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Evaluation des risques de fuite au travers de la barrière multicouche d'une aire de lixiviation en tas : Traitement conjoint d'incertitudes aléatoires et épistémiques

Abstract : There is a shift in the mining industry towards an increased use of risk assessment at the various stages of a mining project. This applies also to the use of geosynthetics in mining applications, e.g. in heap leach pads. Risk assessments use models that involve parameters which are often affected by uncertainty. In this paper, we propose a risk assessment for leakage from a heap leach pad multilayer liner, taking into account two different types of uncertainties: aleatory (reflecting random variability) and epistemic (reflecting the incomplete nature of available information). It is shown how these distinct types of uncertainties can be accommodated in the estimation of risk, to contribute in a more consistent fashion to the decision-making process.
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https://hal.inrae.fr/hal-02594826
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Submitted on : Tuesday, August 18, 2020 - 10:59:18 AM
Last modification on : Monday, February 15, 2021 - 10:39:25 AM
Long-term archiving on: : Tuesday, December 1, 2020 - 5:23:56 PM

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  • HAL Id : hal-02594826, version 1
  • IRSTEA : PUB00031447

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D. Guyonnet, N. Touze-Foltz, J. Lupo, C. Mathey. Evaluation des risques de fuite au travers de la barrière multicouche d'une aire de lixiviation en tas : Traitement conjoint d'incertitudes aléatoires et épistémiques. 8èmes Rencontres Géosynthétiques, Mar 2011, Tours, France. pp.171-180. ⟨hal-02594826⟩

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