Freezing effects in a hydropower dam core in Sweden
The hydropower embankment dam in Suorva, Sweden, is located in north of the Arctic Circle. The region is known for cold winters and severe wind conditions. The construction was completed in 1972 and has since then been exposed to a wide temperature range and low annual mean temperatures, leading to...
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Luleå tekniska universitet, Geoteknologi
2007
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ftluleatu:oai:DiVA.org:ltu-38604 2023-05-15T15:05:14+02:00 Freezing effects in a hydropower dam core in Sweden Knutsson, Sven Jantzer, Isabel 2007 application/pdf http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-38604 swe swe Luleå tekniska universitet, Geoteknologi Proceedings of the 8th International Symposium on Cold region Development ISCORD 2007 : September 25-27, 2007, Tampere, Finland http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-38604 Local d0cbc290-88bb-11de-8da0-000ea68e967b info:eu-repo/semantics/openAccess Geotechnical Engineering Geoteknik Conference paper info:eu-repo/semantics/conferenceObject text 2007 ftluleatu 2022-10-25T20:49:04Z The hydropower embankment dam in Suorva, Sweden, is located in north of the Arctic Circle. The region is known for cold winters and severe wind conditions. The construction was completed in 1972 and has since then been exposed to a wide temperature range and low annual mean temperatures, leading to the presumption that the fine-grained frost susceptible moraine core of the embankment was exposed to cyclic freezing and thawing. The aim of this project was to find indications for freezing processes that affect the structure of the soil. The project included field investigations and a theoretical thermal analysis carried out with a commercial finite element program. Results from this analysis showed that the freezing plane advances to a maximum depth of 5 m from the top of the core. Hence, it may be possible that frost action affects the construction in its function as hydraulic barrier. Softening due to freeze/thaw can form initial soft part where internal erosion may be initiated thus causing weak points in the dam structure. Godkänd; 2007; 20090814 (svek) Conference Object Arctic Luleå University of Technology Publications (DiVA) Arctic Suorva ENVELOPE(18.217,18.217,67.533,67.533) |
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Open Polar |
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Luleå University of Technology Publications (DiVA) |
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ftluleatu |
language |
Swedish |
topic |
Geotechnical Engineering Geoteknik |
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Geotechnical Engineering Geoteknik Knutsson, Sven Jantzer, Isabel Freezing effects in a hydropower dam core in Sweden |
topic_facet |
Geotechnical Engineering Geoteknik |
description |
The hydropower embankment dam in Suorva, Sweden, is located in north of the Arctic Circle. The region is known for cold winters and severe wind conditions. The construction was completed in 1972 and has since then been exposed to a wide temperature range and low annual mean temperatures, leading to the presumption that the fine-grained frost susceptible moraine core of the embankment was exposed to cyclic freezing and thawing. The aim of this project was to find indications for freezing processes that affect the structure of the soil. The project included field investigations and a theoretical thermal analysis carried out with a commercial finite element program. Results from this analysis showed that the freezing plane advances to a maximum depth of 5 m from the top of the core. Hence, it may be possible that frost action affects the construction in its function as hydraulic barrier. Softening due to freeze/thaw can form initial soft part where internal erosion may be initiated thus causing weak points in the dam structure. Godkänd; 2007; 20090814 (svek) |
format |
Conference Object |
author |
Knutsson, Sven Jantzer, Isabel |
author_facet |
Knutsson, Sven Jantzer, Isabel |
author_sort |
Knutsson, Sven |
title |
Freezing effects in a hydropower dam core in Sweden |
title_short |
Freezing effects in a hydropower dam core in Sweden |
title_full |
Freezing effects in a hydropower dam core in Sweden |
title_fullStr |
Freezing effects in a hydropower dam core in Sweden |
title_full_unstemmed |
Freezing effects in a hydropower dam core in Sweden |
title_sort |
freezing effects in a hydropower dam core in sweden |
publisher |
Luleå tekniska universitet, Geoteknologi |
publishDate |
2007 |
url |
http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-38604 |
long_lat |
ENVELOPE(18.217,18.217,67.533,67.533) |
geographic |
Arctic Suorva |
geographic_facet |
Arctic Suorva |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
Proceedings of the 8th International Symposium on Cold region Development ISCORD 2007 : September 25-27, 2007, Tampere, Finland http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-38604 Local d0cbc290-88bb-11de-8da0-000ea68e967b |
op_rights |
info:eu-repo/semantics/openAccess |
_version_ |
1766336980855029760 |