Riverbank stability in loose layered silty clays : Comments on the North Spur Dam at Muskrat Falls in Churchill River, Labrador, Newfoundland
The differences are outlined in landslide analysis between the classic limit equilibrium method with assumed plastic properties of the soil and a progressive analysis applying softening material properties. The risk for failure is studied in the dam at the North Spur riverbank ridge at Muskrat Falls...
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Luleå tekniska universitet, Byggkonstruktion och -produktion
2017
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ftluleatu:oai:DiVA.org:ltu-64723 2024-06-09T07:45:24+00:00 Riverbank stability in loose layered silty clays : Comments on the North Spur Dam at Muskrat Falls in Churchill River, Labrador, Newfoundland Bernander, Stig Elfgren, Lennart 2017 application/pdf http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-64723 eng eng LuleÃ¥ tekniska universitet, Byggkonstruktion och -produktion LuleÃ¥ tekniska universitet, Byggkonstruktion och brand LuleÃ¥ Teknisk rapport / LuleÃ¥ tekniska universitet, 1402-1536 orcid:0000-0002-0560-9355 http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-64723 urn:isbn:978-91-7583-928-8 info:eu-repo/semantics/openAccess Landslide Riverbank stability Progressive failure Construction Management Byggproduktion Infrastructure Engineering Infrastrukturteknik Report info:eu-repo/semantics/report text 2017 ftluleatu 2024-05-15T08:03:22Z The differences are outlined in landslide analysis between the classic limit equilibrium method with assumed plastic properties of the soil and a progressive analysis applying softening material properties. The risk for failure is studied in the dam at the North Spur riverbank ridge at Muskrat Falls in Churchill River in Labrador, Newfoundland, Canada. A sloping failure surface is much more critical than the horizontal surfaces which have hitherto been studied. Results from new analyses have now been obtained applying softening material properties probable for the ridge. The results indicate safety factors lower than 0.5, i.e. there is a high risk that the ridge will fail if the water level is raised to the proposed level. Three reports are appended where Stig Bernander argues in detail for the need for a proper progressive failure analysis based on measured material properties. He also proposes how such properties may be obtained and gives an example of a way to stabilize the ridge if the soil properties show a softening behaviour. Finally examples of progressive failure analyses are included using probable material properties. Report Churchill River Newfoundland Luleå University of Technology Publications (DiVA) Canada Newfoundland |
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Open Polar |
collection |
Luleå University of Technology Publications (DiVA) |
op_collection_id |
ftluleatu |
language |
English |
topic |
Landslide Riverbank stability Progressive failure Construction Management Byggproduktion Infrastructure Engineering Infrastrukturteknik |
spellingShingle |
Landslide Riverbank stability Progressive failure Construction Management Byggproduktion Infrastructure Engineering Infrastrukturteknik Bernander, Stig Elfgren, Lennart Riverbank stability in loose layered silty clays : Comments on the North Spur Dam at Muskrat Falls in Churchill River, Labrador, Newfoundland |
topic_facet |
Landslide Riverbank stability Progressive failure Construction Management Byggproduktion Infrastructure Engineering Infrastrukturteknik |
description |
The differences are outlined in landslide analysis between the classic limit equilibrium method with assumed plastic properties of the soil and a progressive analysis applying softening material properties. The risk for failure is studied in the dam at the North Spur riverbank ridge at Muskrat Falls in Churchill River in Labrador, Newfoundland, Canada. A sloping failure surface is much more critical than the horizontal surfaces which have hitherto been studied. Results from new analyses have now been obtained applying softening material properties probable for the ridge. The results indicate safety factors lower than 0.5, i.e. there is a high risk that the ridge will fail if the water level is raised to the proposed level. Three reports are appended where Stig Bernander argues in detail for the need for a proper progressive failure analysis based on measured material properties. He also proposes how such properties may be obtained and gives an example of a way to stabilize the ridge if the soil properties show a softening behaviour. Finally examples of progressive failure analyses are included using probable material properties. |
format |
Report |
author |
Bernander, Stig Elfgren, Lennart |
author_facet |
Bernander, Stig Elfgren, Lennart |
author_sort |
Bernander, Stig |
title |
Riverbank stability in loose layered silty clays : Comments on the North Spur Dam at Muskrat Falls in Churchill River, Labrador, Newfoundland |
title_short |
Riverbank stability in loose layered silty clays : Comments on the North Spur Dam at Muskrat Falls in Churchill River, Labrador, Newfoundland |
title_full |
Riverbank stability in loose layered silty clays : Comments on the North Spur Dam at Muskrat Falls in Churchill River, Labrador, Newfoundland |
title_fullStr |
Riverbank stability in loose layered silty clays : Comments on the North Spur Dam at Muskrat Falls in Churchill River, Labrador, Newfoundland |
title_full_unstemmed |
Riverbank stability in loose layered silty clays : Comments on the North Spur Dam at Muskrat Falls in Churchill River, Labrador, Newfoundland |
title_sort |
riverbank stability in loose layered silty clays : comments on the north spur dam at muskrat falls in churchill river, labrador, newfoundland |
publisher |
Luleå tekniska universitet, Byggkonstruktion och -produktion |
publishDate |
2017 |
url |
http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-64723 |
geographic |
Canada Newfoundland |
geographic_facet |
Canada Newfoundland |
genre |
Churchill River Newfoundland |
genre_facet |
Churchill River Newfoundland |
op_relation |
Teknisk rapport / Luleå tekniska universitet, 1402-1536 orcid:0000-0002-0560-9355 http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-64723 urn:isbn:978-91-7583-928-8 |
op_rights |
info:eu-repo/semantics/openAccess |
_version_ |
1801374752313442304 |