Comparing overflow and wave-overtopping induced breach initiation mechanisms in an embankment breach experiment

Conference paper (2016)

Authors

M. van Damme Hydraulic Structures and Flood Risk - CEG
L.A. Ponsioen Servicedesks
M. Herrero Huerta Optical and Laser Remote Sensing - CEG
Research Group
Hydraulic Structures and Flood Risk (CEG) (TU Delft)
Copyright: © 2016 M. van Damme, L.A. Ponsioen, M. Herrero Huerta, P Peeters
DOI: https://doi.org/10.1051/e3sconf/20160703004
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Published Date

2016

Language

English

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Faculty

Civil Engineering & Geosciences

Department

Hydraulic Engineering

Research Group

Hydraulic Structures and Flood Risk

Abstract

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.