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REPORT
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Publication Number: FHWA-HRT-12-022
Date: May 2012

 

Pier Scour in Clear-Water Conditions With Non-Uniform Bed Materials

CHAPTER 6. CONCLUSIONS

After critical review of pier scour under clear-water conditions with non-uniform sediment mixtures, a scour mechanism for understanding pier scour processes and a scour depth equation for design were proposed. In general, pier scour results from flow-structure-sediment interactions, and equilibrium scour depth is determined by the flow-structure and flow-sediment interactions. The following conclusions are presented:

 

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