Results 31 to 40 of about 145,008 (321)

Combination of Riprap and Submerged Vane as an Abutment Scour Countermeasure

open access: yesFluids, 2023
Scour is one of the main causes of hydraulic structural failures. The present experimental study examines the use of riprap, submerged vanes, and a combination of these for scour reduction around vertical walls and spill-through abutments under clear ...
Abazar Fathi   +6 more
doaj   +1 more source

Physical model study for mitigating local scour downstream of clear over-fall

open access: yesAin Shams Engineering Journal, 2015
Local scouring action downstream of clear over-fall weirs associated with three-dimensional turbulent flow field is a common morphological problem in mobile channel bed.
Ahmed Mostafa Ahmed Amin
doaj   +1 more source

Unified Criterion for Clear‐Water Local Scour Induced by Junction Flows and Wall Jets

open access: yes, 2021
Local scour in a sediment bed varies depending on the type, size and shape of hydraulic structures, and the properties of approach flow and sediment particles. Published studies are hitherto confined primarily to empirical experiments based on particular
Yesheng Lu   +7 more
core   +1 more source

Effect of trapezoidal collars as a scour countermeasure around wing-wall abutments

open access: yesWater Science and Engineering, 2018
Local scour around bridge abutments is a widespread problem that can result in structural failure. Collars can be used as a countermeasure to reduce the scour depth.
Payam Khosravinia   +3 more
doaj   +1 more source

Simulation of Scour at Bridge Supports

open access: yesGrađevinar, 2020
Groups of piers are used on bridges to minimise scour around bridge supports. The prediction of scour around piers due to interaction of vortices around bridge piers is more complex compared to scour prediction around a single pier.
Yasser Moussa, Mahoud Atta
doaj   +1 more source

Application of gradient tree boosting regressor for the prediction of scour depth around bridge piers

open access: yesJournal of Hydroinformatics, 2021
Scour around bridge piers is a complex phenomenon and it is essential to assess or predict the scour hazard around bridge piers in tandem with completely understanding its mechanism.
B. M. Sreedhara   +4 more
doaj   +1 more source

Experimental Investigation of Scour Prediction Methods for Offshore Tripod and Hexapod Foundations

open access: yesJournal of Marine Science and Engineering, 2020
Scour prediction is essential for the design of offshore foundations. Several methods have been proposed to predict the equilibrium scour depth for monopiles.
Xuan Ni, Leiping Xue
doaj   +1 more source

Bridge Foundation River Scour and Infill Characterisation Using Water-Penetrating Radar

open access: yesRemote Sensing, 2021
Inspections of engineered structures below water level are essential to ensure the long-term serviceability of bridge infrastructure and to avoid major damage or failure.
Kris E. J. Campbell   +5 more
doaj   +1 more source

Experimental study on local scour around the pile on the sandy seabed under wave action

open access: yesShui kexue jinzhan, 2018
The local scour caused by a pile on a slope differs to that at the flat sand bed. A 1:16 slope with sediment median size of 0.32 mm was set up, and an experimental study of local scour around the pile under the action of regular wave was conducted. Under
CHENG Yongzhou   +4 more
doaj   +1 more source

The Effect of Submergence Percentage of the Submerged Piles on the Reduction of Scour in Bridge Abutments [PDF]

open access: yesJournal of Rehabilitation in Civil Engineering, 2014
Scour around hydraulic structures is an inevitable phenomenon . Recognition of this phenomenon and dealing with it is an issue considering which will ensure the project success .
Mohammad Mehdi Razmi   +2 more
doaj   +1 more source

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