Publicaties | Kaarten

nieuwe zoekopdracht

[ meld een fout in dit record ]mandje (0): toevoegen | toon Print deze pagina
Modelling impact of dredging and dumping in ebb-flood channel systems
(2004). Modelling impact of dredging and dumping in ebb-flood channel systems, in: Hibma, A. Morfodynamisch modelleren van estuarine plaat-geul systemen = Morphodynamic modelling of estuarine channel-shoal systems. Communications on Hydraulic and Geotechnical Engineering, 04-3: pp. 93-108
In: Hibma, A. (2004). Morfodynamisch modelleren van estuarine plaat-geul systemen = Morphodynamic modelling of estuarine channel-shoal systems. Communications on Hydraulic and Geotechnical Engineering, 04-3. PhD Thesis. Technische Universiteit Delft: Delft. ISBN 90-9017987-9. 143 pp., meer
In: Communications on Hydraulic and Geotechnical Engineering. Delft University of Technology. Department of Civil Engineering: Delft. ISSN 0169-6548, meer
Beschikbaar in
Author keywords
    channel hydraulics; dredge spoil; dredging; estuarine environment; morphodynamics; numerical model; sediment transport; Benelux; Eurasia; Europe; Netherlands; Western Europe; Westerschelde; Zeeland
Abstract
    For a channel shoal system in a funnel-shaped basin the impact of dredging and dumping is investigated using a complex process-based model. First, the residual flow and sediment transport circulations are analysed for the channel-shoal pattern, which has emerged after a long-term model simulation. Results are compared to the Western Scheldt estuary, which formed the inspiration for this study. Subsequently, different dredge and dump scenario's are modelled, according to a conceptual model, in which ebb- and flood channels and enclosed shoals form morphodynamic units (cells) with their own sediment circulation. Model results show that dumping sediment in a channel further reduces the channel depth and induces erosion in the opposite channel, which enhances tilting of the cross-section of the cell and eventually can lead to the degeneration of a multiple channel system onto a single channel. The impact of different dredging and dumping cases agrees with results from a stability analysis. This means that this type of model applied to a realistic geometry can potentially be used for better prediction of the impact of human interventions.
Alle informatie in het Integrated Marine Information System (IMIS) valt onder het VLIZ Privacy beleid Top 
IMIS is ontwikkeld en wordt gehost door het VLIZ.