Identification Techniques for Bank Erosion and Failure Processesby Bradley M. Comes, US Army Engineer Waterways, Experiment Station, Vicksburg, United States,
Abstract: The Hydraulics Laboratory of the US Army Engineer Waterways Experiment Station (WES) has developed techniques to design small flood-control channels. A component of this research is the investigation of a bank failure processes. The failure processes have been classified by type of failure and guidance is being developed to assist field investigators in identifying conditions under which each type of failure occurs. The process identification guidance consists of an evaluation procedure which includes an analysis of the area around the river valley, the relation of the channel to the valley, a channel description, and finally the bank characteristics. In the evaluation of the bank characteristics, guidance is provided on how to identify particular processes in action and their potential to contribute to failure under both pre- and post project conditions. The paper also presents a brief discussion of numerical work under investigation by the author that is related to bank failure.
Subject Headings: Failure analysis | Forensic engineering | Hydraulic design | Floods | Field tests | Numerical analysis | Erosion
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