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Impact of Abutments and Vegetation Cover in the Floodplain on Scouring Around Bridge Piers: an Experimental Modeling by Milad Nokhbe Zaeim; Mojtaba Saneie is a Environmental Science article available to read on EtoBox.

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Scour around bridge piers and abutments are among the most important causes of bridge destruction worldwide. The present laboratory study aims to evaluate the scour around bridge piers in presence of abutment and vegetation cover in floodplain. The experiments were performed in a rectangular channel with a composite section with the width and length of 1.5 and 17 m, respectively, bottom width of 20 cm, and side slope of 45°. The flow depth in the main channel and floodplain was 18 and 8 cm, respectively, and the equilibrium time of the experiments was considered to be 3 h. The bridge pier shape, extent of contraction due to changes in the abutment length, and percent vegetation cover (PVC) in the floodplain were considered as effective variables in the scour around the bridge pier. The results indicated scour depth and volume increased with increasing the width-to-length ratio of the bridge pier and bridge abutment length. At the PVC of 1% and 2%, changes in the lengthto-width ratio of the bridge pier against dimensionless scour depth were ascending with increasing the width-to-length ratio of the bridge pier; however, these changes were descending at the PVC of 4%. Also, the param

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Author

Milad Nokhbe Zaeim; Mojtaba Saneie

Publisher

Springer Science and Business Media LLC

Published

2022

Language

EN

Field

Environmental Science (Physical Sciences)