Abstract
Some features of flow and scouring around spur-dike-like structures (or abutments) are discussed based on experiments under clear-water scouring. A simplified analytical model for the prediction of the maximum scour depth around these kinds of structures is developed by considering flow concentration to a restricted region in the scour hole. The model predicts scour depth at sloped-wall as well as at verticalwall abutments, being verified by the available data and previous formulae. Finally, a model constant for flow concentration is identified by the inversion of experimental data, and an interpolated analytical model for the maximum scour depth under low and high tractive forces.
