Clear‐Water Scour at Cylindrical Piers

Abstract

The results of laboratory experiments on the clear‐water local scour of cohesionless bed sediment at cylindrical piers are presented. Based on the data, equilibrium depth of local scour is related to the particle size distribution of the bed sediment, mean particle size of the bed sediment, relative to the pier diameter, flow depth relative to both the pier diameter and the mean particle size of the bed sediment. A formula for estimating the maximum depth of local scour is also given.