Plotection of Local Scour around Piers with Guide Wall and Slanting Plate attached Piers Surface

Abstract

Local scour around bridge piers are mainly caused by the action of the horseshoe vortex formed around the piers and the flow accelation due to the gradient of water level around piers.In this paper, the guide wall setted front piers and the slanting plate attached piers surface were examined for protect to local scour.The experimental results show that the scour depths are large degrade compared with usual method.