Results 31 to 40 of about 552 (119)
Localized Turbulent Flows on Scouring Granular Beds [PDF]
Physical Review Letters, 2005 In many applications a sustained, localized turbulent flow scours a cohesionless granular bed to form a pothole. Here we use similarity methods to derive a theoretical formula for the equilibrium depth of the pothole. Whereas the empirical formulas customarily used in applications contain numerous free exponents, the theoretical formula contains a ...
Gioia, Gustavo, Bombardelli, Fabian A.
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Ain Shams Engineering Journal, 2018 Bridges are one of the important structures across the Nile River; these bridges may be subjected to collapse if there is no monitoring or safety precaution for local scour during high floods.
Ahmed Moustafa Ahmed Moussa
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Experimental investigation of local scour around multi-vents bridge piers
Alexandria Engineering Journal, 2015 The harmful effect of local scour around bridge piers and abutments can induce high maintenance costs or even bridge collapse resulting in the disturbance of traffic and possibly human losses.
Yasser A. Mohammed +2 more
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Local scour at abutments: A review
Sadhana, 2004 Failure of bridges due to local scour has motivated many investigators to explore the causes of scouring and to predict the maximum scour depth at abutments. In this paper, a detailed review of the up-to-date work on scour at abutments is presented including all possible aspects, such as flow field, scouring process, parameters affecting scour depth ...
Abdul Karim Barbhuiya, Subhasish Dey
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Advances in Bridge EngineeringCofferdam is widely employed in the construction of underwater bridge foundations. Its crucial attribute lies in providing a dedicated platform for construction activities and enhancing the water resistance dimensions in structural design, consequently ...
Pengxin Ran +5 more
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Laboratory Study of Local Scour Around an Array of Pile Groups in Clear-Water Scour Conditions
Journal of Marine Science and EngineeringCurrent-induced local scour around pile groups weakens the capacity of structures. In this paper, experimental tests of local scour around an array of 5 × 5 pile groups were conducted in a steady current in a hydraulic flume.
Ming Gong +7 more
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On local scouring downstream small water structures
PeerJ, 2020 Background In order to regulate water flow, hydraulic structures such as weirs or checks, frequently equipped with gates, are used. Water can flow below or over the gate or, simultaneously, over and below the gate.
Kiraga, Marta, Popek, Zbigniew
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Evolution features of riverbeds near underwater crossing line pipes: An experimental study
Natural Gas Industry B, 2020 It is of important significance to study the evolution law of the riverbed near underwater crossing line pipes for ensuring the safe operation of oil and gas pipelines and reducing the risk of damage by water flood disasters.
Qian Yang +3 more
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Local Scour at Bridge Abutments
Journal of King Abdulaziz University-Engineering Sciences, 1998 This paper presents the results of an experilnental investigation of local scour at bridge abutment models of three common shapes placed in laboratory flume with uniform sand with d)l) =0.775 mm. The 1l1uximum scour depths and extent of scour were determined corresponding to clear water conditions.
D. HUSAIN, A. QURAISHI, A. ALIBRAHIM
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Energy InformaticsThe composite cylindrical wind turbine foundation is characterized by its large-diameter cylindrical base, which offers superior anti-overturning capability, and it is widely used in the soft soil seabed of Jiangsu, China.
Can Tang +3 more
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