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Sediment transport simulation in an armoured stream

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Abstract

Improved methods of calculating bed material stability and transport must be developed for a gravel bed stream having an armoured surface in order to use the HEC-6 model to examine channel change. Good possibilities exist for use of a two layer model based on the Schoklitsch and the Einstein-Brown transport equations. In Einstein-Brown the D35 of the armour is used for stabilities and the D50 of the bed (sub-surface) is used for transport. Data on the armour and sub-surface size distribution needs to be obtained as part of a bed material study in a gravel bed river; a "shovel" sample is not adequate. The Meyer-Peter, Muller equation should not be applied to a gravel bed stream with an armoured surface to estimate the initiation of transport or for calculation of transport at low effective bed shear stress.

Additional publication details

Publication type Book
Publication Subtype Conference publication
Title Sediment transport simulation in an armoured stream
Year Published 1986
Language English
Publisher Subcommittee on Sedimentation of the Interagency Advisory Committee on Water Data
Publisher location Washington, D.C.
Description 11 p.
Larger Work Title Proceedings of the Fourth Federal Interagency Sedimentation Conference
Conference Title Fourth Federal Interagency Sedimentation Conference
Conference Location Las Vegas, NV
Conference Date 1986-03-24T00:00:00
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