Description

Changes in the forces producing deformation or strain (a change in dimensions).

Category

Category of FEP

Supercontainer EBS

Sub-category

Sub-category of FEP

Physical / mechanical processes

Ondraf Niras FEP Number

Ondraf Niras FEP Number

62

FEP Effects

Description of FEP Effects

The stress field in the EBS will be determined by the regional stress field and by local changes to the stress field caused by excavation, waste emplacement and thermal evolution of the EBS. After re-saturation of the GDF, the supercontainer will be subject to hydrostatic pressure. Changes to these stresses could damage components of the EBS.

NEA TN2 IFEP Reference(s)

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

Not specifically mentioned in relation to the EBS. The stress field in the geosphere is covered by 4.1.8 Current stress state and 4.2.3 Mechanical processes (geosphere).