Estudio geotécnico in Alcañiz

In Alcañiz, formations of sandstones, conglomerates and flysch predominate, constituting the most common geological base, accompanied by significant levels of gypsum, anhydrite and salts, which gives the soils highly variable characteristics in terms of bearing capacity. These lithologies generally provide good conditions for foundation works, especially the compact sandstones and conglomerates, whereas the occasional presence of fine sands, silts and gravel zones may require targeted inspections due to possible variability in strength. It is important to highlight the potential risk of dissolution associated with gypsum and salts, which means that the long-term stability of the supporting ground must be checked before executing any structure.

Seismicity in Alcañiz is moderate, with 13 events over the last 30 years and a maximum magnitude of 2.3, which implies a low seismic requirement for structural designs. On the other hand, the substrate does not contain clays, ruling out the risk of expansiveness in the area where the development will be established. The possible presence of karstification, driven by the gypsum and carbonate formations, must be verified through a specific geotechnical test, as it can significantly affect the uniformity and safety of the foundation. The main geotechnical constraint in Alcañiz will therefore be the need to analyse carefully the existence of karst processes and the action of gypsum in the design of safe foundations.