Backwater effect of multiple bridges along Huaihe River, China

Author:

Wang Hao1,Tang Hongwu2,Xu Xinhua3,Xiao Jianfeng4,Liang Dongfang5

Affiliation:

1. State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing, Jiangsu, China

2. State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing, Jiangsu, China (corresponding author: )

3. Huaihe River Commission of the Ministry of Water Resource, Bengbu, China

4. State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing, Jiangsu, China; Huaihe River Commission of the Ministry of Water Resource, Bengbu, China

5. Department of Engineering, University of Cambridge, Cambridge, UK

Abstract

This study investigated the backwater effect of the eight bridges along the Huaihe River in China using physical model experiments. The experimental data obtained were used to derive equations to parameterise the backwater effect of a single bridge. The cumulative effect of two bridges was then analysed, using the backwater effect of a single bridge as a reference. It was found that, in order to eliminate the cumulative effect, the minimum distance between two bridges should be no less than 215 times the bridge pier width.

Publisher

Thomas Telford Ltd.

Subject

Water Science and Technology

Reference17 articles.

1. Improving bridge afflux prediction for overbank flows

2. Effect of the Froude number on assessment of the bridge afflux

3. Charbeneau RJ and Holley ER (2001) Backwater Effects of Piers in Subcritical Flow. Center for Transportation Research, The University of Texas at Austin, Austin, TX, USA, Report FHWA/TX-0-1805-1.

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