EMBREA-MUD a tool for the simulation of tailings dams breaching

Hassan, M. and Petkovsek, G. and Goff, C. (2021) EMBREA-MUD a tool for the simulation of tailings dams breaching. In: INCOLD 2021 Symposium, 24 - 27 February 2021, New Delhi, India and Online.

Full text not available from this repository.
Official URL: https://www.icold2020.org/Proceedings/Data/Themes/...


Failure of a tailings dam can have disastrous consequences. However, to date, it cannot be accurately simulated. Therefore, the EMBREA-MUD model was developed to fill this gap within the DAMSAT project which is funded by the UK Space Agency. The model is a two component breach modelling tool that simultaneously takes into account outflows of both water and mud (i.e. tailings). The model can also represent erosion of dam material by both water and tailings, erosion of tailings by water as well as dynamic forces between water and tailings layer. There are however some challenges related to simulation of tailings dam breaching and in particular the breach initiation which can be due to overtopping, piping or other mechanisms, such as foundation failure or sliding. As dams are designed to be stable, these initial failures are un-foreseen and therefore cannot be accurately quantified based on available data. In this paper, these mechanisms were investigated to check whether they could be reproduced assuming an initial notch in the dam crest. The case of Mount Polley was used, where the dam failed initially due to foundation failure. The results showed that the “initial notch” approach indeed produced similar peak outflows and time intervals.

Item Type: Conference or Workshop Item (Paper)
Subjects: Floods > Dams and reservoirs
Divisions: Floods
Depositing User: Helen Stevenson
Date Deposited: 21 Apr 2020 13:52
Last Modified: 04 Mar 2021 08:38
URI: http://eprints.hrwallingford.com/id/eprint/1408

Actions (for site administrators only - login required)

View Item View Item