Results 11 to 20 of about 2,213,482 (351)
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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Modelling of clear water scour depth around bridge piers using M5 tree and ANN-PSO
AQUA — Water Infrastructure, Ecosystems and Society, 2023 Scouring refers to the process by which bed sediment in a river is eroded around the periphery of a bridge abutment or pier. Many empirical models are available to estimate the scour depth for different flow, geometry, and bed roughness condition ...
Amarjeet Kumar +2 more
semanticscholar +1 more source
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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Prediction of local scour depth around bridge piers: modelling based on machine learning approaches
Engineering Research Express, 2023 Scouring is a threat to the foundations of bridges, and it frequently results in bridge collapse. Recently, machine-learning approaches have become quite popular in solving hydraulic and hydrologic problems. The present study adopted adaptive neuro-fuzzy
Virendra Kumar +2 more
semanticscholar +1 more source
Accuracy evaluation of scour depth equations under the submerged vertical jet
Aqua, 2023 Scouring of sediment materials under submerged vertical jets is shown at grade-control structures, downstream of weirs, and submerged vertical water jets have several uses, including seabed sediment removal and dredging in ocean engineering.
Sai Guguloth, M. Pandey
semanticscholar +1 more source
Experimental study on local scour depth around pile groups
Energy Reports, 2022 An accurate prediction of local scour depth at piles is essential for bridge safety. In order to obtain the prediction formula of local scour around pile groups, a series of local scour experiments of pile groups were carried out.
Haiyang Dong +4 more
doaj +1 more source
Interaction of Bridge Pier and Abutment on Local Scour Around Them [PDF]
علوم و مهندسی آبیاری, 2016 The local scour around bridge pier and abutment in recent years has been widely studied by different authors. Scant information exists as to how bridge pier proximity to abutment affects scour depth at an abutment and at a pier. Due to the fact that many
Morteza Arab, Mohammad Ali Zomorodian
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Experimental assessment and prediction of temporal scour depth around a spur dike
International Journal of Sediment Research, 2021 Spur dikes are river training structures that have been extensively used worldwide for towards enhancing flood control and the stability of embankments and riverbanks.
M. Pandey +4 more
semanticscholar +1 more source
Mean Flow Structure and Local Scour around Single and Two-Column Bridge Piers [PDF]
علوم و مهندسی آبیاری, 2019 Bridges constructed across rivers are among the most important structures, especially during and after flood events. Bridge piers are exposed to some hazardous factors such as local and contraction scour hydrodynamics.
Alireza Keshavarzi +2 more
doaj +1 more source
Scour depth model for grade-control structures [PDF]
Journal of Hydroinformatics, 2017 Abstract Grade-control structures (GCS) are commonly used to protect fish habitat by preventing excessive river-bed degradation in mountain streams. However, flow over the GCS can cause localized scour immediately downstream of the weir. This paper aims to develop more accurate models for prediction of the maximum scour depth downstream ...
Bahram Gharabaghi +3 more
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