Estudio geotécnico in Dueñas

In Dueñas, the geological substrate is dominated by limestones, dolomites and marbles, accompanied in smaller measure by compact gravels and sands. This lithology facilitates a high bearing capacity, making it suitable for shallow foundations in most cases. However, the local presence of gypsum, anhydrite and salts introduces dissolution risks, which may negatively affect ground stability, especially in areas with high groundwater levels or close to masses of water; it is essential to assess possible susceptibility to alteration before defining the foundation. Permeability, aided by highly productive aquifers, requires due consideration of appropriate drainage measures in building projects.

The seismic activity in Dueñas is classified as notable, with 57 recorded events over 30 years, although its maximum magnitude is moderate (Mmax 4). The possibility of karst occurring in the carbonate rocks requires a specific verification of this before proceeding with foundation design, since the presence of voids or cavities represents a relevant constraint. As this is a non-clayey substrate, risks of expansivity are ruled out. In short, the main conditioning factor for the geotechnical study in Dueñas will be the characterisation and identification of possible karstic and dissolution-related phenomena, which are essential to ensure the feasibility and safety of the construction project.