Pressure-Flow Scour: A Reexamination of the HEC-18 Equation
Publication: Journal of Hydraulic Engineering
Volume 134, Issue 7
Abstract
Unsatisfactory features of the equation that is recommended in a standard reference on bridge scour (commonly known as HEC-18) for predicting pressure-flow scour are pointed out. These are found to stem from the basic model of the original regression analysis, which is argued to have suffered from a spurious correlation. An alternative best-fit and a separate design equation are proposed, together with a definition of the region where such equations may be expected to be applicable.
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References
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Information & Authors
Information
Published In
Journal of Hydraulic Engineering
Volume 134 • Issue 7 • July 2008
Pages: 1015 - 1020
Copyright
© 2008 ASCE.
History
Received: Feb 8, 2007
Accepted: Jul 22, 2007
Published online: Jul 1, 2008
Published in print: Jul 2008
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