Local Scour of Bridge Pier Sited on a Multi-Layered Sedimentary Bed in Rivers

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...

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Main Authors: Yue Shaolin, Zhou Huan, Zhu Wenlong, Zhang Minxi
Format: Article
Language:English
Published: EDP Sciences 2020-01-01
Series:E3S Web of Conferences
Online Access:https://www.e3s-conferences.org/articles/e3sconf/pdf/2020/04/e3sconf_wrem2019_01008.pdf
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author Yue Shaolin
Zhou Huan
Zhu Wenlong
Zhang Minxi
author_facet Yue Shaolin
Zhou Huan
Zhu Wenlong
Zhang Minxi
author_sort Yue Shaolin
collection DOAJ
description 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.
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spelling doaj.art-17fff9b7be2a4be6b8f7bd2555998e8e2022-12-21T22:47:51ZengEDP SciencesE3S Web of Conferences2267-12422020-01-011440100810.1051/e3sconf/202014401008e3sconf_wrem2019_01008Local Scour of Bridge Pier Sited on a Multi-Layered Sedimentary Bed in RiversYue ShaolinZhou HuanZhu WenlongZhang MinxiThe 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.https://www.e3s-conferences.org/articles/e3sconf/pdf/2020/04/e3sconf_wrem2019_01008.pdf
spellingShingle Yue Shaolin
Zhou Huan
Zhu Wenlong
Zhang Minxi
Local Scour of Bridge Pier Sited on a Multi-Layered Sedimentary Bed in Rivers
E3S Web of Conferences
title Local Scour of Bridge Pier Sited on a Multi-Layered Sedimentary Bed in Rivers
title_full Local Scour of Bridge Pier Sited on a Multi-Layered Sedimentary Bed in Rivers
title_fullStr Local Scour of Bridge Pier Sited on a Multi-Layered Sedimentary Bed in Rivers
title_full_unstemmed Local Scour of Bridge Pier Sited on a Multi-Layered Sedimentary Bed in Rivers
title_short Local Scour of Bridge Pier Sited on a Multi-Layered Sedimentary Bed in Rivers
title_sort local scour of bridge pier sited on a multi layered sedimentary bed in rivers
url https://www.e3s-conferences.org/articles/e3sconf/pdf/2020/04/e3sconf_wrem2019_01008.pdf
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AT zhouhuan localscourofbridgepiersitedonamultilayeredsedimentarybedinrivers
AT zhuwenlong localscourofbridgepiersitedonamultilayeredsedimentarybedinrivers
AT zhangminxi localscourofbridgepiersitedonamultilayeredsedimentarybedinrivers