Abstract
Scouring is one of the major threat to the stability of bridge piers. Both clear and live bed scour
conditions are different phenomena and should be evaluated individually. In this evaluation, the
available clear water scour prediction equations are evaluated using available laboratory and field
data. The overall performance of these equations is quantified by using statistical parameters, namely
‘Sum of squared errors’, ‘Mean Absolute error’ and ‘Root Mean square error’. The results show that
no single equation can said to be accurate. The top-ranked three equations which manifest better
estimation of clear water scour depth are Sheppard & Miller, Molinas and Gao equations,
respectively
Vaiza Shiraz, Abdul Sattar Shakir, Noor Muhammad Khan. (2015) Ranking Analysis of Clear Water Scour Depth Equations at Bridge Piers, Pakistan Journal of Engineering and Applied Sciences, VOLUME 16, Issue 1.
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