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Title:
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Verificatie van de modelmatig beschreven afdichting van een bagger-speciedepot volgens het ZV&ZH-principe
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Author(s):
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Published by:
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Publication date:
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ECN
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1996
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ECN report number:
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Document type:
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ECN-C--95-111
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ECN publication
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Number of pages:
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Full text:
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63
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Download PDF
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Abstract:
The title model describes the velocity of the sealing process on thebasis of chemical and physical parameters. The investigation aims at the
verification of the modelled performances of the seal. The parameter by which
the quality of the seal is predicted is called the RC-factor, describing the
diffusion limitation in spoil depots. It indicates the enlargement of the
path, realized by the formed seal. The values RC = 1, 2, 3, etc. are equal to
path enlargements of 10 cm, 100 cm, 1000 cm, etc., respectively. Several
factors, applied in the modelling study, are investigated and verified on the
basis of the results of laboratory experiments. Important factors are the
location of the precipitate formation, the amount of precipitate, diffusion
velocities in spoil and the alkaline reactant layer. From the laboratory
experiments it appears that the predicted factors agree well with the
experimental results. It is concluded that the modelling of the sealing of a
dredge spoil depot on the basis of self-forming and self-recovering sealing
design predicts results, confirmed by bench-scale experiments. The formed
seal fulfills the required sealing demands. 20 figs., 13 refs., 10 refs., 1
appendix
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