Numerical Analyses of Earthquake Induced Liquefaction and Deformation Behaviour of an Upstream Tailings Dam
Much of the seismic activity of northern Sweden consists of micro-earthquakes occurring near postglacial faults. However, larger magnitude earthquakes do occur in Sweden, and earthquake statistics indicate that a magnitude 5 event is likely to occur once every century. This paper presents dynamic an...
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ftdoajarticles:oai:doaj.org/article:1f095b67214845bf92ddd4a647ca2b9e 2023-05-15T17:44:24+02:00 Numerical Analyses of Earthquake Induced Liquefaction and Deformation Behaviour of an Upstream Tailings Dam Muhammad Auchar Zardari Hans Mattsson Sven Knutsson Muhammad Shehzad Khalid Maria V. S. Ask Björn Lund 2017-01-01T00:00:00Z https://doi.org/10.1155/2017/5389308 https://doaj.org/article/1f095b67214845bf92ddd4a647ca2b9e EN eng Hindawi Limited http://dx.doi.org/10.1155/2017/5389308 https://doaj.org/toc/1687-8434 https://doaj.org/toc/1687-8442 1687-8434 1687-8442 doi:10.1155/2017/5389308 https://doaj.org/article/1f095b67214845bf92ddd4a647ca2b9e Advances in Materials Science and Engineering, Vol 2017 (2017) Materials of engineering and construction. Mechanics of materials TA401-492 article 2017 ftdoajarticles https://doi.org/10.1155/2017/5389308 2022-12-31T05:55:29Z Much of the seismic activity of northern Sweden consists of micro-earthquakes occurring near postglacial faults. However, larger magnitude earthquakes do occur in Sweden, and earthquake statistics indicate that a magnitude 5 event is likely to occur once every century. This paper presents dynamic analyses of the effects of larger earthquakes on an upstream tailings dam at the Aitik copper mine in northern Sweden. The analyses were performed to evaluate the potential for liquefaction and to assess stability of the dam under two specific earthquakes: a commonly occurring magnitude 3.6 event and a more extreme earthquake of magnitude 5.8. The dynamic analyses were carried out with the finite element program PLAXIS using a recently implemented constitutive model called UBCSAND. The results indicate that the magnitude 5.8 earthquake would likely induce liquefaction in a limited zone located below the ground surface near the embankment dikes. It is interpreted that stability of the dam may not be affected due to the limited extent of the liquefied zone. Both types of earthquakes are predicted to induce tolerable magnitudes of displacements. The results of the postseismic slope stability analysis, performed for a state after a seismic event, suggest that the dam is stable during both the earthquakes. Article in Journal/Newspaper Northern Sweden Directory of Open Access Journals: DOAJ Articles Copper Mine ENVELOPE(-59.667,-59.667,-62.383,-62.383) Advances in Materials Science and Engineering 2017 1 12 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Materials of engineering and construction. Mechanics of materials TA401-492 |
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Materials of engineering and construction. Mechanics of materials TA401-492 Muhammad Auchar Zardari Hans Mattsson Sven Knutsson Muhammad Shehzad Khalid Maria V. S. Ask Björn Lund Numerical Analyses of Earthquake Induced Liquefaction and Deformation Behaviour of an Upstream Tailings Dam |
topic_facet |
Materials of engineering and construction. Mechanics of materials TA401-492 |
description |
Much of the seismic activity of northern Sweden consists of micro-earthquakes occurring near postglacial faults. However, larger magnitude earthquakes do occur in Sweden, and earthquake statistics indicate that a magnitude 5 event is likely to occur once every century. This paper presents dynamic analyses of the effects of larger earthquakes on an upstream tailings dam at the Aitik copper mine in northern Sweden. The analyses were performed to evaluate the potential for liquefaction and to assess stability of the dam under two specific earthquakes: a commonly occurring magnitude 3.6 event and a more extreme earthquake of magnitude 5.8. The dynamic analyses were carried out with the finite element program PLAXIS using a recently implemented constitutive model called UBCSAND. The results indicate that the magnitude 5.8 earthquake would likely induce liquefaction in a limited zone located below the ground surface near the embankment dikes. It is interpreted that stability of the dam may not be affected due to the limited extent of the liquefied zone. Both types of earthquakes are predicted to induce tolerable magnitudes of displacements. The results of the postseismic slope stability analysis, performed for a state after a seismic event, suggest that the dam is stable during both the earthquakes. |
format |
Article in Journal/Newspaper |
author |
Muhammad Auchar Zardari Hans Mattsson Sven Knutsson Muhammad Shehzad Khalid Maria V. S. Ask Björn Lund |
author_facet |
Muhammad Auchar Zardari Hans Mattsson Sven Knutsson Muhammad Shehzad Khalid Maria V. S. Ask Björn Lund |
author_sort |
Muhammad Auchar Zardari |
title |
Numerical Analyses of Earthquake Induced Liquefaction and Deformation Behaviour of an Upstream Tailings Dam |
title_short |
Numerical Analyses of Earthquake Induced Liquefaction and Deformation Behaviour of an Upstream Tailings Dam |
title_full |
Numerical Analyses of Earthquake Induced Liquefaction and Deformation Behaviour of an Upstream Tailings Dam |
title_fullStr |
Numerical Analyses of Earthquake Induced Liquefaction and Deformation Behaviour of an Upstream Tailings Dam |
title_full_unstemmed |
Numerical Analyses of Earthquake Induced Liquefaction and Deformation Behaviour of an Upstream Tailings Dam |
title_sort |
numerical analyses of earthquake induced liquefaction and deformation behaviour of an upstream tailings dam |
publisher |
Hindawi Limited |
publishDate |
2017 |
url |
https://doi.org/10.1155/2017/5389308 https://doaj.org/article/1f095b67214845bf92ddd4a647ca2b9e |
long_lat |
ENVELOPE(-59.667,-59.667,-62.383,-62.383) |
geographic |
Copper Mine |
geographic_facet |
Copper Mine |
genre |
Northern Sweden |
genre_facet |
Northern Sweden |
op_source |
Advances in Materials Science and Engineering, Vol 2017 (2017) |
op_relation |
http://dx.doi.org/10.1155/2017/5389308 https://doaj.org/toc/1687-8434 https://doaj.org/toc/1687-8442 1687-8434 1687-8442 doi:10.1155/2017/5389308 https://doaj.org/article/1f095b67214845bf92ddd4a647ca2b9e |
op_doi |
https://doi.org/10.1155/2017/5389308 |
container_title |
Advances in Materials Science and Engineering |
container_volume |
2017 |
container_start_page |
1 |
op_container_end_page |
12 |
_version_ |
1766146617221578752 |