Hydro-mechanical response of the Tournemire argillite to the underground openings excavation: unsaturated zones and mine-by-test experiment
06/06/2008
Titre du congrès :GeoProc 2008 - 3rd International Conference on coupled T-H-M-C processes in geo-systems
Ville du congrès :Lille
Date du congrès :02/06/2008
Type de document >
*Congrès/colloque
Mots clés publication scientifique >
argilite
,
désaturation
,
mine-by-test
,
réponse hydraumécanique
,
saturation
Unité de recherche >
IRSN/DEI/SARG/BEHRIG
Auteurs >
BEN SLIMANE Karim
,
CABRERA Justo
,
MATRAY Jean-Michel
,
REJEB Amel
,
SAVOYE Sébastien
A mine-by-test has been performed in the Tournemire experimental site, during the excavation of a new gallery in 2003. This experiment shows that the excavation in the Tournemire argillite generate hydro-mechanical disturbances which can extend up to 4 to 6 times the mean radius of the gallery. These hydro-mechanical disturbances due to the excavation are not as important as the hydric ones due to the desaturation/resaturation processes which take place after excavation. Indeed, the hydric disturbances induced the development of some micro-cracks mainly parallel to the bedding planes which form the current damaged zone ofthe gallery.
Migration content title
En savoir plus
Migration content text
Migration content title
Contact
Migration content text