Estudio geotécnico in Azkoitia

In Azkoitia, soils formed by limestones, dolomites and marbles predominate, accounting for more than 60% of the substrate. These lithologies, which are generally compact in nature, offer high bearing capacities and are suitable for shallow foundations provided they do not present significant cavities or discontinuities. The second group of materials corresponds to sandstones, conglomerates and formations of the flysch type, which, although less frequent, may have varying geotechnical parameters and, in some cases, require specific studies to determine their degree of consolidation. Finally, the presence of igneous rocks such as granites and gneisses is sporadic, but when they do occur, they are optimal from a geomechanical point of view.

Seismicity in Azkoitia is very low, with just 3 recorded events in the last 30 years and a maximum magnitude of 2.1, which limits the influence of this factor on structural design. There is no risk from expansive clays, as the dominant substrate is non-clayey. However, due to the predominant presence of carbonate rocks, it is crucial to verify the existence of karstification before constructing, since the possible formation of underground cavities could compromise the stability of the building. Therefore, the most relevant factor to study in geotechnical works in Azkoitia is the potential occurrence of karst phenomena in the ground.