Journal ArticleDOI
Characteristics of developing scour-holes at a sand-embedded cylinder
TLDR
In this paper, an experimental installation using a laser distance sensor (LDS) and precision step-motors was conducted with a sand-embedded 0.2 m diameter circular cylinder.About:
This article is published in International Journal of Sediment Research.The article was published on 2008-09-01. It has received 70 citations till now. The article focuses on the topics: Cylinder.read more
Citations
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Journal ArticleDOI
The Science behind Scour at Bridge Foundations: A Review
TL;DR: In this paper, the authors provide an up-to-date, comprehensive, and holistic literature review of the problem of scour at bridge foundations, with a focus on the following topics: sediment particle motion, physical modelling and controlling dimensionless scour parameters; scour estimates encompassing empirical models, numerical frameworks, data-driven methods, and non-deterministic approaches; current approach for assessment and design of bridges against scour; and, research needs and future avenues.
Journal ArticleDOI
Equilibrium scour depths around piles in noncohesive sediments under currents and waves
TL;DR: In this article, a universal formula for the estimation of equilibrium scour depth around a single cylindrical pile under the action of steady currents, tidal and short waves is presented.
Journal ArticleDOI
Controls on local scour and deposition induced by obstacles in fluvial environments
Thomas Euler,Jürgen Herget +1 more
TL;DR: In this paper, a process-based method was developed that relates certain dependent morphometric variables to an adapted obstacle Reynolds number, which was applied by conducting experiments in a laboratory flume and validated against other laboratory and field data.
Journal ArticleDOI
Application of ANFIS and LR in prediction of scour depth in bridges
TL;DR: In this paper, the Adaptive Network-based Fuzzy Inference System (ANFIS) was used to predict the scour depth in bridge piers with and without Epipremnum aureum.
Journal ArticleDOI
Three-dimensional mesoscale modelling of multi-span masonry arch bridges subjected to scour
TL;DR: In this article, a three-dimensional modeling strategy for describing the behavior of multi-span masonry arch bridges subjected to scour at the base of the pier shallow foundations is presented.
References
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Journal ArticleDOI
Time scale for local scour at bridge piers
Bruce W. Melville,Bruce W. Melville,Bruce W. Melville,Yee-Meng Chiew,Yee-Meng Chiew,Yee-Meng Chiew +5 more
TL;DR: In this article, the authors studied the influence of flow duration on the depth of local scour at bridge piers in uniform sand beds and showed that the scour depth after 10% of the time to equilibrium is between about 50% and 80% of equilibrium scour depths, depending on the approach flow velocity.
Journal ArticleDOI
Numerical and experimental investigation of flow and scour around a circular pile
TL;DR: In this article, a three-dimensional model of a vertical circular pile exposed to a steady current is studied numerically and experimentally, which is applicable to cases where the Froude number is small (Fr < 0(0.2)).
Journal ArticleDOI
Characteristics of Horseshoe Vortex in Developing Scour Holes at Piers
Subhasish Dey,Rajkumar V. Raikar +1 more
TL;DR: In this article, an experimental study on the turbulent horseshoe vortex flow within the developing (intermediate stages and equilibrium) scour holes at cylindrical piers measured by an acoustic Doppler velocimeter (ADV) is presented.
Journal ArticleDOI
Experimental Investigation of Clear-Water Local Scour at Pile Groups
TL;DR: In this paper, a variety of conditions including different pile group arrangements, spacing, flow rates, and sediment grain sizes are considered to predict the maximum local scour depth for the pile groups.