Nonburied Riprap Mattress Sizing for Single Piers in the Presence of Bedforms
Publication: Journal of Hydraulic Engineering
Volume 141, Issue 6
Abstract
The present study focuses on riprap protection at single piers under live-bed conditions. The riprap mattress is displayed so that its top is leveled with the surrounding river bed, for ease in the construction process. Over 48 laboratory experiments have been carried out to understand the trend of the required riprap mattress width to protect single piers against edge and bedform undermining failures. The influence of bedform height on the required width is emphasized. A simple expression is given to calculate the required riprap mattress width; for low sediment transport rates the expressions given in the literature for clear-water conditions are recovered.
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Acknowledgments
Gonzalo Simarro is supported by the Spanish government through the Ramón y Cajal program. All three authors express their gratitude to Eduardo Díaz for his contribution in preparing the experiments. The reviewers are also acknowledged for their comments and suggestions.
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Information
Published In
Journal of Hydraulic Engineering
Volume 141 • Issue 6 • June 2015
Copyright
© 2015 American Society of Civil Engineers.
History
Received: Sep 18, 2013
Accepted: Jan 9, 2015
Published online: Feb 18, 2015
Published in print: Jun 1, 2015
Discussion open until: Jul 18, 2015
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