Numerical Analyses of Earthquake Induced Liquefaction and Deformation Behaviour of an Upstream Tailings Dam
Joint Authors
Zardari, Muhammad Auchar
Mattsson, Hans
Knutsson, Sven
Khalid, Muhammad Shehzad
Ask, Maria V. S.
Lund, Björn
Source
Advances in Materials Science and Engineering
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-02-15
Country of Publication
Egypt
No. of Pages
12
Abstract EN
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.
American Psychological Association (APA)
Zardari, Muhammad Auchar& Mattsson, Hans& Knutsson, Sven& Khalid, Muhammad Shehzad& Ask, Maria V. S.& Lund, Björn. 2017. Numerical Analyses of Earthquake Induced Liquefaction and Deformation Behaviour of an Upstream Tailings Dam. Advances in Materials Science and Engineering،Vol. 2017, no. 2017, pp.1-12.
https://search.emarefa.net/detail/BIM-1124225
Modern Language Association (MLA)
Khalid, Muhammad Shehzad…[et al.]. Numerical Analyses of Earthquake Induced Liquefaction and Deformation Behaviour of an Upstream Tailings Dam. Advances in Materials Science and Engineering No. 2017 (2017), pp.1-12.
https://search.emarefa.net/detail/BIM-1124225
American Medical Association (AMA)
Zardari, Muhammad Auchar& Mattsson, Hans& Knutsson, Sven& Khalid, Muhammad Shehzad& Ask, Maria V. S.& Lund, Björn. Numerical Analyses of Earthquake Induced Liquefaction and Deformation Behaviour of an Upstream Tailings Dam. Advances in Materials Science and Engineering. 2017. Vol. 2017, no. 2017, pp.1-12.
https://search.emarefa.net/detail/BIM-1124225
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1124225