Description

That part of the host rock damaged by construction of the GDF. The extent of this excavation damaged zone (EDZ) along galleries and shafts will depend on the host rock and construction methods used.

Category

Category of FEP

Supercontainer EBS

Sub-category

Sub-category of FEP

Disposal system

Ondraf Niras FEP Number

Ondraf Niras FEP Number

9

FEP Effects

Description of FEP Effects

EDZ properties affect the rate of GDF resaturation and radionuclide transport from the EBS to the host rock.

NEA TN2 IFEP Reference(s)

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

3.1.6 Excavation damaged and disturbed zones.