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A rational stability approach for tidal inlets, including analysis of the effect of wave action

The main objective of this study is to evaluate the influence of wave exposure on the stability conditions of the cross-section of channels in the ebb tidal deltas. The hypothesis of equilibrium concentration, as proposed bij Di Silvio, has been used in combination with an appropiate sediment transport formulation. Analysis showed that an Engelund-Hansen's type of approach provided a reasonable basis for the given purpose. The analysis is applied to two major inlets on the Duch coast: Texel Inlet and Haringvliet Estuary, after closure. The results of the study show that the proposed method of evaluation is applicable for determining the stability profiles of tidal channels, in wave-protected areas as well as in ebb tidal deltas under the influence of wave action. It is found that the reults are sensitive to the value of some essential environmental parameters, such as median grain size and Chezy coefficient, which reduces the practical applicability to the findings in cases where this information is not abvailable. Futher studies are recommended on this issues.

Datum rapport
1 januari 2002
Auteurs
Dunsbergen, D.W., Gerritsen, F., Israel, C.G.
Auteur
Ministry of Transport, Public Works and Water Management = Ministerie van Verkeer en Waterstaat, Rijkswaterstaat, National Institute for Coastal and Marine Management = Rijksinstituut voor Kust en Zee (RWS, RIKZ); Franciscus Gerritsen, Daniël W. Duns...
Uitgever
RWS, RIKZ.
Annotatie 
37 p. 
graf., krt.
By order of Ministry of Transport, Public Works and Water Management = Ministerie van Verkeer en Waterstaat, Rijkswaterstaat, National Institute for Coastal and Marine Management = Rijksinstituut voor Kust en Zee (RWS, RIKZ) 
Prepared within the research program Kust*2005
With app.
With ref.
Documentnummer
39658