NDLI: Breaching of fluvial dykes: Influence of the dyke geometry

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Breaching of fluvial dykes: Influence of the dyke geometry

Content Provider	Scilit
Author	Schmitz, Vincent Erpicum, Sébastien Rifai, Ismail Abderrezzak, Kamal El Kadi Archambeau, Pierre Pirotton, Michel Dewals, Benjamin
Copyright Year	2020
Description	Fluvial dyke breaching is a major concern for flood risk management; but the mechanisms of dyke breaching remain incompletely understood. We report here on forty (40) laboratory tests performed to assess the influence of the geometry of dykes made of non-cohesive sediments on the evolution of the breach discharge. Three parameters were systematically varied: the side slopes of the dyke and its crest width. Each geometric configuration was tested for several main channel inflow discharges. Results show that the breach discharge grows faster when the dyke volume becomes smaller and when the inflow discharge is increased. All geometrical parameters were then lumped into a single non-dimensional parameter and a characteristic time was defined to quantify the growth rate of the breach discharge. For a given inflow discharge, the proposed characteristic time increases linearly with the non-dimensional parameter. Book Name: River Flow 2020
Related Links	https://content.taylorfrancis.com/books/download?dac=C2020-0-17797-6&isbn=9781003110958&doi=10.1201/b22619-87&format=pdf
Ending Page	620
Page Count	4
Starting Page	617
DOI	10.1201/b22619-87
Language	English
Publisher	Informa UK Limited
Publisher Date	2020-08-27
Access Restriction	Open
Subject Keyword	Book Name: River Flow 2020 Water Science and Technology Evolution Geometry Geometrical Fluvial Inflow Discharge Breach Discharge
Content Type	Text
Resource Type	Chapter

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