Modelling of the bedrock response to glacial loading at the Olkiluoto site, Finland

The Olkiluoto Island is situated in Baltic Sea, near the southwestern coast of Finland. The most abundant rock type is migmatic mica gneiss, intruded by tonalites, granodiorites and granites. Response of bedrock at Olkiluoto site was modelled with 3DEC program considering four future ice age scenari...

Full description

Saved in:
Bibliographic Details
Published in:Engineering geology 2002-12, Vol.67 (1), p.39-49
Main Authors: Hutri, Kaisa-Leena, Antikainen, Juha
Format: Article
Language:English
Subjects:
3D modelling
Applied sciences
Buildings. Public works
Climate change
Earth sciences
Earth, ocean, space
Engineering and environment geology. Geothermics
Engineering geology
Exact sciences and technology
Faults
General treatment and storage processes
Geotechnics
Glaciation
Nuclear waste repository
Pollution
Radioactive wastes
Shearing
Soil mechanics. Rocks mechanics
Wastes
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The Olkiluoto Island is situated in Baltic Sea, near the southwestern coast of Finland. The most abundant rock type is migmatic mica gneiss, intruded by tonalites, granodiorites and granites. Response of bedrock at Olkiluoto site was modelled with 3DEC program considering four future ice age scenarios. Each scenario produces shear displacements of fractures with different time of occurrence and varying recovery rate. Generally, the larger the maximum ice load, the larger the permanent shear displacements will be. For basic case, the maximum shear displacements were few centimeters at suggested nuclear waste repository level. The sensitivity study performed showed that shear stiffness and joint friction angle of bedrock structures are the most critical parameters for bedrock displacements.
ISSN:0013-7952
1872-6917
DOI:10.1016/S0013-7952(02)00108-4