Geotechnical study in Quirós

In Quirós, the dominant geological substrate is made up mainly of limestones, dolomites and marbles, which results in good bearing capacity for most foundations. Shales and schists are occasional and may require greater assessment in specific projects, whereas deltaic silts and peats, although rare, represent materials that should be avoided as a support level due to their low strength. The overall ground permeability is low, although shallow aquifers may occur locally within some limestone formations.

Seismicity in Quirós is moderate, with 11 recorded events in the last 30 years and a low maximum magnitude, which limits the need for advanced measures against earthquakes. Given the significant presence of limestones and dolomites, it is essential to verify the existence of karst processes before designing the foundation, as these could affect long-term stability. As the substrate is non-clayey, the risk of expansiveness is ruled out as a relevant conditioning factor for geotechnical solutions in the area.