Beach Nourishment in Presence of Seawall
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VIEW THE REPLYPublication: Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 120, Issue 3
Abstract
Beach nourishment, placed along a seawalled shoreline, can exhibit a markedly different behavior than projects on shorelines with adequate compatible sands to transport. The most striking effects of engineering significance are: (1) The migration of the centroid of the nourishment planform anomaly when acted on by oblique waves; and (2) a potentially different (currently unknown) rate of spreading of the planform anomaly. Under the most idealized considerations of uniform transport along the nourished shoreline, the speed of centroid migration is shown to increase as the planform anomaly spreads out under the mobilizing action of the waves, and the rate at which the planform spreading (dispersion) occurs is not affected by the seawall. Also, for normally incident waves, the seawall does not affect the planform evolution. Analytical, numerical, and experimental approaches are employed to demonstrate the aforementioned effects. It is shown that the transport at the ends of the project, where all the nourishment sand is submerged, can affect results substantially. These effects of the presence of a seawall on beach‐nourishment project performance appear to have not been reported previously.
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References
1.
Bruun, P. (1954). “Coast erosion and the development of beach profiles.” Technical Memorandom No. 44, Beach Erosion Board, U.S. Army Corps of Engrs., Washington, D.C.
2.
Dean, R. G. (1977). “Equilibrium beach profiles: U.S. Atlantic and Gulf coasts.” Ocean Engineering Report No. 12, Dept. of Civ. Engrg., Univ. of Delaware, Newark, Del.
3.
Dean, R. G. (1983). “Principles of beach nourishment.” CRC handbook of coastal processes and erosion, P. D. Komar, ed., CRC Press, Boca Raton, Fla., 217–232.
4.
Dean, R. G. (1991). “Equilibrium beach profiles: Characteristics and applications.” J. Coast. Res., 7(1), 53–84.
5.
Dean, R. G., and Grant, J. (1989). “Development of methodology for thirty‐year shoreline projections in the vicinity of beach nourishment projects.” Report No. UFL/COEL‐89/026, Dept. of Coast. and Oceanographic Engrg., Univ. of Florida, Gainesville, Fla.
6.
Dean, R. G., and Yoo, C. H. (1992). “Beach nourishment performance predictions.” J. Wtrwy., Port, Coast. and Oc. Engrg., ASCE, 118(6), 567–586.
7.
Komar, P. D., and Inman, D. L. (1970). “Longshore sand transport on beaches.” J. Geophys. Res., 75(30), 5914–5927.
8.
Larson, M., Hanson, H., and Kraus, N. C. (1987). “Analytical solutions of the one‐line model of shoreline change.” Tech. Report CERC‐87‐15, U.S. Army Corps of Engrs., Coast. Engrg. Res. Ctr., Vicksburg, Miss.
9.
Pelnard‐Considere, R. (1956). “Essai de Theorie de l'Evolution des Formes de Rivate en Plages de Sable et de Galets.” 4th Journees de l'Hydraulique, Les Energies de la Mar, Question III, Rapport No. 1 (in French).
10.
Walton, T. L., and Chiu, T. Y. (1979). “A review of analytical techniques to solve the sand transport equation and some simplified solutions.” Proc. ASCE Speciality Conf. on Coast. Sediments '77, ASCE, New York, N.Y., 809–837.
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Published In
Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 120 • Issue 3 • May 1994
Pages: 302 - 316
Copyright
Copyright © 1994 American Society of Civil Engineers.
History
Received: Mar 18, 1993
Published online: May 1, 1994
Published in print: May 1994
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