Geotechnical study in Polinyà de Xúquer

In Polinyà de Xúquer, the predominant subsoil is formed by fine sands and silts; these materials account for more than 80% of the municipal territory. In general, these soil types exhibit a moderate bearing capacity and, due to their particle size distribution, may require specific measures to control compressibility and the possible differential settlement under load. Gravel and compact sands, although less frequent, provide better conditions for direct foundations, whereas the occasional presence of expansive clays and masses of water requires detailed characterisation to avoid stability problems and ensure the correct selection of the support level.

Seismicity in the area is very low, with only a single event over 30 years and a maximum recorded magnitude of 1.7, so it does not impose significant restrictions on structural design. There are also no karst risks or expansivity associated with the subgrade, since the dominant materials are not clayey. The main constraint for carrying out a geotechnical study in Polinyà de Xúquer is determined by the weakly cohesive nature and the possible compressibility of the sands and silts, which requires a detailed analysis of their behaviour to guarantee the stability and durability of the foundations.