Estudio geotécnico in Palas de Rei

In Palas de Rei, the main geological substrate is composed of sandstones, conglomerates and flysch, accompanied in smaller proportions by shales and schists, as well as occasional occurrences of granite, gneiss and other igneous rocks. These materials are characterised by having low to very low permeability, although they may sometimes contain shallow aquifers. From a geotechnical point of view, this composition generally implies good bearing capacities for shallow foundations; however, it is advisable to analyse the local stability of the formations, especially in more schistose areas or where altered or fractured layers appear.

The recorded seismic activity in the municipality is moderate, with 21 events and a maximum magnitude (Mmax) of 3.1, which does not represent a significant structural hazard but does suggest considering a basic seismic assessment in projects. Since the substrate is not clayey, the risk of expansivity that could affect the foundations is ruled out. The main geotechnical constraint in Palas de Rei lies in the correct characterisation of lithological variability and in ensuring an adequate identification of the geotechnical profile in accordance with the ground’s heterogeneity.