2021
DOI: 10.3390/w13020152
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A Study on Interaction between Overfall Types and Scour at Bridge Piers with a Moving-Bed Experiment

Abstract: River slopes can be changed due to an extreme event, e.g., a large-scale earthquake. This can uplift a riverbed greatly and thereby change the behavior of the river flow into a free or submerged overfall. Corresponding damage, including extreme erosion, on bridge piers located in the river can take place due to the aforementioned flow conditions. A reconstructed bridge pier in the same location would also experience a similar impact if the flow condition is not changed. It is important to identify these phenom… Show more

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Cited by 7 publications
(3 citation statements)
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“…The above pioneering work generated much scientific and engineering interest in the following years. Varied empirical formulas have been proposed for the estimation of local scour due to drop structures and bridge piers under different conditions of structure types, approach flow, and bed material [6][7][8][9][10][11][12][13][14][15]. Such contributions are important to effectively control overfall-induced scour and diminish the scour around piers, an area that is influenced by scour hole.…”
Section: Introductionmentioning
confidence: 99%
“…The above pioneering work generated much scientific and engineering interest in the following years. Varied empirical formulas have been proposed for the estimation of local scour due to drop structures and bridge piers under different conditions of structure types, approach flow, and bed material [6][7][8][9][10][11][12][13][14][15]. Such contributions are important to effectively control overfall-induced scour and diminish the scour around piers, an area that is influenced by scour hole.…”
Section: Introductionmentioning
confidence: 99%
“…Such a tool is crucial in watershed conservation, especially in a world generating enormous data that requires super-fast models. In another instance, Lee et al [21] evaluates seven machine learning models for time-saving to estimate the rainfall-erosivity factor (R-factor) used in the Universal Soil Loss Equation (USLE). Their findings show that deep neural networks are very efficient estimating the R-factor given monthly precipitation, maximum daily precipitation, and maximum hourly precipitation.…”
mentioning
confidence: 99%
“…Finally, the article by Lee, Lu, and Huang [21] investigate the interaction between overfall types and scour at bridges. When a bridge pier is in the maximum scour location, it induces more scour due to disturbances caused by the water jet and the pier; hence, more attention is required to protect the pier.…”
mentioning
confidence: 99%