Groins and submerged breakwaters – new modeling and empirical experience

Ostrowski, Rafał; Pruszak, Zbigniew; Schönhofer, Jan; Szmytkiewicz, Marek

doi:10.1515/ohs-2016-0003

Abstract

The relationship between the effectiveness of groins and their technical condition was studied. The supporting role of groins in artificial shore nourishment was tested using the theoretical modeling of hydrodynamic and morphodynamic processes in the nearshore zone. This modeling scheme was developed as to represent the actual coastal situation occurring on the shores of the Hel Peninsula (the Gulf of Gdańsk, the southern Baltic Sea). Based on the results of computations and the results of field observations, recommendations were prepared on the design and maintenance of groins. The second part of the paper is devoted to submerged breakwaters. The theoretical modeling of wave-current fields near the segmented submerged breakwaters led to the determination of coefficients of wave transmission and rip current velocities, which finally yielded a piece of design advice. In all numerical simulations, the Delft3D software was used.

References

Aminti, P., Cammelli, C., Cappietti, L., Jackson, N.L., Nordstrom, K.F., Pranzini, E. (2004). Evaluation of beach response to submerged groin construction at Marina di Ronchi, Italy, using field data and a numerical simulation model. Journal of Coastal Research, Special Issue no. 33. Functioning and Design of Coastal Groins: The Interaction of Groins and the Beach-Process and Planning (WINTER 2004), pp. 99-120.
Search in Google Scholar Back to article
Bacamazo, L. & Grosskopf W. (1999). Beach response to groins. In proceedings of Coastal Sediments, June 21-23 (pp. 2073-2089). New York, USA: ASCE.
Search in Google Scholar Back to article
Badiei, P., Kamphuis W. & Hamilton D. (1994). Physical experiments on the effect of groins on shore morphology. In proceedings of the 24th International Conference on Coastal Engineering, October 23-28 (pp. 1782-1796). Kobe, Japan: ASCE.
Search in Google Scholar Back to article
Cappietti, L. (2011). Converting Emergent Breakwaters into Submerged Breakwaters. E Journal of Coastal Research, SI 64 (Proceedings of the 11th International Coastal Symposium), 479-483. Szczecin, Poland, ISSN 0749-0208.
Search in Google Scholar Back to article
Dabees, M., Moor B. & Humiston K. (2004). Enhancement of T-groins designed to improve downdrift shoreline response. In proceedings of 29th International Conference on Coastal Engineering, September 19-24 (pp. 2423-2435). Lisbon, Portugal: ASCE.
Search in Google Scholar Back to article
De Groot, M. B., Breteler M.K. & Berendsen E. (2004). Feasibility of geocontainers at the sea shore. In proceedings of 29th International Conference on Coastal Engineering, September 19-24 (pp. 3904-3913). Lisbon, Portugal: ASCE.
Search in Google Scholar Back to article
Deltares 2010a. Delft3D-WAVE. Simulation of short-crested waves with SWAN – User Manual. Version 3.04, rev. 11114. Deltares, Delft, The Netherlands.
Search in Google Scholar Back to article
Deltares 2010b. Delft3D-FLOW. Simulation of multi-dimensional hydrodynamic flow and transport phenomena, including sediments – User Manual. Version 3.04, rev. 11114. Deltares, Delft, The Netherlands.
Search in Google Scholar Back to article
Fleming, C.A. (1990). Principles and Effectiveness of Groynes. In K.W. Pilarczyk (Ed.), Coastal Protection (121-156). Rotterdam, the Netherlands: Balkema Press.
Search in Google Scholar Back to article
Fredsöe, J. (1984). Turbulent boundary layer in wave-current interaction. Journal of Hydraulic Engineering ASCE. 110: 1103-1120.
Search in Google Scholar Back to article
