Estudio geotécnico in Alfoz

In Alfoz, the dominant geotechnical subsoil is composed of slates and schists, materials that represent more than 50% of the territory and significantly influence the bearing capacity of the ground. These soils provide generally stable foundations, although they exhibit local variations in strength and may require detailed studies to optimise the geotechnical design. Areas where granite, gneiss or other igneous rocks crop out show even more favourable parameters for shallow foundations, whereas sandstone and conglomerate formations, though less frequent, must be assessed in terms of their structural heterogeneity.

The seismic analysis of Alfoz indicates very low activity, with only three events in the last three decades and a maximum magnitude of 2, which minimises the need to consider special provisions in structural design for earthquakes. There are no karst processes and no materials with expansive behaviour are identified, ruling out risks associated with this phenomenon thanks to the predominance of a non-clayey subsoil. Thus, the main condition to be studied in the area lies in the local variability of the lithology, which must be analysed according to each specific site.