Research Article
May 1963
An Analysis of Relief Bridge Scour
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VIEW THE REPLYPublication: Journal of the Hydraulics Division
Volume 89, Issue 3
Abstract
Based on the proposition that the limit of clear-water scour is a boundary shear equal to the critical tractive force, analytical relationships are obtained for the scour in a long contraction, at an abutment, and around a pier. The pier and abutment solutions make use of the assumption that the flow beyond the scour hole can be ignored and that the depth of scour at the pier or abutment is a multiple r of the scour in the equivalent long contraction. An expression for the active phase of scour is obtained using a simplified transport equation. Comparison of predictions with measurements from several laboratories is reasonably satisfactory.
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Published In
Journal of the Hydraulics Division
Volume 89 • Issue 3 • May 1963
Pages: 93 - 118
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© 1963 American Society of Civil Engineers.
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Published in print: May 1963
Published online: Feb 3, 2021
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Authors
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Emmett M. Laursen, M.ASCE
Prof. and Head, Dept. of Civ. Engrg., The Univ. of Arizona, Tucson, Ariz.
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