Description
Concerns thermal expansion and creep in the crushed rock in the central area as well as a number of interactions with the end plug, the near-field rock and the top seal.
SKB Number
SKB FEP Number
CA07
Main Category
Main category for FEP
Internal process
System Component
System component to which the FEP applies
Central area
Handling
Explanation of how the FEP is treated
Intact canister, Resaturation/ "thermal" period: Most mechanical processes can be neglected since the impact and the requirements on the material are low. However, the interaction between plugs and the central area is treated in the THM modelling.
Intact canister, Long-term after saturation and "thermal" period: Neglected since there are no long-term requirements on the central area.
References
Bibliographic references to obtain more information
SR-Site Buffer, backfill and closure process report, TR-10-47, Section(s) 2.5.3, 6.3.1