Modelling of the long-term evolution and performance of engineered barrier system

Francis Claret (1) , Alexandre Dauzères (2) , D Jacques (3) , P Sellin (4) , B Cochepin (5) , Laurent de Windt (6) , J Garibay-Rodriguez (7) , J Govaerts (3) , O Leupin (8) , A Monlopez (9) , L Montenegro (9) , V Montoya (7, 3) , N Prasianakis (10) , J Samper (9) , J Talandier (11)

1 BRGM - Bureau de Recherches Géologiques et Minières (BRGM)
2 IRSN/PSE-ENV/SEDRE/LETIS - Laboratoire d'étude et de recherche sur les transferts et les interactions dans les sous-sols
3 SCK-CEN - Centre d'Etude de l'Energie Nucléaire
4 SKB - Swedish Nuclear Fuel and Waste Management Co
5 ANDRA - Agence Nationale pour la Gestion des Déchets Radioactifs
6 GEOSCIENCES - Centre de Géosciences
7 UFZ - Helmholtz Zentrum für Umweltforschung = Helmholtz Centre for Environmental Research
8 NAGRA France SAS
9 UDC - University of A Coruña
10 PSI - Paul Scherrer Institute
11 ANDRA

Components of the so-called "multiple-barrier system" from the waste form to the biosphere include a combination of waste containers, engineered barriers, and natural barriers. The Engineered Barrier System (EBS) is crucial for containment and isolation in a radioactive waste disposal system. The number, types, and assigned safety functions of the various engineered barriers depend on the chosen repository concept, the waste form, the radionuclides waste inventory, the selected host rock, and the hydrogeological and geochemical settings of the repository site, among others. EBS properties will evolve

Domaines: Géochimie

Francis Claret, Alexandre Dauzères, D Jacques, P Sellin, B Cochepin, et al.. Modelling of the long-term evolution and performance of engineered barrier system. EPJ N - Nuclear Sciences & Technologies, 2022, 8 (41), pp.15. ⟨10.1051/epjn/2022038⟩. ⟨hal-03881540⟩