Hanson, H., Thevenot M. & Kraus C. (1996). Numerical simulation of shoreline change for longshore sand waves at groin field. In proceedings of 25th International Conference on Coastal Engineering, September 2-6 (pp. 4024-4037). Orlando, USA: ASCE.
Search in Google Scholar Back to article
Hanson, H., Larson M. & Kraus N. (2010). Modelling long-term beach changes under interacting longshore and cross-shore processes. In proceedings of 32th International Conference on Coastal Engineering, 30 June – 5 July (electronic edition). Shanghai, China: Coastal Engineering Research Council.
Search in Google Scholar Back to article
Koerner, G. & Koerner R. (2006). Geotextile Tube Assessment Using a Hanging Bag Test. Geotextiles and Geomembranes. 24: 129-137.
Search in Google Scholar Back to article
Kunz, H., (1996). Groynes on the East-Frisian Islands: History and experiences. In proceedings of 25th International Conference on Coastal Engineering, September 2-6 (pp. 2128-2141). Orlando, USA: ASCE.
Search in Google Scholar Back to article
Leshchinsky, D., Leshchinsky O., Ling H.I. & Gilbert P.A. (1996). Geosynthetic tubes for confining pressurized slurry: some design aspects. Journal of Geotechnical Engineering, ASCE, 122(8): 682-690.
Search in Google Scholar Back to article
Nakamura, S. (2010). Passage rate of bedload transport due to a groin in consideration of wave climate. In abstracts of 32th International Conference on Coastal Engineering, 30 June – 5 July (paper 160). Shanghai, China: Coastal Engineering Research Council.
Search in Google Scholar Back to article
Pilarczyk K. & Zeidler R. (1996). Offshore breakwater and shore evolution control. Rotterdam, the Netherlands: A. A. Balkema.
Search in Google Scholar Back to article
Pruszak, Z., Ostrowski R., Skaja M. & Szmytkiewicz M. (2000). Wave climate and large-scale coastal processes in terms of boundary conditions. Coastal Engineering Journal, 42 (1): 31-56.
Search in Google Scholar Back to article
Pruszak Z. (2004). Polish coast-two cases of human impact. BALTICA, Vol. 17 (1), 34-40.
Search in Google Scholar Back to article
Raudkivi, A. & Dette H. (2002). Reduction of sand demand for shore protection. Coastal Engineering, 45: 239-259. DOI: 10.1016/S0378-3839(02)00036-4.
Open DOI Search in Google Scholar Back to article
Schoonees, J., Theron A. & Bevis D. (2006). Shoreline accretion and sand transport at groynes inside the port of Richard Bay. Coastal Engineering, 53: 1045-1058. DOI: 10.1016/j.coastaleng.2006.06.006.
Open DOI Search in Google Scholar Back to article
Schönhofer, J. (2014). Rip currents at beach with multiple bars – theoretical description and in-situ observations. PhD thesis, IBW PAN, Gdańsk, 172 pp. (in Polish).
Search in Google Scholar Back to article
Trampenau, T., Goericke F. & Raudkivi A. (1996). Permeabile pile groins. In proceedings of 25th International Conference on Coastal Engineering, September 2-6 (pp. 2142-2151). Orlando, USA: ASCE.
Search in Google Scholar Back to article
Uno, Y., Goda Y. & Nobuyuki O. (2010). Suspended-sediment-based beach morphology model applied to submerged groin system. In proceedings of 32th International Conference on Coastal Engineering, 30 June – 5 July (electronic edition). Shanghai, China: Coastal Engineering Research Council.
Search in Google Scholar Back to article
Van der Meer, J.W. & d’Angremond K. (1991). Wave transmission at low crested structures. In the proceedings of Conference Coastal Structures and Breakwaters. November 6-8 (pp. 25-42). London, England: ICE & Held.
Search in Google Scholar Back to article
Van Rijn, L.C. (1993). Principles of sediment transport in rivers, estuaries and coastal seas. The Netherlands: Aqua Publications.
Search in Google Scholar Back to article

Groins and submerged breakwaters – new modeling and empirical experience

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