Geotechnical study in Catarroja

In Catarroja, white, soft expansive clays predominate, accompanied by fine sands, silts, and in smaller proportions, gravels and compact sands. This stratigraphic profile indicates the possibility of variable bearing capacities that require a detailed geotechnical study before defining the most suitable foundation typology. Additionally, the occasional presence of masses of water and the very permeable nature of the underlying aquifers may affect the saturation of the near-surface strata, modifying the mechanical behaviour of the soils and influencing the determination of the optimal levels for supporting the structure.

On the other hand, seismicity in Catarroja is very low, with scarcely one recorded event every 30 years and a maximum magnitude of 3.1, which minimises seismic requirements in structural design. However, the existence of a potential karst due to the presence of limestones, albeit residual, requires carrying out specific studies to rule out the appearance of cavities or subsidence before proceeding with foundation works. As the main constraint, the combination of expansive potential in certain areas and verification of the risk of karst will set the direction for the geotechnical study works in this municipality.