Clear-water scour evolution at dual bridge piers

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Date

2017-04-01

Author

Yilmaz, Meriç
Yanmaz, Ali Melih
Köken, Mete

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For the efficient design of bridge pier footings, computation of time-evolution of scour depth around bridge piers is essential. In this paper, a semi-empirical model is developed to estimate the temporal variation of clear-water scour depth at a couple of identical cylindrical uniform piers in tandem arrangement. The experiments are carried out using different pier size, pier spacing, and flow intensities. The model development is based on sediment continuity approach and volumetric sediment transport rate from the scour hole using a sediment pickup function. The model results are presented as design charts giving the relation between dimensionless scour depth and time for practical use. Results of the proposed model are in relatively good agreement with the experimental results, in the tested range.

Subject Keywords

Bridge, Pier group, Clear-water scour, Sediment pickup

URI

https://hdl.handle.net/11511/47588

Journal

CANADIAN JOURNAL OF CIVIL ENGINEERING

DOI

https://doi.org/10.1139/cjce-2016-0053

Collections

Department of Civil Engineering, Article

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Citation Formats

M. Yilmaz, A. M. Yanmaz, and M. Köken, “Clear-water scour evolution at dual bridge piers,” CANADIAN JOURNAL OF CIVIL ENGINEERING, pp. 298–307, 2017, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/47588.