Geotechnical study in La Puebla de Alfindén

In La Puebla de Alfindén, the prevailing geotechnical subsoils correspond to gypsum, anhydrite and salts—very frequent and characteristic materials in the region. These soils exhibit low permeability at the surface, although they may contain aquifers at depth. The presence of salts and gypsum implies a significant risk of dissolution, which can affect both bearing capacity and the durability of foundations. For this reason, it is essential to address the selection and sizing of the foundation, taking these dissolution processes into account and the need to prevent associated differential settlements.

Local seismicity is notable, with 68 events over 30 years and a maximum magnitude (Mmax) of 4,8, which requires that this factor be considered in the structural design of buildings. Although there are certain subordinate expansive clays, these occur mainly in areas where their effect is attenuated by climatic conditions, showing a limited local risk due to expansivity. The main constraint for geotechnical studies in La Puebla de Alfindén is the interaction between the solubility of the materials and moderate seismic activity—key aspects for ensuring the safety and durability of foundation works.