Results 221 to 230 of about 74,649 (269)
Exploring Proper Spacing Threshold of Non-Submerged Spur Dikes with Ipsilateral Layout
Water (Switzerland), 2020 Concerning the clustering of spur dikes on river systems, the spacing thresholds of twin spur dikes are important parameters to influence the estimations on the impact scales of spur dike groups and the overall responses of river systems.
Zhenghua Gu, Wei-Zhen Lu, Xiaomeng Cao
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Protective spur dike for scour mitigation of existing spur dikes
Journal of Hydraulic Research, 2011To alleviate the scour depth around a series of existing spur dikes (SDs), a protective SD located upstream of the first was experimentally investigated. To determine the optimal design parameters, various values, lengths, angles and the spacing of a protective SDs were experimentally tested under different clear-water conditions in a straight river ...
Hojat Karami +3 more
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Effects of Spur Dikes on Water Flow Diversity and Fish Aggregation
Water (Switzerland), 2019 As a typical waterway modification, the spur dike narrows the water cross section, which increases the flow velocity and flushes the riverbed. Meanwhile, it also protects ecological diversity and improves river habitat.
Huaixiang Liu, Tingjie Huang
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Turbulent Burst around Experimental Spur Dike
World Environmental and Water Resources Congress 2010, 2010Abstract Three-dimensional turbulent flow field was measured around an experimental spur dike by using a micro-acoustic Doppler velocimeter. Time fractions of turbulent burst events including outward interaction, ejection, inward interaction, and sweep were analyzed in each quadrant at the neighbor of the dike before and after the formation of scour ...
Jennifer DUAN +3 more
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Temporal Scour Variations at Permeable and Angled Spur Dikes under Steady and Unsteady Flows
Water (Switzerland), 2022 Spur dikes are river protection structures typically used for flow diversion from erodible banks. However, scouring might be a severe problem that compromises their stability and, consequently, their hydraulic function.
Seyed Mahmood Kashefipour +1 more
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Assessment of the Technical Condition of Spur Dikes
World of Transport and Transportation, 2023Spur dikes are one of the types of structures for engineering protection of the roadbed, which, in combination with a wavedamping beach, are used to protect the railway track from wave action.The objective of this work is to improve safety of coast railway track operation in areas subject to wave action.
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New Type of Spur Dike at the Exit of Diversion Channel: Courter-Arc Vertical Ladder Spur Dike
Advanced Materials Research, 2012Arranging spur dike at the exit of diversion channel significantly influences the safety of the downstream cofferdam and the scour of the downstream bed by changing the water velocity and turbulence. In order to compare the advantages of different arrangement of spur dike, detailed profiles of velocity and scouring are measured in laboratory flume. And
Shu Bo Yue, Ming Jun Diao
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Study of Scour Around Spur-Dikes
Journal of the Hydraulics Division, 1961Investigation was conducted in 2 ft wide by 25 ft long nonrecirculating flume; effect of flow, spur-dike, and sediment characteristics on maximum scour depth; it was found that Froude number of normal channel, opening ratio, angle of inclination of spur-dike, and average drag coefficient of sediment particle adequately represent influence on maximum ...
R. J. Garde +2 more
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Reduction of Local Scouring with Protective Spur Dike
World Environmental and Water Resources Congress 2008, 2008One of the main parameters in design of spur dikes is the estimation of local scour depth around their tail. Spur dikes are usually built in series and their stability depends on the stability of the first spur dike. In this research, an experimental investigation is carried out in order to reduce local scouring around the first spur dike in a series ...
H. Karami +4 more
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Backwater effect due to a single spur dike
Canadian Journal of Civil Engineering, 2007Spur dikes are river engineering structures that project from the bank of a stream at some angle to the main flow direction. They are principally used for river training and protection of the riverbank from erosion. A spur dike might be considered a form of macroscale boundary roughness, which produces a backwater effect upstream from the spur dike ...
H Azinfar, J A Kells
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