Estudio en modelo físico 3D de las averías del espigón de la playa de La Zurriola (San Sebastián)

On February 2nd 2014 a severe storm destroyed part of the La Zurriola Beach groin in San Sebastián. This groin had been recently studied at the Centre for Harbours and Coastal Studies of CEDEX due to the damage that the structure suffered since 2007 in some locations. The study was composed of three physical model tests of the groin behaviour under extreme waves, at the scale 1/40. These tests included the current situation (until 2014), the armour layer reinforcement and finally the study of the probable behaviour without that reinforcement. The model reproduced quite well the location and typology of the observed damage, along with the destruction that came only a few months later. As well, the reinforcement was formerly proposed during the reparation works carried out in the summer 2014.