Geotechnical study in Nava de la Asunción

In Nava de la Asunción, soils formed by compacted gravels and sands predominate, accompanied to a lesser extent by calcareous and dolomitic formations. This sandy-gravelly substrate is characterised by an adequate bearing capacity and a good response to settlement under load, facilitating direct foundation solutions in most projects. However, the occasional presence of white or soft expansive clays, although in the minority, may require additional geotechnical investigations in localised areas given their possible impact on foundation stability.

Local seismic activity is significant, with approximately 200 events recorded over 30 years and a maximum magnitude (Mmax) of 4.7, which is why the seismic response must be assessed specifically in structural design. Since expansivity is linked to subordinate clays and occurs mainly in areas without a water deficit, the risk is limited but not zero in specific sectors. In conclusion, seismicity is set out as the most important constraint when defining the design and execution criteria for geotechnical studies in the municipality.