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Title

Clear-water scour at submerged pile groups

AuthorsGalán, Álvaro ; Simarro, Gonzalo ; Fael, Cristina; Cardoso, Antonio H.
KeywordsBridges
Habitat hydraulics
Laboratory studies
River training structures
Erosion processes
Issue Date2019
PublisherTaylor & Francis
CitationInternational Journal of River Basin Management 17(1): 101-108 (2019)
AbstractAccurate estimates of the scour depth around submerged pile groups are important in river engineering for a number of reasons, however, the literature on this issue is scarce. This study introduced an experimental campaign of 48 long-duration clear water experiments at submerged and skewed pile groups composed of cylindrical elements under steady flow. The effects of the skew angle, submergence ratio and pile group configuration on the equilibrium scour depth were investigated. The experimental scour depths were compared with the results from the HEC-18 empirical method and a modification of it to take into account a wide range of submergence ratios was proposed. Further, a new formulation to estimate the equilibrium scour depth at submerged pile groups was introduced with good agreement for the tests under consideration. Some considerations about the most employed characteristic lengths used to normalize the equilibrium scour depth were made
Description8 pages, 8 figures, 2 tables
Publisher version (URL)https://doi.org/10.1080/15715124.2018.1446964
URIhttp://hdl.handle.net/10261/181758
Identifiersdoi: 10.1080/15715124.2018.1446964
issn: 1571-5124
e-issn: 1814-2060
Appears in Collections:(ICM) Artículos
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