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Estimation of maximum scour depth near a spur dike [PDF]
Canadian Journal of Civil Engineering, 2016 Scour is a natural phenomenon in rivers caused by the erosive action of the flowing water on the bed and banks. Spur dikes are constructed across the flow to protect the bank from erosion by shifting of the river away from the bank. The spur dike undermines due to river-bed erosion and scouring, which is generally recognized as the main cause of spur ...
Manish Pandey, P K Sharma
exaly +2 more sources
Effect of ice cover roughness on local scour around bridge piers [PDF]
Scientific ReportsIn cold-region rivers, the formation of ice cover during winter markedly modifies the hydraulic conditions, leading to enhanced local scour around in-stream infrastructures such as bridge piers. To analyze the flow characteristics and maximum local scour
Shihao Dong +3 more
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Riprap mitigation of downstream scour at grade-control structures considering tailwater depth and layer thickness [PDF]
Scientific ReportsDownstream scour at grade-control structures (GCSs) poses a serious threat to structural stability and riverbed integrity. Among various countermeasures, riprap has long been recognized as a cost-effective and readily available solution for scour ...
Hossein Mohammadnezhad +2 more
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A Study on the Maximum Scour Depth of River-Crossing Tunnels
Water (Switzerland)As urbanization progresses and city populations grow, river-crossing tunnels assume a crucial role in transportation networks, with the maximum scour depth constituting a critical parameter influencing tunnel safety. Using Line 6 of the Nanning Metro in Guangxi, China as a case study, a two-dimensional hydrosediment mathematical model was employed to ...
Junhong Zhang, Zhang Junhong
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Multi-approach analysis of maximum riverbed scour depth above subway tunnel
Water Science and Engineering, 2010 When subway tunnels are routed underneath rivers, riverbed scour may expose the structure, with potentially severe consequences. Thus, it is important to identify the maximum scour depth to ensure that the designed buried depth is adequate.
Jun Chen +3 more
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Engineering Science and Technology, an International Journal, 2015 In the present study, neuro-fuzzy based-group method of data handling (NF-GMDH) as an adaptive learning network was utilized to predict the maximum scour depth at the downstream of grade-control structures.
Mohammad Najafzadeh
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Clear Water Scour at Rectangular Bridge Pier with Collar [PDF]
Port Said Engineering Research Journal, 2023 Scour is the most significant threat to waterways because it leads to the failure of bridge piers and other structural components. When a collar is put in place around the pier to lessen the direct effect of the downflow on the streambed, the maximum ...
Amir Ibrahim
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Investigation of using sill under gate as a scour countermeasure downstream of a sluice gate [PDF]
The Egyptian International Journal of Engineering Sciences and Technology, 2023 Scour is a natural phenomenon caused by the removal of silt from alluvial beds caused by a stream's erosion, which happens around or next to moving water structures.
Ahmed Awaad, Elsayed Elshahat
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Local scour around a bridge pier under ice-jammed flow condition – an experimental study
Journal of Hydrology and Hydromechanics, 2021 The appearance of an ice jam in a river crucially distorts local hydrodynamic conditions including water level, flow velocity, riverbed form and local scour processes.
Wang Jun +5 more
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Empirical Formulas to Predict the Maximum Scour Depth With Debris Accumulation Around A Single Cylindrical Bridge Pier: An Experimental Study [PDF]
Engineering and Technology Journal, 2020 The probability of debris accumulation near bridge piers during the heavy storm and river flood convert the hydraulic action of flow and increase the scour depth due to the reduction of flow area and the increase in velocity of flow.
Mahmoud Saleh Al-Khafaji, Aysar Al-Awadi
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