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

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

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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
ID Code:1675
Deposited On:20 Nov 2018 14:13
Last Modified:20 Nov 2018 14:13

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