| Issue |
E3S Web Conf.
Volume 144, 2020
The 2nd International Symposium on Water Resource and Environmental Management (WREM 2019)
|
|
|---|---|---|
| Article Number | 01008 | |
| Number of page(s) | 7 | |
| DOI | https://doi.org/10.1051/e3sconf/202014401008 | |
| Published online | 27 January 2020 | |
Local Scour of Bridge Pier Sited on a Multi-Layered Sedimentary Bed in Rivers
1
CCCC Road & Bridge Special Engineering Co., Ltd., Wuhan, Hubei 430071, China
2
SKLOE, CISSE, School of Naval Architecture, Ocean & Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
* Corresponding author: zmx8888@sjtu.edu.cn
The riverbeds or sea beds are usually composed of multi-layers of sediments. The scour around bridge piers sited on such beds is vital to the bridge safety, but is still very difficult to be predicated as its complicated interaction between the flow and bed layers. A simple model is proposed in this study for calculating the local scour maximum depth around bridge piers sited on multi-layer of sedimentary bed, which is based on HEC-18 formula revised by Richardson and Davis (2001) and the formula of the repose angle of sediment particles proposed by Cheng (1993). This model considers the particle sorting when the scour proceeds. An application of the model into the local scour depth of Guopan bridge pier sited on the Weihe River bed in Baoji city of China preliminarily demonstrates its reliability to calculate the local scour maximum depth around bridge piers sited on multi-layer of sedimentary bed.
© The Authors, published by EDP Sciences, 2020
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