A Failure Modes and Effects Analysis Framework for Assessing Geotechnical Risks of Tailings Dam Closure

Tailings dams remain on site following mine closures and must be designed and reclaimed to meet long-term goals, which may include walk-away closure or long-term care and maintenance. The underperformance of these structures can result in significant risks to public and environmental safety, as well...

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Autores principales: Haley L. Schafer, Nicholas A. Beier, Renato Macciotta
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Lenguaje:EN
Publicado: MDPI AG 2021
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spelling oai:doaj.org-article:ede35100a7d745819f364cb2a2ee7f802021-11-25T18:26:29ZA Failure Modes and Effects Analysis Framework for Assessing Geotechnical Risks of Tailings Dam Closure10.3390/min111112342075-163Xhttps://doaj.org/article/ede35100a7d745819f364cb2a2ee7f802021-11-01T00:00:00Zhttps://www.mdpi.com/2075-163X/11/11/1234https://doaj.org/toc/2075-163XTailings dams remain on site following mine closures and must be designed and reclaimed to meet long-term goals, which may include walk-away closure or long-term care and maintenance. The underperformance of these structures can result in significant risks to public and environmental safety, as well as impacts on the future land use and economic activities near the structure. In Alberta, Canada, the expectation is for a tailings dam to be reclaimed and closed so that it can undergo deregistration. To aid in assessing the risks of underperformance during and after closure, a Generalized Failure Modes and Effects Analysis (G-FMEA) framework was developed to assess the long-term geotechnical risks for tailings dams in Alberta, with the goal of assessing the potential success of a tailings dam closure strategy. The G-FMEA is part of an initiative to enhance closure evaluations in Alberta in a collaborative effort between industry, the regulator, and academia. The G-FMEA incorporates the element of time to account for the evolution of the system, which should be applied at the planning stage and updated continually throughout the life of the facility. This paper presents the developed G-FMEA framework for tailings dams in Alberta, including the developed risk matrix framework.Haley L. SchaferNicholas A. BeierRenato MacciottaMDPI AGarticleexternal tailings facilitiestailings damsclosureAlbertafailure modes and effects analysisgeotechnical riskMineralogyQE351-399.2ENMinerals, Vol 11, Iss 1234, p 1234 (2021)
institution DOAJ
collection DOAJ
language EN
topic external tailings facilities
tailings dams
closure
Alberta
failure modes and effects analysis
geotechnical risk
Mineralogy
QE351-399.2
spellingShingle external tailings facilities
tailings dams
closure
Alberta
failure modes and effects analysis
geotechnical risk
Mineralogy
QE351-399.2
Haley L. Schafer
Nicholas A. Beier
Renato Macciotta
A Failure Modes and Effects Analysis Framework for Assessing Geotechnical Risks of Tailings Dam Closure
description Tailings dams remain on site following mine closures and must be designed and reclaimed to meet long-term goals, which may include walk-away closure or long-term care and maintenance. The underperformance of these structures can result in significant risks to public and environmental safety, as well as impacts on the future land use and economic activities near the structure. In Alberta, Canada, the expectation is for a tailings dam to be reclaimed and closed so that it can undergo deregistration. To aid in assessing the risks of underperformance during and after closure, a Generalized Failure Modes and Effects Analysis (G-FMEA) framework was developed to assess the long-term geotechnical risks for tailings dams in Alberta, with the goal of assessing the potential success of a tailings dam closure strategy. The G-FMEA is part of an initiative to enhance closure evaluations in Alberta in a collaborative effort between industry, the regulator, and academia. The G-FMEA incorporates the element of time to account for the evolution of the system, which should be applied at the planning stage and updated continually throughout the life of the facility. This paper presents the developed G-FMEA framework for tailings dams in Alberta, including the developed risk matrix framework.
format article
author Haley L. Schafer
Nicholas A. Beier
Renato Macciotta
author_facet Haley L. Schafer
Nicholas A. Beier
Renato Macciotta
author_sort Haley L. Schafer
title A Failure Modes and Effects Analysis Framework for Assessing Geotechnical Risks of Tailings Dam Closure
title_short A Failure Modes and Effects Analysis Framework for Assessing Geotechnical Risks of Tailings Dam Closure
title_full A Failure Modes and Effects Analysis Framework for Assessing Geotechnical Risks of Tailings Dam Closure
title_fullStr A Failure Modes and Effects Analysis Framework for Assessing Geotechnical Risks of Tailings Dam Closure
title_full_unstemmed A Failure Modes and Effects Analysis Framework for Assessing Geotechnical Risks of Tailings Dam Closure
title_sort failure modes and effects analysis framework for assessing geotechnical risks of tailings dam closure
publisher MDPI AG
publishDate 2021
url https://doaj.org/article/ede35100a7d745819f364cb2a2ee7f80
work_keys_str_mv AT haleylschafer afailuremodesandeffectsanalysisframeworkforassessinggeotechnicalrisksoftailingsdamclosure
AT nicholasabeier afailuremodesandeffectsanalysisframeworkforassessinggeotechnicalrisksoftailingsdamclosure
AT renatomacciotta afailuremodesandeffectsanalysisframeworkforassessinggeotechnicalrisksoftailingsdamclosure
AT haleylschafer failuremodesandeffectsanalysisframeworkforassessinggeotechnicalrisksoftailingsdamclosure
AT nicholasabeier failuremodesandeffectsanalysisframeworkforassessinggeotechnicalrisksoftailingsdamclosure
AT renatomacciotta failuremodesandeffectsanalysisframeworkforassessinggeotechnicalrisksoftailingsdamclosure
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