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Title: Evaluation and development of physically-based embankment breach models

Author
item MORRIS, MARK - Hr Wallingford
item HASSAN, MOHAMED - Hr Wallingford
item WAHL, TONY - Us Bureau Of Reclamation
item Tejral, Ronald
item HANSON, GREGORY - Retired ARS Employee
item TEMPLE, DARREL - Retired ARS Employee

Submitted to: Workshop Proceedings
Publication Type: Proceedings
Publication Acceptance Date: 3/30/2012
Publication Date: 11/20/2012
Citation: Morris, M.W., Hassan, M.A., Wahl, T.L., Tejral, R.D., Hanson, G.J., Temple, D.M. 2012. Evaluation and development of physically-based embankment breach models. In: Proceedings of the 2nd European Conference on Flood Risk Management, 11/20-22/12, Rotterdam, The Netherlands. CDROM.

Interpretive Summary:

Technical Abstract: The CEATI Dam Safety Interest Group (DSIG) working group on embankment erosion and breach modelling has evaluated three physically-based numerical models used to simulate embankment erosion and breach development. The three models identified by the group were considered to be good candidates for further development and future integration into flood modelling software. The evaluation utilized 7 case studies comprising three large-scale tests carried out in Norway (5- to 6-m high embankments); two large-scale tests from the USA (1.75-m high embankments); and the prototype failures of the Oros (Brazil) and Banqiao (China) dams. The breach models evaluated were SIMBA, HR-BREACH, and FIREBIRD BREACH. Results of the evaluation are presented along with details of the continued development of two of the three models (HR BREACH and SIMBA).