THE MORPHOLOGICAL RESPONSE OF BEACHES PROTECTED BY DIFFERENT BREAKWATER CONFIGURATIONS

Carlo Lorenzoni, Matteo Postacchini, Alessandro Mancinelli, Maurizio Brocchini

Abstract


A series of experimental tests on a 2D movable-bed physical model of the protected sandy beach of Gabicce Mare, on the central Adriatic Sea in Italy, is described. Three emerged and three submerged configurations of rubble-mound detached breakwaters, for beach protection, placed at different positions, were tested in the Ancona (Italy) wave flume and the obtained results were compared with those found for a structure-free configuration. Both wave dissipation and reduction of beach erosion efficiency under various wave conditions were obtained and, in particular, the short-term hydro-morphodynamic response of the different tested breakwater configurations.

Keywords


coastal defence; rubble-mound breakwaters; maritime physical models

References


Autorità di bacino della Regione Marche. 2005. Piano di gestione integrata delle aree costiere. http://dx.doi.org/10.1061/(ASCE)0733-950X(2007)133:3(213)

Burcharth, H.F., S.J.Hawkins, B. Zanuttigh, and A. Lamberti. 2007. Environmental Design Guidelines for Low Crested Coastal Structures, Elsevier, pp. 400.

Calabrese, M., D. Vicinanza, and M. Buccino. 2005. Verification and recalibration of an engineering method for predicting 2D wave setup behind submerged breakwater, Proceedings of International Coastal Symposium '05, www.itv.is/ics2005.

Gonzales, M., R. Medina and M. A. Losada. 1999. Equilibrium beach profile model for perched beaches, Coastal Engineering, 36, 342-357.

ISPRA. 2012. Historical archive - marigraphic and wavemetre data, www.idromare.it.

Istituto di idraulica dell"Università degli studi di Ancona. 2001. Studi, indagini e modelli matematici finalizzati alla redazione del Piano di difesa della costa, www.autoritabacino.marche.it/costa.htm.

Kraus, N.C. 1992. Engineering approaches to cross-shore sediment transport processes, Proceedings of the Short Course of the 23rd International Conference on Coastal Engineering, ASCE, 175-209.

Kriebel, D.L., and R. G. Dean. 1993. Convolution method for time-dependent beach-profile response, Journal of waterway, port, coastal and ocean engineering, 119 (2), 204-227.http://dx.doi.org/10.1061/(ASCE)0733-950X(1993)119:2(204)

Larson, H., and N. C. Kraus. 1989. Sbeach: numerical model for simulating storm induced beach change, CERC Report 89-9, US Corps of Engineers.

Larson, H., H. Hanson, and N.C. Kraus. 1997. Analytical solutions of the one-line model of shoreline change near coastal structures, J. of waterway, port, coastal and ocean eng., 123 (4), 180-191.

Lorenzoni, C., P. Perucci, and M. Riccioni. 1987. Ripascimento artificiale dei litorali marchigiani: criteri di progetto, modalità di esecuzione e conseguente evoluzione delle spiagge, Atti del IV° Colloquio Nazionale A.I.O.M., Ancona, parte I, 196-221.

Lorenzoni, C., and A. Mancinelli. 2002. Erosione e opere di difesa per il litorale: la costa delle Marche, Orli d'acqua: il disegno della costa e della città porto, Ist. disegno, architett. e urbanistica, 73-96.

Lorenzoni, C., A. Piattella, L. Soldini, A. Mancinelli, and M. Brocchini. 2005. An experimental investigation of the hydrodynamic circulation in the presence of submerged breakwaters, Proceed. of the 5th International Symposium on Ocean Measurements and Analysis, Paper 125.

Lorenzoni, C., A. Mancinelli, M. Postacchini, M. Mattioli, L. Soldini, and S. Corvaro. 2009. Experimental tests on sandy beach model protected by low-crested structures, Proceedings of the 4th International Short Conference on Applied Coastal Research, Barcelona, Spain, 310-322.

Lorenzoni, C., L. Soldini, M. Brocchini, A. Mancinelli, M. Postacchini, E. Seta, and S. Corvaro. 2010. Working of defence coastal structures dissipating by macroroughness, Journal of Waterway, Port, Coastal, and Ocean Engineering, 136 (2), 79-90.http://dx.doi.org/10.1061/(ASCE)WW.1943-5460.0000028

Mancinelli, A., C. Lorenzoni, and L. Soldini. 2000. Evoluzione dei profili di spiaggia in presenza di barre o barriere artificiali sommerse, Atti del XXVII° Convegno di idraulica e costruzioni idrauliche, Genova, IV, 277-285.

Pilarczyk, K.W. 2003.Design of low-crested (submerged) structures – an overview, Proceedings of the 6th International Conference on Coastal and Port Engineering in Developing Countries, 1-16.

Postacchini, M., C. Lorenzoni, A. Mancinelli, and M. Brocchini. 2010. Some Experimental Results on the Efficiency of Different Breakwater Configurations, Atti del XXXII° Convegno Nazionale di Idraulica e Costruzioni idrauliche, CD-ROM, B0150.pdf.

Postacchini, M., M. Brocchini, S. Corvaro, C. Lorenzoni, and A. Mancinelli. 2011. Comparative analysis of sea wave dissipation induced by three flow mechanisms, Journal of Hydraulic Research, 49 (4), 554-561.http://dx.doi.org/10.1080/00221686.2010.544143

Ruol, P., A. Faedo, and A. Paris. 2003. Prove sperimentali sul comportamento di una scogliera a cresta bassa e sul fenomeno del piling-up a tergo di essa, Studi Costieri, 7, 41-59.

Soldini, L., C. Lorenzoni, M. Brocchini, A. Mancinelli, and L. Cappietti. 2009. Modeling of the wave setup inshore of an array of submerged breakwaters, Journal of waterway, port, coastal and ocean engineering, 135 (2), 38-51.http://dx.doi.org/10.1061/(ASCE)0733-950X(2009)135:2(38)

Van der Meer, J.W. 1990. Data on wave transmission due to overtopping, Delft Hydraulics Rep. H986.

Van der Meer, J.W., R. Briganti, B. Zanuttigh, and B. Wang. 2005. Wave transmission and reflection at low-crested structures: design formulae, oblique wave attack and spectral change, Coastal Engineering, 52, 915-929.http://dx.doi.org/10.1016/j.coastaleng.2005.09.005


Full Text: PDF

Creative Commons License
This work is licensed under a Creative Commons Attribution 3.0 License.