Results 1 to 10 of about 1,222 (261)

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
doaj   +2 more sources

Scour Evolution Downstream of Submerged Weirs in Clear Water Scour Conditions

Water (Switzerland), 2019
Although weirs or dikes in the riverine and coastal environments are frequently overtopped, few studies have hitherto examined the evolution of the scour process downstream of these structures under the submerged condition. This paper presents an experimental investigation on time evolution of the scour process downstream of submerged weirs with a ...
Yee Meng Chiew, Dawei Guan, Guan Dawei
exaly   +3 more sources

Potential of roughening geometric elements as bridge pier local scour countermeasures [PDF]

Scientific Reports
The safety of bridges can be endangered by sediment erosion occurring around bridge piers. To mitigate this issue, this study examined the use of different roughening geometric elements (RGEs) on the upstream surface of bridge piers.
Aziz Ahmad, Mujahid Khan, Muhammad Ajmal, Sadaf Sher, Muhammad Waseem, Faisal Baig   +5 more
doaj   +2 more sources

Clear water scour around a finite array of cylinders

Applied Ocean Research, 2017
Abstract This experimental study presents clear-water scour and deposition patterns around hexagonal arrays of circular cylinders in steady flow conditions. Understanding the scour processes around such configurations could facilitate the design of several hydraulic and marine engineering structures, such as bridge piers and piles.
Mehmet Furkan Çelik, Zaide Duran, Isilsu Yildirim   +2 more
exaly   +3 more sources

Experimental study of clear-water contraction scour

Water Science and Technology: Water Supply, 2020
AbstractIn this paper, experimental results of clear-water scour on a sand bed under short contractions were studied. Sequences of test runs were performed under clear-water conditions for three different contraction ratios. The outcomes of the experiments were employed to define the effects of various parameters on equilibrium scour depth under clear ...
Jaan H Pu, Srinivas Pasupuleti, Manish Pandey   +2 more
exaly   +2 more sources

Temporal variation of clear-water scour at compound Abutments

Ain Shams Engineering Journal, 2016
Most of actual abutments in rivers are built on foundation, while there is limited number of study available on the effects of the foundation on the local scour.
Aminuddin Ab. Ghani, Reza Mohammadpour
doaj   +2 more sources

Temporal clear-water scour evolution at rock weirs

Shui kexue jinzhan, 2022
Rock weirs are commonly used eco-friendly river training structures. However, water flow over rock weirs can cause local scour, resulting in structural failure.
Wen ZHANG, Lu WANG, Kejun YANG, Xingnian LIU, Ruihua NIE   +4 more
doaj   +1 more source

Experimental Study on Aspect Ratio and Velocity Intensity of Scour Around Submerged Pile Groups

Frontiers in Marine Science, 2022
Submerged pile groups are important components of complex piers in hydraulic engineering and are analogs for a range of subsea structures. These may sustain severe damages from local scour.
Youxiang Lu, Zhenlu Wang, Zhenlu Wang, Zegao Yin, Zegao Yin, Shengtao Du, Xinying Pan, Xinying Pan, Bingchen Liang, Bingchen Liang   +9 more
doaj   +1 more source

Log-Vane Scour in Clear Water Condition [PDF]

River Research and Applications, 2014
Log-Vane is a grade-control structure of common use to stabilize river bed and river banks. The purpose of this paper is to study the scour phenomena downstream of Log-Vanes in straight rivers. The main goal is to obtain design equations to determine the main scour parameters and the scour morphology.
S. Pagliara, L. Sagvand Hassanabadi, S. Mahmoudi Kurdistani   +2 more
openaire   +1 more source

Clear-Water Scour at Pile Groups [PDF]

Journal of Hydraulic Engineering, 2013
AbstractGroups of piles are frequently used as bridge foundations. Different group configurations, characterized by different pile spacing, skew-angle, number, and arrangement of pile group columns interact differently with the flow field and lead to different scour patterns and equilibrium scour depth.
Lança, Rui, Fael, Cristina, Maia, Rodrigo, Pêgo, João, Cardoso, António   +4 more
openaire   +2 more sources