Description
The tunnel backfill is designed to act as an efficient radionuclide transport barrier; this property can be compromised by i) open contact joints between backfill and EDZ, ii) chemical degradation and iii) channelling of flow in EDZ.
OPA Category
Category as used in the OPA assessment
Tunnels and shafts
OPA Number
Number as used in the OPA assessment
2.02
NEA V1 IFEP Reference(s)
Related IFEPs from the NEA V1 IFEP list from 1999
2.2.01, 2.1.05, 3.2.07, 3.2.09