DONATE

IAHR Document Library


« Back to Library Homepage « Journal of Hydraulic Research 1979 Issue 4

HYDRAULICS OF A LARGE CHANNEL PAVED WITH BOULDERS

Author(s): S. M. Thompson; P. L. Campbell

Linked Author(s):

Keywords:

Abstract: Experience is described of a 41 m wide by 308 m long, open channel on a 0.052 slope, constructed of loose boulders and through which flows up to 140 m3 are passed. A new expression for the Darcy friction coefficient is proposed: f = ((1 − 0.1ks /R)2log10 (12R/ks ))−2 with a theory based on published laboratory data. This equation with ks = 4.5D is shown to fit the large channel, and other published field data. Some observations are made on both the geometry and the stability of the paving.

DOI: https://doi.org/10.1080/00221687909499577

Year: 1979

Copyright © 2022 International Association for Hydro-Environment Engineering and Research. All rights reserved. | Terms and Conditions