The failure of the Stava Valley tailings dams (Northern Italy): numerical analysis of the flow dynamics and rheological properties

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• 作者：Marina Pirulli ; Monica Barbero ; Maddalena Marchelli…
• 关键词：Tailings dams ; Numerical modelling ; Flow dynamics ; Rheology
• 刊名：Geoenvironmental Disasters
• 出版年：2017
• 出版时间：December 2017
• 年：2017
• 卷：4
• 期：1
• 全文大小：3944KB
• 刊物类别：Environment, general; Earth Sciences, general; Geography (general); Geoecology/Natural Processes; Na
• 刊物主题：Environment, general; Earth Sciences, general; Geography, general; Geoecology/Natural Processes; Natural Hazards; Environmental Science and Engineering;
• 出版者：Springer International Publishing
• ISSN：2197-8670
• 卷排序：4

文摘

BackgroundTailings dams are made up of mining residue deposits, and they represent a high risk, in terms of mechanical instability. In the event of collapse, the tailings in such dams may be released and flow over long distances, with the potential risk of extensive damage to property and life. The traditional geotechnical assessment of tailings facilities has mainly concentrated on the stability of tailings dams, while relatively few studies have investigated the flow of tailings released after dam failure. In this context, it is possible to state that, if the complex rheological behaviour of the tailings material is captured correctly during the flow, numerical modelling can be used to contribute to a better comprehension of the flow characteristics and for the assessment of the possible extension of the impact area.