Temporal scour development at bridge abutments with a collar

Date

2007-04-01

Author

Kumcu, Serife Yurdaguel
Goegues, Mustafa
Koekpinar, Mehmet Ali

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This study investigated the reduction of scour around a vertical-wall bridge abutment using rectangular collars for clear-water flow conditions over uniform sediment particles in a laboratory flume. Collars of different sizes and at different elevations were tested to determine the temporal variation of scour depth around the bridge abutment. The development of scour around the abutments with and without a collar for a time period of 6 h was studied, and observed scour depths were compared. Experimental results showed that, in addition to protecting the abutments against erosion, the addition of a collar is effective in reducing the rate of temporal scour development. A comparison of the present results with those from previous studies revealed that the effectiveness of a collar increases with a decrease in the elevation of the collar and an increase in the width of the collar.

Subject Keywords

Civil and Structural Engineering, General Environmental Science

URI

https://hdl.handle.net/11511/66190

Journal

CANADIAN JOURNAL OF CIVIL ENGINEERING

DOI

https://doi.org/10.1139/l06-146

Collections

Department of Civil Engineering, Article

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Citation Formats

S. Y. Kumcu, M. Goegues, and M. A. Koekpinar, “Temporal scour development at bridge abutments with a collar,” CANADIAN JOURNAL OF CIVIL ENGINEERING, pp. 549–556, 2007, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/66190.