Research Article
Jul 1976
Sediment Flushing after Dredging in Tidal Bays
Authors: Klas Cederwall and Törbjorn SvenssonAuthor Affiliations
Publication: Journal of the Hydraulics Division
Volume 102, Issue 7
Abstract
A one-dimensional dispersion model for tidal flushing of suspended material has been formulated. It is suggested that this model can be used to predict the escape of suspended material from an astuarine dredging area out into the adjacent waters. The dispersion model includes a sedimentation function to reproduce the effect of resedimentation. Calibration of the model was carried out in a restoration area by means of in-situ tracer tests and salinity measurements to establish the dispersive properties of the water body. The settling characteristics of the upper sediment layer were established by sedimentation analysis of bottom samples from the dredging area, divided into an organic (polluted) top layer and the underlying inorganic sediment.
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Published In
Journal of the Hydraulics Division
Volume 102 • Issue 7 • July 1976
Pages: 935 - 953
Copyright
© 1976 American Society of Civil Engineers.
History
Published in print: Jul 1976
Published online: Feb 3, 2021
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Klas Cederwall
Prof., Hydr. Dept., Royal Inst. of Tech., Stockholm, Sweden
Törbjorn Svensson
Research Engr., Hydr. Div., Chalmers Inst. of Tech., Göteborg, Sweden
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