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Erschienen in:
2018 | OriginalPaper | Buchkapitel
Modelling of Castaño Viejo Tailings Flow Case History
verfasst von : Francisco Zabala, Gustavo Navarta, Luciano A. Oldecop
Erschienen in: Proceedings of China-Europe Conference on Geotechnical Engineering
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Abstract
The Castaño Viejo mine, located in the Andes Mountains of San Juan Province, Argentina, was in operation between 1956 and 1964. A series of tailings dams were built during operation. One of these dams collapsed and the tailings flowed downstream for 3 km causing 3 causalities. This paper describes the Material Point Method modelling of this case history. An ASTER GDEM digital elevation terrain model and in-situ GPS measurements were used to generate the boundary condition for the MPM three-dimensional model. The tailings material was modelled as an equivalent fluid using Bingham constitutive equation. Results of the model runout are compared with GPS measurements of flow relicts and estimation of tailings deposits depth.