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Effect of Cohesive and Non-Cohesive Soils on Equilibrium Scour Depth
Tikrit Journal of Engineering Sciences, 2007 In this research ,the effect of cohesive soils ( clay ) and non –cohesive soils sand on equilibrium scour depth was studied .Experiments were carried out on two types of clay and two types of sand as a bed material using an obstruction ( pier ) to create
Saleh Issa Khassaf
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Length Parameter for Scaling Abutment Scour Depth [PDF]
Water, 2020 Flow constriction caused by bridge abutment increases bed shear stress and thus enhances local scour. For scaling the maximum scour depth at the abutment, either abutment length or flow depth has been empirically used in previous studies. By performing a step-by-step analysis, this study proposes a new length scale, which is able to represent combined ...
Puer Xu, Niansheng Cheng, Maoxing Wei
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Numerical modeling of scour depth at side piers of the bridge
Journal of Computational and Applied Mathematics, 2015 Computational power and development of numerical models are new windows for simulation about flow and sediment transmission. The aim of this article is related to Numerical modeling of three-dimensional flow and sediment at the narrowing location of bridge. We selected the SSIM2 model because this model has high ability for numerical simulation.
Mohammad Ehteram, Amin Mahdavi Meymand
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Ain Shams Engineering Journal, 2013 Local scour downstream stilling basins is so complex that it makes it difficult to establish a general empirical model to provide accurate estimation for scour depth. Lack estimation of local scour can endanger to stability of hydraulic structure and can
Yasser Abdallah Mohamed Moussa
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Shui kexue jinzhan, 2022 In the context of wave-current, the characteristics of vortex structure and wave propagation around the upstream inclined pile differ significantly than around the vertical pile, which affects the local scour process of the pile foundation.
Yongzhou CHENG +4 more
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Geosciences, 2019 Local scour is a dynamic process evolving during the lifetime of bridges as a result of the changes in hydrologic and hydraulic conditions. Current approaches for scour risk assessment are generally based on the evaluation of the equilibrium scour depth ...
Alonso Pizarro, Enrico Tubaldi
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Preliminary comparison of scour depth estimation methods
, 2022 Bridge scour is a major cause of bridge collapse worldwide. Various approaches are available to estimate levels of scouring due to hydraulic loading. Such scour depth assessment methodologies typically employ a series of empirical and semi-empirical equations to estimate scour around a bridge element.
Gavriel, Gianna +2 more
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Scour depth downstream sharp-crested weir
Journal of Engineering and Applied Science, 2023 AbstractWeirs are hydraulic obstructions constructed across an open-channel flow causing a rise in water which is useful to convert water to the channels upstream as well as using these structures as a measuring device. There are different types, and a sharp-crested weir is one of them.
Arwa A. Mala Obaida +2 more
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Shock and Vibration, 2020 As a cross-sea or river deep-water foundation, it is clear that the caisson foundation will be subjected to significant lateral dynamic loads due to winds or waves and suffer from scouring under its long-term effect.
Wenbo Tu +3 more
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Maximum Abutment Scour Depth in Cohesive Soils [PDF]
Scour and Erosion, 2010 Most conventional methods to predict the depth of abutment scour were developed with flume test results using cohesionless soils, and those methods have been used to the abutment scour depth prediction in cohesive soils. Generally floodplains where most abutments are located are composed of less erodible soils such as cohesive soils.
Jae Oh, Seung +3 more
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