Geotechnical study in Cuevas Bajas

In Cuevas Bajas, fine sands and silts predominate, followed by formations of limestones, dolomites and marbles, which results in a heterogeneous subsoil with frequent layers of weak, friable materials and carbonate rocks. These characteristics condition the ground bearing capacity, allowing, in many cases, direct foundations on competent rocks, although it is necessary to assess the continuity and characteristics of the sands and silts. In addition, the presence of occasional masses of water and igneous materials, albeit in a smaller proportion, may influence the choice of the most suitable foundation type depending on the specific location.

The area shows very low seismicity, with only 5 events in the last 30 years and a maximum magnitude of 1.9, so the influence of seismic action on structural design is low. However, given the significant presence of limestones, dolomites and marbles, it is essential to rule out the existence of cavities or karst processes before building, as these could seriously affect the stability of the structures. The non-clayey substratum removes the risk of expansiveness, with the development of karst phenomena being the main geotechnical constraint in this municipality.