Experimental study of scour around bridge piers of different arrangements with same aspect ratio

Vijayasree, B. and Eldho, T. (2016) Experimental study of scour around bridge piers of different arrangements with same aspect ratio. In: ICSE 2016 (8th International Conference on Scour and Erosion), 12-15 September 2016, Oxford, UK.

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Abstract

Scour around bridge piers is a challenging problem faced by bridge engineers. Scour is caused by the horse-shoe vortex formed due to the presence of the pier obstructing the flow. The behaviour of horse-shoe vortex differs according to the arrangement of piers. The flow pattern is different for a group of piers and a solid pier thereby creating different scour patterns. In this paper, the scour around bridge piers of different arrangements with same aspect ratio is investigated in a laboratory flume. All three arrangements studied have an aspect ratio (L/B) of 5.The experimental flume is 7.5m long,0.3m wide and 0.6m deep with a re-circulating facility. The results obtained showed that scour volume is considerably reduced around a single solid pier compared to the combinations of piers. Further, the flow field becomes complex due to the combination of piers.

Item Type: Conference or Workshop Item (Paper)
Subjects: Coasts > Sediment transport and scour
Divisions: Floods
Coastal
Depositing User: Unnamed user with email i.services@hrwallingford.com
Date Deposited: 02 Apr 2020 09:52
Last Modified: 02 Apr 2020 09:52
URI: http://eprints.hrwallingford.com/id/eprint/1176

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