Results 191 to 200 of about 1,276 (229)
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Prediction of Maximum Scour Depth at Submarine Pipelines
Journal of Hydraulic Engineering, 1991This paper examines and reviews published results relating to local scour around submarine pipelines. It highlights the limitations of existing methods for estimating scour depth at the pipeline. Based on experimental results, the study proposes an empirical function relating the amount of gap flow through the scour hole for given flow conditions. With
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Bar height formulas to predict the maximum scour depth at riverbanks
2004FIoods in alluvial rivers are characterized by channels incision in the alluvial bed during the rising stage and their fìlling up in the falling stage; this phenomenon is well known and called scour and fill. In this work scour and fill during floods will be described as bar migration in the alluvial bed: when bar trough reaches the riverbank ...
DEL GIUDICE, GIUSEPPE +2 more
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Efficacy of Marine Electrical Resistivity Surveys to Determine Maximum Scour Depth and Scour Infill
Transportation Research Record: Journal of the Transportation Research BoardThe maximum depth of bridge scour typically occurs during peak flood conditions when it is too dangerous to collect measurements. Often, the maximum depth is obscured by additional redeposited sediment. Applied geophysical methods are commonly used to detect the depth of scour infill and estimate maximum scour depth.
Andrew Gombac +2 more
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Maximum Local Scour Depth at Bridge Piers under Unsteady Flow
Journal of Hydraulic Engineering, 2009The temporal effect of hydrograph on local scour depth is investigated under clear-water scour condition. By analyzing the characteristics of scour-depth evolutions at bridge piers for different rising hydrographs, a relation for estimating the maximum scour depth in uniform sediment is proposed.
Jihn-Sung Lai +2 more
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Application of Particle Densimetric Froude Number for Evaluating the Maximum Culvert Scour Depth
Journal of Irrigation and Drainage Engineering, 2020AbstractThis paper presents a compilation of a large database consisting of 588 culvert scour experiments covering a wide combination of different culvert shapes, culvert outlet conditions, and sed...
Sheau Maan Tan +3 more
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Effects of Pile Cap Thickness on the Maximum Scour Depth at a Complex Pier
Journal of Hydraulic Engineering, 2013An experimental campaign of 21 long-duration tests on scouring at complex piers of different configurations was performed to investigate the effect of pile cap thickness on the temporal evolution of the maximum scour depth and the development of equilibrium conditions. Two test series were performed with two significantly different pile cap thicknesses
FERRARO R +3 more
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Prediction of Maximum Scour Depth at Bed Sills
1999Bed sills are sometimes built to limit the amount of material eroded from degrading streams. The construction of these structures leads to the development of local scour downstream of them. The maximum scour depth was evaluated in the past by the authors under the conditions of no sediment feed and uniform bed material.
GAUDIO, Roberto, MARION A.
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On the effect of dunes migration on maximum scour depth at Bridge Pier
Proceedings of the 39th IAHR World Congress, 2022Shaolin Yue, Huan Zhou, Rui Wang
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Design relationships for maximum local scour depth for bridge pier groups.
2009An investigation of local scour at pier groups has been conducted with the aim of developing design recommendations and scour depth prediction equations for the bridge pier groups. A comprehensive series of steady uniform flow experiments was performed on groups of 2, 3, 4, and 6 model piers. All tests were conducted under clear-water scour conditions.
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