-physics coupling
Abstract :
[en] The unsaturated behaviour of Callovo-Oxfordian argillite is investigated through the modelling of 2 in-situ experiments. The first test studies the influence of ventilation in a gallery on the hydro-mechanical behaviour of the rock mass. The second test consists in a gas injection in the rock mass from an experimental borehole. A hydro-mechanical model is described and used in the modelling of the experiments. A review of the main hydro-mechanical parameters of argillite is presented. The numerical results highlight the need of a flow boundary condition reproducing the fluid transfers between the surroundings and the rock mass. The influence of dissolved gas on the compressibility of the liquid phase is also emphasised.
Disciplines :
Civil engineering
Author, co-author :
Charlier, Robert ; Université de Liège - ULiège > Département ArGEnCo > Géomécanique et géologie de l'ingénieur
Collin, Frédéric ; Université de Liège - ULiège > Département ArGEnCo > Géomécanique et géologie de l'ingénieur
Pardoen, Benoît ; Université de Liège - ULiège > Département ArGEnCo > Géomécanique et géologie de l'ingénieur
Talandier, Jean; Agence Nationale pour la Gestion des Déchets Radioactifs - ANDRA
Radu, Jean-Pol ; Université de Liège - ULiège > Département ArGEnCo > Géomécanique et géologie de l'ingénieur
Gerard, Pierre; Université Libre de Bruxelles - ULB
Language :
English
Title :
An unsaturated hydro-mechanical modelling of two in-situ experiments in Callovo-Oxfordian argillite
Publication date :
24 October 2013
Journal title :
Engineering Geology
ISSN :
0013-7952
Publisher :
Elsevier Science, Amsterdam, Netherlands
Special issue title :
Research and Applications in Unsaturated Soil Mechanics
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