Description

Galleries and shafts connecting the supercontainer disposal galleries, and connecting the GDF to the surface, including any materials emplaced in the galleries and shafts.

Category

Category of FEP

Supercontainer EBS

Sub-category

Sub-category of FEP

Disposal system

Ondraf Niras FEP Number

Ondraf Niras FEP Number

8

FEP Effects

Description of FEP Effects

Galleries provide potential pathways for water ingress and radionuclide transport. The disposition of these galleries, and the nature of the seals used, will control the importance of this pathway.

NEA TN2 IFEP Reference(s)

Related IFEPs from the NEA TN2 List of Proposed IFEP Revisions [NEA/RWM/R(2013)8]

3.1.1 Design. 3.1.3 Room/tunnel seals. 3.1.4 Shaft/ramp seals. 3.1.5 Other engineered features.