Geotechnical study in Vilafranca del Penedès

In Vilafranca del Penedès, soils composed of compacted gravels and sands predominate, which gives the ground a notable bearing capacity and stability for construction. These granular materials are suitable for direct foundations, as they ensure good support and reduce the risks of differential settlement. Although the surface permeability of these formations is usually low, the presence of possible deep aquifers requires an analysis of local hydrogeological conditions before carrying out deep foundations.

As regards seismicity, the recorded seismic activity is very low, with only 5 events over 30 years and a low maximum magnitude (Mmax 3), so it does not constitute a significant concern for structural design. However, since the area may present karst-related phenomena, it is essential to verify the presence of cavities or dissolution processes in the subsoil before proceeding with the foundation. The fact that the substratum is not clayey rules out risks associated with expansiveness, so the main aspect to be monitored in local geotechnical studies is the possible impact of karst at the project site.