Estudio geotécnico in Navalcán

In Navalcán, geotechnical studies should focus on characterising a subsoil predominantly composed of granite, gneiss and other igneous rocks, followed by sandstones, conglomerates, flysch, and to a lesser extent slates and schists. These materials, generally compact and hard, offer excellent bearing capacity, which favours the design of shallow, direct foundations. The low presence of gravel and compact sands implies that the granitic soils predominate in supporting the structures; furthermore, the small amount of groundwater mass suggests that, although shallow aquifers may exist, they usually have no significant impact on the overall stability of the ground.

Seismic activity in Navalcán is high, with 200 events over 30 years and a maximum recorded magnitude of 5.1, which requires rigorous attention to seismic regulations in structural design. Since the subsoil is not clayey, the risk of expansivity is ruled out and there is no karst-related problem. The main factor conditioning geotechnical design in this municipality is seismicity, which constitutes the principal factor that must be considered in studies and in the foundation design.