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Large-scale dike breaching experiments at Lillo in Belgium
Peeters, P.; Zhao, G.; de Vos, L.; Visser, P.J. (2014). Large-scale dike breaching experiments at Lillo in Belgium, in: Cheng, L. et al. (Ed.) (2015). Proceedings of the 7th International Conference on Scour and Erosion - ICSE 2014, The University of Western Australia, Perth, Australia, 2-4 December 2014. pp. 289-297
In: Cheng, L. et al. (Ed.) (2015). Proceedings of the 7th International Conference on Scour and Erosion - ICSE 2014, The University of Western Australia, Perth, Australia, 2-4 December 2014. CRC Press/Balkema: Leiden. ISBN 978-1-138-02732-9. XV, 818 pp., meer
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Documenttype: Congresbijdrage
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| Auteurs | | Top |
- Peeters, P., meer
- Zhao, G., meer
- de Vos, L.
- Visser, P.J.
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| Abstract |
Within the frame work of the realisation of the ‘Sigmaplan’ for the river Scheldt in Flanders (Belgium), two in situ dike breach tests following overflow were executed. The setup and outcomes of one of these field experiments executed at Lillo along the tidal river Scheldt in May 2012 are described in this paper. The height of the dike was around 3m high, the width of the crest was 6 m. However, the initiation gully reached only 1.5m above ground level. Results from laboratory tests on soil samples as well as in situ geotechnical surveys are discussed. During the experiments headcut migration and breach growth in width as well as water levels just upstream and downstream from the dike and (to some extend) flow velocities within the breach were monitored. The observed breach developments are compared with the stages of the breach erosion process as proposed in literature. Outcomes serve to better understand the complex physical processes of embankment breaching for detailed model development and validation as well as for optimized dike design and maintenance strategies. |
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