Equilibrium Local Scour Depth Under Live-Bed Scour for Cylindrical Piers with Their Width Greater Than Three Meters Based on Field Data

Despite the numerous studies on local scour at piers conducted, very few of them applied pier local scour formulas based on field data, but mainly on the laboratory experimental data. Consequently, the scour depth is often biased larger than the actual one. This paper proposes a formula (UTCwp20-University of Transport and Communications for wide pier 2020) for piers 3 m wider (b or D) and field data set or live-bed scour from 68 publications in the USA, China and Russia, and recorded the best results compared to eight published formulas using the same data set.