Estudio geotécnico in Areatza

In Areatza, substrates of limestones, dolomites and marbles predominate, accompanied by sandstones, conglomerates and flysch, while fine sands and silts are less frequent. These materials, generally compact and competent, provide good conditions for bearing capacity and usually ensure stable behaviour for shallow or semi-deep foundations, although the formations present often have low permeability and may contain superficial aquifers that should be taken into account in certain projects.

Seismicity in the area, with 94 recorded events in the last 30 years and a maximum moderate magnitude of 3.7, requires attention in the calculations but does not imply exceptional structural demands. It is essential to verify the existence of karst in the substrate, especially in the presence of a significant amount of carbonate rocks, as the development of cavities could affect the stability of the foundations. The absence of a clayey substrate rules out the risk of expansivity, highlighting as the main constraint the detailed assessment of the potential for karstification before proceeding with the final geotechnical study design.