Application of a critical state model to the Merriespruit tailings dam failure

نویسندگان

چکیده

The use of stress–deformation analyses to evaluate the characteristics possible static liquefaction events is rapidly becoming norm for tailings dams exposed such risk. Ideally, those should be based on constitutive models that incorporate fundamental mechanics problem, are able perform robustly in commercial numerical platforms and simple calibrate. A model aims fulfil specification proposed. a new implementation previously proposed critical state concepts represent liquefaction. formulation elaborated show all required inputs can related familiar as line, parameter, normalised undrained peak strength or coefficient earth pressure at rest. methodology illustrated by analysing failure Merriespruit dam, which occurred South Africa 1994 was instrumental recognition how widespread risk might saturated tailings. Numerical analysis case showed large have been triggered relatively small slope erosion caused overtopping.

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ژورنال

عنوان ژورنال: Proceedings of the Institution of Civil Engineers

سال: 2022

ISSN: ['1757-9430', '1757-9449']

DOI: https://doi.org/10.1680/jgeen.21.00001