Bridge pier scour in cohesive soil: a review

摘要

Bridge failure due to local scour has stimulated the enthusiasm of many researchers to study the causes of scouring and to predict the ultimate scour depth at bridge foundation. A brief review of the state of artwork of investigation conducted on local scour at bridge pier in cohesive bed material is presented. Scour process and mechanism at bridge pier in cohesive and noncohesive soil are presented. The effects of parameters influencing local scour around bridge pier is discussed. Empirical equations for predicting ultimate scour depth at bridge pier embedded in cohesive soil are outlined. Comparisons of the equations are made considering two examples: one under laboratory condition and another under field condition.