Influence of Wood Debris Accumulation on Bridge Pier Scour
Publication: Journal of Hydraulic Engineering
Volume 137, Issue 2
Abstract
This note deals with the influence of debris accumulation on scour around bridge piers. Clear-water experiments in different hydraulic conditions have been carried out with three wood debris shapes: rectangular, triangular, and cylindrical. A wide range of debris thickness and width were studied in order to determine their influence on the maximum scour hole depth temporal evolution. The ratio of the pier diameter to the channel width was varied between 0.05 and 0.12 with total bridge contractions up to 20%. A proposed relation presents a simple design procedure to predict the increase in scour depth, which mainly depends on the flow contraction due to the debris accumulation.
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Information
Published In
Journal of Hydraulic Engineering
Volume 137 • Issue 2 • February 2011
Pages: 254 - 261
Copyright
© 2011 ASCE.
History
Received: Jun 26, 2008
Accepted: Jun 1, 2010
Published online: Jun 3, 2010
Published in print: Feb 2011
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