Abstract

A strong tidal current whose direction reverses periodically causes a complex local scour around a bridge pier and this scour has a bad influence on the stability of the bridge. This local scour is caused by an unbalance between the input and output sediment transport rates around the pier. In this paper some basic features of a local scour around a rectangular pier in a tidal current are investigated experimentally and, using these data, further analyses on the similarity between a model and its prototype are made.

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