Estudio geotécnico in Domingo Flórez Bridge

In Puente de Domingo Flórez, the predominant geological substrate is made up of slates and schists, accounting for more than 90% of the soil types in the area. These formations are characteristically of very low permeability, although they may, in specific cases, present surface aquifers. For geotechnical studies, this nature of the ground implies an adequate bearing capacity for shallow foundations provided that the competent level is reached, and the low permeability minimises the risk of landslides or instability due to infiltration.

The seismic activity recorded in the municipality, with 60 events over the last 30 years and a maximum magnitude of 3.1, is classified as noticeable, although the expected intensity is low. There are no risks associated with karst, and the fact that there is a non-clayey substrate completely rules out the possibility of expansivity. The most relevant condition for the foundation lies in the local variability of shallow aquifers and the need to ensure adequate drainage.