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Modelling the effect of sediment coarseness on local scour at wide bridge piers

Ahmad, Nordila and Mohammed, Thamer Ahmed and Melville, Bruce W. and Ali, Faisal and Yusuf, Badronnisa (2017) Modelling the effect of sediment coarseness on local scour at wide bridge piers. Pertanika Journal of Science & Technology, 25 (1). pp. 191-200. ISSN 0128-7680; ESSN: 2231-8526

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Abstract

Experimental data from a physical model of scouring around a cylindrical wide pier embedded in two types of uniform sediment beds are presented. The effects of sediment sizes and various pier widths on scour development and equilibrium scour depth of wide bridge piers are described. Existing literature suggest that the empirical scour prediction equations based on laboratory data over-predict scour depths for large structures. The present study has attempted to fill this gap for a cylindrical wide pier. Further, equations for the estimation of non-dimensional maximum scour depth for a wide cylindrical pier embedded in uniform sediment were proposed as functions of the sediment coarseness.

Item Type:Article
Keyword:Physical model; Scour; Wide piers; Uniform sediment; Sediment coarseness
Faculty or Institute:Faculty of Engineering
Publisher:Universiti Putra Malaysia Press
ID Code:51612
Deposited By: Nabilah Mustapa
Deposited On:30 Mar 2017 18:27
Last Modified:30 Mar 2017 18:48

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