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Article

Bridge Pier Scour under Ice Cover

Department of Civil Engineering, University of Ottawa, 161 Louis Pasteur Drive, Ottawa, ON K1N 6N5, Canada
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Author to whom correspondence should be addressed.
Academic Editor: Jueyi Sui
Water 2021, 13(4), 536; https://doi.org/10.3390/w13040536
Received: 29 January 2021 / Revised: 15 February 2021 / Accepted: 17 February 2021 / Published: 19 February 2021
(This article belongs to the Special Issue River Hydraulics under Ice-Covered Flow Conditions)
Bridge pier scour is a complex process, which is influenced by many parameters, including the presence of ice cover around piers. To better understand the influence of ice on bridge pier scour, an artificial ice cover, equipped with either a smooth or a rough surface, was constructed and tested experimentally. The ice cover was positioned on the surface of the water and submerged to specified depths in order to replicate floating and fixed (pressurized) ice cover conditions, respectively. During each test, a velocity profile was collected beneath the ice cover, and after each test, a three-dimensional scan of the bed was collected to compare the resulting scour. It was discovered that the presence of an ice cover around a bridge pier increased pier scour under all conditions. Furthermore, as the ice cover was submerged deeper into the flow, the flow velocity increased, and greater scour resulted. For each level of submergence, the rough ice cover yielded increased scour depths compared to the smooth ice cover. View Full-Text
Keywords: local scour; ice cover; ice jam; bridge pier; sediment transport; river ice hydraulics local scour; ice cover; ice jam; bridge pier; sediment transport; river ice hydraulics
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MDPI and ACS Style

Valela, C.; Sirianni, D.A.B.; Nistor, I.; Rennie, C.D.; Almansour, H. Bridge Pier Scour under Ice Cover. Water 2021, 13, 536. https://doi.org/10.3390/w13040536

AMA Style

Valela C, Sirianni DAB, Nistor I, Rennie CD, Almansour H. Bridge Pier Scour under Ice Cover. Water. 2021; 13(4):536. https://doi.org/10.3390/w13040536

Chicago/Turabian Style

Valela, Christopher; Sirianni, Dario A.B.; Nistor, Ioan; Rennie, Colin D.; Almansour, Husham. 2021. "Bridge Pier Scour under Ice Cover" Water 13, no. 4: 536. https://doi.org/10.3390/w13040536

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