Unpublished conference/Abstract (Scientific congresses and symposiums)
On the numerical modelling of shear banding around an excavation
Collin, Frédéric; Lambarki, A.; Charlier, Robert et al.
20051st International ISEB Meeting
 

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Abstract :
[en] For an underground storage of nuclear waste, it is necessary to minimize the excavation damage zone (EDZ) that could be a higher permeability zone. This paper deals with the FE modelling of the EDZ extent during tunnelling. A Drucker – Prager law with cohesion strain softening is used. Results show a shear banding around the excavation. Its extent and the tunnel convergence are highly dependent on the hydraulic boundary condition within the tunnel (imposed pore pressure – suction or unilateral flow condition).
Disciplines :
Civil engineering
Author, co-author :
Collin, Frédéric  ;  Université de Liège - ULiège > Département Argenco : Secteur GEO3 > Géomécanique et géologie de l'ingénieur
Lambarki, A.
Charlier, Robert ;  Université de Liège - ULiège > Département Argenco : Secteur GEO3 > Géomécanique et géologie de l'ingénieur
Chambon, René;  Université Joseph Fourier - Grenoble 1 - UJF > Laboratoires 3S-R
Li, Xian;  Studiecentrum voor Energie = Centre d'Etude de l'Energie Nucléaire - SCK = CEN
Language :
English
Title :
On the numerical modelling of shear banding around an excavation
Publication date :
2005
Number of pages :
6
Event name :
1st International ISEB Meeting
Event place :
Shangai, China
Event date :
Septembre 2005
Audience :
International
Available on ORBi :
since 17 July 2009

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