Estudio geotécnico in Daganzo de Arriba

In Daganzo de Arriba, the predominant subsoil is composed of sandstone, conglomerates and flysch, which account for most of the ground conditions, followed by shales, schists and, to a lesser extent, limestones, dolomites and compacted gravels. These materials usually exhibit good bearing capacities for shallow foundations, although the occasional presence of shales and schists may introduce some heterogeneity in the ground resistance. The high permeability, due to the existence of extensive and productive aquifers, generally facilitates natural drainage, which is favourable for the execution of foundations, but it is necessary to check the hydrodynamic state to avoid undermining problems or differential settlements in fluctuating groundwater.

Seismicity in the municipality is very low, with only around 5 recorded events in the last 30 years and a low maximum magnitude (Mmax 3), so it does not represent a relevant constraint for structural design. There is no risk of karstification and the expansive potential is limited to the subordinate presence of expansive clays or those emplaced in climatic zones with a low influence of expansivity, reducing the likelihood of significant swelling. Thus, the main geotechnical factor to consider in Daganzo de Arriba lies in the correct characterisation of the groundwater level and the local heterogeneity of the materials, rather than in factors such as seismicity, karst or expansivity.