Further Results to Time-Dependent Local Scour at Bridge Elements
This article has a reply.
VIEW THE REPLYThis article has a reply.
VIEW THE REPLYPublication: Journal of Hydraulic Engineering
Volume 131, Issue 2
Abstract
This research intends to clarify the limitations of a local scour equation recently proposed, based on extended laboratory data collected at VAW, Zurich, Switzerland. The present project is concerned with four items: (1) clarification of the minimum laboratory dimensions required to apply Froude similitude; (2) effect of sloping abutments on scour advance; (3) extension of scour formula to spur dikes; and (4) effect of unsteady flow on scour development. These items were investigated mainly from an experimental point of view based on some 150 laboratory experiments and accounted for by a hydraulic approach. It was found that the basic scour equation mentioned may be applied provided additional limitations are specified. These are discussed in the light of the densimetric particle Froude number, the threshold Froude number, and other important parameters that influence the progress of local scour. The results of this study may be applied to practice, provided the limitations of the computational approach are respected.
Get full access to this article
View all available purchase options and get full access to this article.
References
Ahmad, M. (1953). “Experiments on design and behaviour of spur dikes.” Proc., IAHR Conf., Minn., 145–159.
Cunha, L. V. (1975). “Time evolution of local scour.” Proc., 14th IAHR Congress, Part B, 36, 285–299.
Garde, R. J., Subramanya, K., and Nambudripad, K. D. (1961). “Study of scour around spur-dikes.” J. Hydraul. Div., Am. Soc. Civ. Eng., 87(6), 23–37.
Gill, M. A. (1972). “Erosion of sand beds around spur dikes.” J. Hydraul. Div., Am. Soc. Civ. Eng., 98(9), 1587–1602.
Hager, W. H., and Oliveto, G. (2002). “Shields’ entrainment criterion in bridge hydraulics.” J. Hydraul. Eng., 128(5), 538–542.
Hager, W. H., Unger, J., and Oliveto, G. (2002). “Entrainment criterion for bridge piers and abutments.” River flow 2002, D. Bousmar and Y. Zech, eds., Swets and Zeitlinger, Lisse, The Netherlands, 2, 1053–1058.
Kohli, A., and Hager, W. H. (2001). “Building scour in floodplains.” Water and maritime engineering, Institution of Civil Engineers, London, 148, 61–80.
Kothyari, U. C., and Ranga Raju, K. G. (2001). “Scour around spur dikes and bridge abutments.” J. Hydraul. Res., 39(4), 367–374.
Kuhnle, R. A., Alonso, C. V., and Douglas Shields, F., Jr. (2002). “Local scour associated with angled spur dikes.” J. Hydraul. Eng., 128(12), 1087–1093.
Melville, B. W., and Coleman, S. E. (2000). Bridge scour, Water Resources Publications, Highlands Ranch, Colo.
Oliveto, G., and Hager, W. H. (2002). “Temporal evolution of clear-water pier and abutment scour.” J. Hydraul. Eng., 128(9), 811–820.
Rajaratnam, N., and Nwachukwu, B. A. (1983). “Erosion near groyne-like structures.” J. Hydraul. Res., 21(4), 277–287.
Information & Authors
Information
Published In
Journal of Hydraulic Engineering
Volume 131 • Issue 2 • February 2005
Pages: 97 - 105
Copyright
© 2005 ASCE.
History
Received: Jul 14, 2003
Accepted: Sep 9, 2004
Published online: Feb 1, 2005
Published in print: Feb 2005
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.