Research Article
Dec 1974
Test of Scour Protection for Bridge Piers
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VIEW THE REPLYPublication: Journal of the Hydraulics Division
Volume 100, Issue 12
Abstract
If flood velocities concentrated by the area constriction at bridges remove material from under the bridge pier foundations, the pier may settle or collapse. The maximum depth of scour occurring during the passage of a flood peak is difficult to ascertain or to estimate by empirical formulas or model tests. To explore further the method of limiting the depth of scour by surrounding the pier with protective material, model tests were made covering a range of constriction percentages, depths of flow, and Froude numbers, using both round and elongated piers. After determining the extent of the scour hole formed during the passage of a simulated flood, the protection afforded by a layer of protective material was tested with a repetition of the same flood. If the material of the layer was large enough to resist being moved and had a grain-size distribution capable of preventing leaching, no scour hole formed. A special test showed protection remaining intact despite stream bed degradation.
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Published In
Journal of the Hydraulics Division
Volume 100 • Issue 12 • December 1974
Pages: 1773 - 1783
Copyright
© 1974 American Society of Civil Engineers.
History
Published in print: Dec 1974
Published online: Feb 3, 2021
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Authors
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Chesley J. Posey, F.ASCE
Prof. of Civ. Engrg., Univ. of Connecticut, Storrs, Conn
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.