Effect of Sand Movement on a Cohesive Substrate

Flume experiments investigated the effect of mobile sand on the erosion of cohesive beds. The fluid-induced stress alone was not enough to cause erosion, and sand motion as bed load was needed. Erosion rates and suspended sediment concentration were found to increase with increasing sand transport a...

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Bibliographic Details
Published inJournal of hydraulic engineering (New York, N.Y.) Vol. 130; no. 11; pp. 1123 - 1125
Main Authors Thompson, Charlotte E. L, Amos, Carl L
Format Journal Article
LanguageEnglish
Published American Society of Civil Engineers 01.11.2004
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TECHNICAL NOTES
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Summary:Flume experiments investigated the effect of mobile sand on the erosion of cohesive beds. The fluid-induced stress alone was not enough to cause erosion, and sand motion as bed load was needed. Erosion rates and suspended sediment concentration were found to increase with increasing sand transport and to decrease with increasing median grain size. The erosion rate was found to be at a maximum during saltation, intermediate during creep, and lowest during suspension.
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ISSN:0733-9429
1943-7900
DOI:10.1061/(ASCE)0733-9429(2004)130:11(1123)