Location
Madrid, Spain
Session
Session 4
Start Date
12-1-2022 10:15 AM
Description
Excessive rainfall and extensive flooding within the context of a changing environment show the fact that resistance to overflowing erosion of embankment dams needs to be better assessed because of the increasing number of dam failures caused by overflowing, implying the necessity of a reaction to this kind of challenges. Better understandings of the embankment failure processes and the dominant parameters affecting these kinds of failures are necessary for predicting and modeling the breach processes. Acquiring this better understanding of the physical processes and a numerical prediction capability requires progressing in parallel in laboratory and field test investigations of embankment breaches and analyzing case studies of real-life embankment failures. It is interesting to notice an increasing number of cascade failures that led to the destruction of embankment dams. Even though cascade reservoirs are built in many river basins nowadays, studies on sequential embankment dam-break in cascade reservoirs are still few and difficult to perform. Therefore, improving numerical simulations and risk analyses of cascade reservoir dam breaks are of practical engineering significance. This paper aims to describe several cascade failures with embankment dams breaking by overflowing to point out the lessons to learn related to the comprehension of the main physical processes governing these events.
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Included in
Recent Case Histories of Cascade Failures and Overflowing Events of Embankment Dams
Madrid, Spain
Excessive rainfall and extensive flooding within the context of a changing environment show the fact that resistance to overflowing erosion of embankment dams needs to be better assessed because of the increasing number of dam failures caused by overflowing, implying the necessity of a reaction to this kind of challenges. Better understandings of the embankment failure processes and the dominant parameters affecting these kinds of failures are necessary for predicting and modeling the breach processes. Acquiring this better understanding of the physical processes and a numerical prediction capability requires progressing in parallel in laboratory and field test investigations of embankment breaches and analyzing case studies of real-life embankment failures. It is interesting to notice an increasing number of cascade failures that led to the destruction of embankment dams. Even though cascade reservoirs are built in many river basins nowadays, studies on sequential embankment dam-break in cascade reservoirs are still few and difficult to perform. Therefore, improving numerical simulations and risk analyses of cascade reservoir dam breaks are of practical engineering significance. This paper aims to describe several cascade failures with embankment dams breaking by overflowing to point out the lessons to learn related to the comprehension of the main physical processes governing these events.