Curtin University Homepage
  • Library
  • Help
    • Admin

    espace - Curtin’s institutional repository

    JavaScript is disabled for your browser. Some features of this site may not work without it.
    View Item 
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item

    Numerical simulations of seismic and post-seismic behavior of tailings

    Access Status
    Fulltext not available
    Authors
    Ferdosi, Behnam
    James, M.
    Aubertin, M.
    Date
    2016
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Ferdosi, B. and James, M. and Aubertin, M. 2016. Numerical simulations of seismic and post-seismic behavior of tailings. Canadian Geotechnical Journal. 53 (1): pp. 85-92.
    Source Title
    Canadian Geotechnical Journal
    DOI
    10.1139/cgj-2014-0345
    ISSN
    0008-3674
    School
    Dept of Mining Eng & Metallurgical Eng
    URI
    http://hdl.handle.net/20.500.11937/22706
    Collection
    • Curtin Research Publications
    Abstract

    © 2015, National Research Council of Canada. All rights reserved. Several tailings impoundments have failed as a result of earthquakes in the last few decades. A majority of these failures were due to direct seismic loading, tailings liquefaction during shaking, or the post-seismic behavior of the tailings as it relates to the dissipation of excess pore-water pressures that were generated during shaking. Previous work has indicated that the UBCSAND model developed by Byrne et al. in 1995 is capable of simulating the cyclic simple shear testing response of low-plasticity tailings over a range of consolidation stresses and cyclic shear ratios. However, the ability of the model to simulate the dynamic and subsequent behavior of such tailings for other conditions, such those induced by shaking table tests, has not yet been evaluated. In this regard, previous work has shown that the main components of the UBCSAND model cannot realistically simulate some specific responses, including the post-seismic volumetric strains related to excess pore-water pressure dissipation. This paper presents numerical modeling results of the dynamic behavior of tailings from hard rock mines. It introduces a method for simulating their post-seismic behavior by including an updating scheme for the elastic moduli into the UBCSAND model. The results of cyclic simple shear testing, seismic table testing, and complementary experimental relationships were used to calibrate and validate the model with its new component. The simulated response of tailings during cyclic simple shear testing and for a complete seismic table test shows that the proposed approach simulates the experimental observations well. Level-ground, seismically induced liquefaction and post-seismic behavior of a 15 m thick tailings deposit are also simulated, leading to post-liquefaction settlements that are in agreement with empirical relationships.

    Related items

    Showing items related by title, author, creator and subject.

    • Effect of waste rock inclusions on the seismic stability of an upstream raised tailings impoundment: A numerical investigation
      Ferdosi, Behnam; James, M.; Aubertin, M. (2015)
      © 2015, National Research Council of Canada. All rights reserved. Over the years, seismic activity has been a relatively common cause of tailings impoundment failure. The flow of liquefied tailings from such ruptures can ...
    • Behaviour of railway track subgrade under cyclic loading
      Loh, Beng Heng (2011)
      The railway track foundation of fine-grained soil subgrade, under repeated loading of cyclic nature, can gradually build up excess pore pressure and result in progressive shear failure at a stress level much lower than ...
    • Threshold stress and deformation characteristics of clay subgrade for railway tracks
      Loh, Richard; Nikraz, Hamid (2011)
      Clay subgrade beneath railway track experiences stress of cyclic nature that can result in progressive shear failure at a stress level lower than the clay monotonic strength. This paper described the effective stress ...
    Advanced search

    Browse

    Communities & CollectionsIssue DateAuthorTitleSubjectDocument TypeThis CollectionIssue DateAuthorTitleSubjectDocument Type

    My Account

    Admin

    Statistics

    Most Popular ItemsStatistics by CountryMost Popular Authors

    Follow Curtin

    • 
    • 
    • 
    • 
    • 

    CRICOS Provider Code: 00301JABN: 99 143 842 569TEQSA: PRV12158

    Copyright | Disclaimer | Privacy statement | Accessibility

    Curtin would like to pay respect to the Aboriginal and Torres Strait Islander members of our community by acknowledging the traditional owners of the land on which the Perth campus is located, the Whadjuk people of the Nyungar Nation; and on our Kalgoorlie campus, the Wongutha people of the North-Eastern Goldfields.