Análisis de la estabilidad hidráulica de morros monocapa de cubípodos mediante estudio en el modelo físicoinfluencia del tamaño del morro

Abstract

The present thesis covers the analysis of the stability of monolayers protected by a mantle of cubipods. This study was carried out at the CITEEC facilities "Center for Technological Innovation in Building and Civil Engineering" at the University of A Coruña through physical model tests. These trials have covered a wide range of the variables involved in the evolution and stability of this type of hills. Focusing above all on the variable relative size of the breakwater´s roundhead. For all this, the knowledge of single-layer armor of the breakwater´s roundhead has been expanded accurately. In the first place, the analysis of the damage in these structures it has not been a very studied topic. At the moment has been defined when a piece doesn’t contribute in the stability on the armour layer. From which a proposed level of damage, star of damage and failure, has been made. The study of a new methodology for the measurement of damage, 3D laser LiDAR , that is able to analyze the movements of the pieces on armour, allowing the definition of the first stages of damage, the evolution of porosity, and even the number of fallen pieces, as well as the location of critical points of damage, which will allow the definition of maintenance strategies. In the present thesis two new formulations have been developed for the study of this typology of structures. In addition, a new design point is proposed depending on the roundhead weakness, which has been studied by the stability reserve between the start of damage and the failure. The stability of the single-layers of cubipods has corroborated the latest research published, in which the existence of different behavior patterns in terms of stability according to the size of the roundhead is verified. The results of this work will allow the design of single-layer armors efficiently by improving the design of engineering projects for new port facilities. Also, knowing the evolution of the damages, will allow reducing maintenance costs of these infrastructures to be able to realize strategies of action more optimized. Finally, the knowledge of this typology of port work is advanced, serving as a basis for the future lines of research described in Chapter 1.