DESIGN AND CONSTRUCTION OF THE WESTERN BREAKWATER FOR THE OUTER PORT AT PUNTA LANGOSTEIRA (A CORUÑA, SPAIN)

Antonio Corredor Molguero, M. Esther Gómez-Martín, Enrique Peña, Josep R. Medina

Abstract


This paper describes the design process, hydraulic stability tests and construction of the Cubipod® armored Western breakwater at Punta Langosteira (Outer Port of A Coruña, Spain), located on the Atlantic coast of Spain. The environmental, geotechnical, economic and logistic conditions favored randomly-placed Cubipods for single-layer armoring of the trunk. 3D hydraulic stability tests were carried out to validate the final design of the Western Breakwater; two models were tested with single- and double-layer Cubipod armors in the trunk and roundhead, respectively. Single-layer 25- and 30-tonne Cubipod® armors were used for the trunk section and a double-layer 45-tonne Cubipod® armor was used for the roundhead. During this project, new challenges were overcome, such as constructing a transition between single and double-layer armors, and manufacturing and handling of 45-tonne Cubipods. The transition in the armor thickness was solved by modifying the filter thickness under the main armor, to ensure a homogeneous external armor profile. Breakwater construction finished in November 2016 with no significant problem or delay in the original schedule.

Keywords


Hydraulic Stability; Armor Unit; Cubipod; Construction; Single-layer; Double-layer; Breakwater

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References


Burcharth, H.F., Maciñeira, E. and Noya, F. 2015. Design, construction and performance of the main breakwater of the new outer port at Punta Langosteira, A Coruña, Spain, in Design of Coastal Structures and Sea Defenses, Ed. Y.C. Kim, World Scientific.

Corredor, A., Santos, M., Peña, E., Maciñeira, E., Gómez-Martín, M.E. and Medina, J.R. 2014. Single-layer Cubipod armored breakwaters in Punta Langosteira (Spain). Proc. of 34th Int. Conf. on Coastal Eng., ASCE, 34(2014): structures.12.

Maciñeira, E., Peña, E., Bajo, V., Sande, J. and Noya, F. 2015. Probabilistic design of the secondary breakwater in the new harbour basin of the outer port of A Coruña. Proc. Coastal Structures and Solutions to Coastal Disasters Joint Conference, ASCE 2015, 9-11 Sep. 2015, Boston-Mass. (in press).

Medina, J.R. and Gómez-Martín, M.E. 2012. KD and safety factors of concrete armor units. Proc. of 33rd Int. Conf. on Coastal Eng., ASCE, 33(2012), structures.29.

Medina, J.R. and Gómez-Martín, M.E. 2016. Cubipod® Manual 2016. Valencia: Universitat Politècncia de València. http://hdl.handle.net/10251/72391.

Pardo, V., Herrera, M.P., Molines, J. and Medina, J.R. 2014. “Placement tests, porosity and randomness of cube and Cubipod armor layer”. J. Waterway, Port, Coastal, Ocean Eng., 140(5), 04014017.

Santos, M., Corredor, A., Maciñeira, E., Bajo, V., Gómez-Martín, M.E. and Medina, J.R. 2016. Innovative aspects in design and construction of the western breakwater for the outer port of A Coruña at Punta Langosteira (Spain). RIBAGUA – Revista Iberoamericana del Agua 3 (2) 89–100 (in Spanish). http://dx.doi.org/10.1016/j.riba.2016.07.005.




DOI: https://doi.org/10.9753/icce.v35.structures.14