Propose the new method for abutment live - bed scour - depth estimation
Abstract
Based on results of available model testing and prototype observations, and evaluation of an expert panel for abutment scour, the paper has proposed a new method for abutment live-bed scour-depth estimation, starting to analyze flow field around the bridge abutment. This method provided abutment live-bed scour equations considering a range of abutment types, abutment locations, flow conditions, and sediment transport conditions. These equations are to use contraction scour as the starting calculation for abutment scour and apply a factor to account for large-scale turbulence developed in the vicinity of the abutment.
Keywords: Abutment/embankment scour; pier scour; contraction scour; clear-water scour; live-bed scour.
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