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Volume 8
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10.3390/jmse8010004
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Review

Local Scour for Vertical Piles in Steady Currents: Review of Mechanisms, Influencing Factors and Empirical Equations

by
Bingchen Liang
1,
Shengtao Du
1,*,
Xinying Pan
1 and
Libang Zhang
2
1
College of Engineering, Ocean University of China, Qingdao 266000, China
2
Shandong Province Key Laboratory of Ocean Engineering, Ocean University of China, Qingdao 266100, China
*
Author to whom correspondence should be addressed.
J. Mar. Sci. Eng. 2020, 8(1), 4; https://doi.org/10.3390/jmse8010004
Received: 19 November 2019 / Revised: 29 November 2019 / Accepted: 5 December 2019 / Published: 19 December 2019
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Abstract

Scour induced by currents is one of the main causes of the bridge failure in rivers. Fundamental knowledge and mechanisms on scour processes due to currents are often taken as a basis for scour studies, which are the focus of this review. Scour development induced by waves and in combined wave–current conditions are also briefly discussed. For the design of structure foundations, the maximum scour depths need to be estimated. The mechanisms of local scour and predictions of maximum local scour depths have been studied extensively for many years. Despite the complexity of the scour process, a lot of satisfying results and progresses have been achieved by many investigators. In order to get a comprehensive review of local scour for vertical piles, major progresses made by researchers are summarized in this review. In particular, maximum scour depth influencing factors including flow intensity, sediments, pile parameters and time are analyzed with experimental data. A few empirical equations referring to temporary scour depth and maximum scour depth were classified with their expressing forms. Finally, conclusions and future research directions are addressed. View Full-Text
Keywords: scour depth; time; experimental tests; horseshoe vortex; literature review scour depth; time; experimental tests; horseshoe vortex; literature review
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MDPI and ACS Style

Liang, B.; Du, S.; Pan, X.; Zhang, L. Local Scour for Vertical Piles in Steady Currents: Review of Mechanisms, Influencing Factors and Empirical Equations. J. Mar. Sci. Eng. 2020, 8, 4. https://doi.org/10.3390/jmse8010004

AMA Style

Liang B, Du S, Pan X, Zhang L. Local Scour for Vertical Piles in Steady Currents: Review of Mechanisms, Influencing Factors and Empirical Equations. Journal of Marine Science and Engineering. 2020; 8(1):4. https://doi.org/10.3390/jmse8010004

Chicago/Turabian Style

Liang, Bingchen, Shengtao Du, Xinying Pan, and Libang Zhang. 2020. "Local Scour for Vertical Piles in Steady Currents: Review of Mechanisms, Influencing Factors and Empirical Equations" Journal of Marine Science and Engineering 8, no. 1: 4. https://doi.org/10.3390/jmse8010004

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