Measuring the Structure of Mixed-Grain-Size Sediment Beds
Publication: Journal of Hydraulic Engineering
Volume 126, Issue 5
Abstract
A new sampling technique called wax coring is presented in this paper that enables the determination of the composition of the surface and subsurface of a sediment bed formed during flume experiments. A wax-impregnated circular core is removed from the bed and melted in a series of well-defined layers that are then sieved separately to provide data describing the variation with depth of the particle-size distribution. The volumetric equivalence of the grain-size distribution obtained for an internal layer is demonstrated theoretically and empirical data are obtained concerning the active layer concept that is often used in the modeling of mixed-grain-size sediment transport.
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Information & Authors
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Published In
Journal of Hydraulic Engineering
Volume 126 • Issue 5 • May 2000
Pages: 347 - 353
History
Received: Jun 9, 1998
Published online: May 1, 2000
Published in print: May 2000
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