Author(s): Tae Hoon Yoon; Yong Deuk Kim
Linked Author(s):
Keywords: Vegetation; Velocity reduction; Velocity distribution; Scour reduction
Abstract: Downstream flow variation due to a vegetation zone and its effect on scour around a bridge pier in an open channel were examined experimentally. With the vegetation zone the flow velocities in the vegetation layer are decreased substantially and the flow velocities above the top of the vegetation are increased by approximately 10% . Scour depth around a bridge pier located downstream the vegetation zone is significantly reduced and the reduction in the scour depth is influence by a number of factors such as the length and width of the vegetation zone, height and density of vegetation, and distance between the vegetation zone and the bridge pier.
Year: 2005