Comparing overflow and wave-overtopping induced breach initiation mechanisms in an embankment breach experiment
van Damme, M.; Ponsioen, L.; Herrero, M.; Peeters, P. (2016). Comparing overflow and wave-overtopping induced breach initiation mechanisms in an embankment breach experiment, in: 3rd European Conference on Flood Risk Management (FLOODrisk 2016). E3S Web of Conferences, 7: pp. [1-9]. https://dx.doi.org/10.1051/e3sconf/20160703004
As part of the SAFElevee project Delft University of Technology collabored with Flanders Hydraulics Research, and Infram B.V. in the preperation and execution of a full scale embankment breach experiment in November 2015. This breach experiment was performed on an 3.5m high embankment with a sand core and clay outer layer situated along the tidal river Scheldt in Belgium near Schellebelle. During the experiment a wave overtopping simulator and overflow simulator were used to initiate a breach. Both simulators were placed near the top of the waterside slope. The use of the simulators facilitated comparison between the effects of continueous overflow and the effects of intermittent wave overtopping. This paper presents the data collected during the experiment, describe the development of hypotheses on the failure processes using the latest insights, and comment on the failure initiation process of a grass covered flood embankment with a clay outer layer and a sandy core.
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