| Summary: | [EN] Low Crested Structures (LCS) are commonly used as detached breakwaters for beach protection and stabilisation. In recent years, erosion processes are intensifying along the world's coastline due to climate change and the corresponding rise in sea level. In addition, rising temperatures, ocean acidification and other human-induced phenomena pose a serious threat to the world's coral reefs. Their progressive degradation is a clear indicator of the poor quality of marine ecosystems and the threat to biodiversity. Homogeneous Low Crested Structures (HLCS) are a maritime structural typology that offers multiple advantages in terms of coastal protection, dissipating part of the energy of incident waves, and favouring the conservation and regeneration of marine ecosystems such as coral reefs. The DELOS project allowed the development of LCS design methods. However, these are not valid for homogeneous structures. For this reason, the HOLOBREAK project, under development at the LPC-UPV, focuses on the study of HLCS formed by Cubipods, analysing their performance in terms of wave transmission and reflection, in order to obtain design criteria. On this context, this Master's Thesis has been carried out. 2D physical tests have been carried out on five-layer HLCS formed by Cubipods arranged according to triangular placement meshes. Subsequently, the results obtained have been analysed to study the wave transmission that occurs in this type of structures. Relative freeboard (Rc/Hm0) and steepness (s0p) are two of the most recommended variables in the scientific literature for the calculation of the transmission coefficient of LCS. In this project, neural networks have been used to study the influence of these variables on the transmission observed in the Cubipod HLCS tested. As a result, an empirical expression has been obtained for the estimation of the transmission coefficient in this type of structure. For the analysis of wave tests, a correct recording of the water level is indispensable. This is done by means of ...
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