Probability risk assessment of landslides: A case study at Finneidfjord
Probabilistic risk assessments are increasingly being considered the most appropriate framework for engineers to systematically base decisions on hazard mitigation issues. This paper aims to show the advantages of a quantitative risk assessment by application to a historical case study. The generali...
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Canadian Science Publishing
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crcansciencepubl:10.1139/t08-055 2024-09-15T18:25:51+00:00 Probability risk assessment of landslides: A case study at Finneidfjord Cassidy, Mark J. Uzielli, Marco Lacasse, Suzanne 2008 http://dx.doi.org/10.1139/t08-055 http://www.nrcresearchpress.com/doi/full-xml/10.1139/T08-055 http://www.nrcresearchpress.com/doi/pdf/10.1139/T08-055 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Geotechnical Journal volume 45, issue 9, page 1250-1267 ISSN 0008-3674 1208-6010 journal-article 2008 crcansciencepubl https://doi.org/10.1139/t08-055 2024-07-25T04:10:03Z Probabilistic risk assessments are increasingly being considered the most appropriate framework for engineers to systematically base decisions on hazard mitigation issues. This paper aims to show the advantages of a quantitative risk assessment by application to a historical case study. The generalized integrated risk assessment framework has been applied retrospectively to a submarine landslide that occurred in 1996 near the village of Finneidfjord in northern Norway. Over 1 million cubic metres of predominantly quick clay was displaced. Even though it was triggered underwater on the embankment of the Sørfjord, the retrogressive nature of the slide resulted in it encroaching 100–150 m inland. The triggering mechanism is believed to have been the placement of fill, from a nearby tunnelling project, on the foreshore of the embankment. This paper is a retrospective quantitative evaluation of the risk to the neighbouring houses, the persons in those houses, and the persons in open spaces caused by the placement of increasing levels of embankment fill. A probabilistic approach, making use of second-moment modelling and first-order second-moment approximation is adopted. It aims to demonstrate the advantages of this type of risk assessment in understanding complex and integrated hazards, particularly those in populated environments. Article in Journal/Newspaper Northern Norway Canadian Science Publishing Canadian Geotechnical Journal 45 9 1250 1267 |
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Canadian Science Publishing |
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English |
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Probabilistic risk assessments are increasingly being considered the most appropriate framework for engineers to systematically base decisions on hazard mitigation issues. This paper aims to show the advantages of a quantitative risk assessment by application to a historical case study. The generalized integrated risk assessment framework has been applied retrospectively to a submarine landslide that occurred in 1996 near the village of Finneidfjord in northern Norway. Over 1 million cubic metres of predominantly quick clay was displaced. Even though it was triggered underwater on the embankment of the Sørfjord, the retrogressive nature of the slide resulted in it encroaching 100–150 m inland. The triggering mechanism is believed to have been the placement of fill, from a nearby tunnelling project, on the foreshore of the embankment. This paper is a retrospective quantitative evaluation of the risk to the neighbouring houses, the persons in those houses, and the persons in open spaces caused by the placement of increasing levels of embankment fill. A probabilistic approach, making use of second-moment modelling and first-order second-moment approximation is adopted. It aims to demonstrate the advantages of this type of risk assessment in understanding complex and integrated hazards, particularly those in populated environments. |
format |
Article in Journal/Newspaper |
author |
Cassidy, Mark J. Uzielli, Marco Lacasse, Suzanne |
spellingShingle |
Cassidy, Mark J. Uzielli, Marco Lacasse, Suzanne Probability risk assessment of landslides: A case study at Finneidfjord |
author_facet |
Cassidy, Mark J. Uzielli, Marco Lacasse, Suzanne |
author_sort |
Cassidy, Mark J. |
title |
Probability risk assessment of landslides: A case study at Finneidfjord |
title_short |
Probability risk assessment of landslides: A case study at Finneidfjord |
title_full |
Probability risk assessment of landslides: A case study at Finneidfjord |
title_fullStr |
Probability risk assessment of landslides: A case study at Finneidfjord |
title_full_unstemmed |
Probability risk assessment of landslides: A case study at Finneidfjord |
title_sort |
probability risk assessment of landslides: a case study at finneidfjord |
publisher |
Canadian Science Publishing |
publishDate |
2008 |
url |
http://dx.doi.org/10.1139/t08-055 http://www.nrcresearchpress.com/doi/full-xml/10.1139/T08-055 http://www.nrcresearchpress.com/doi/pdf/10.1139/T08-055 |
genre |
Northern Norway |
genre_facet |
Northern Norway |
op_source |
Canadian Geotechnical Journal volume 45, issue 9, page 1250-1267 ISSN 0008-3674 1208-6010 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/t08-055 |
container_title |
Canadian Geotechnical Journal |
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45 |
container_issue |
9 |
container_start_page |
1250 |
op_container_end_page |
1267 |
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1810466327083614208 |