Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.14365/2492
Title: Time Dependent Live-bed Scour Around Circular Piers under Flood Waves
Authors: Gumgum, Firat
Guney, Mehmet Sukru
Keywords: live-bed scour
bridge pier
flood waves
unsteady flow
Local Scour
Bridge
Evolution
Publisher: Budapest Univ Technology Economics
Abstract: The aim of this study is to investigate live-bed scour under unsteady flow. During the experiments, 16 different triangular hydrographs were generated. Circular piers with three different diameters were tested under these hydrographs. Uniform bed material of 1.63 mm diameter was used during the experiments. The effects of the peak flow rate, the duration of hydrographs and the pier diameter on scour were interpreted. It was observed that the dominant element of the scour was the flow rate during the rising limb and the sediment transport rate during the falling limb. Maximum scour depths took place near the peak flow and lower final scour depths occurred at the end of the hydrograph. Two empirical equations were derived to predict time dependent scour depth and maximum scour depth. Statistically significant determination coefficient values and scatter indices were obtained.
URI: https://doi.org/10.3311/PPci.14664
https://hdl.handle.net/20.500.14365/2492
ISSN: 0553-6626
Appears in Collections:Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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