Estudio geotécnico in Santa Úrsula

In Santa Úrsula, the dominant substrate is composed mostly of sandstones, conglomerates and flysch, accounting for more than 90% of the soils, occasionally accompanied by granite, gneiss and igneous materials. These formations usually provide an adequate bearing capacity for conventional foundations, although flysch areas may exhibit variable behaviour; therefore, it is essential to determine the quality and compaction of the strata on each plot. The presence of perched aquifers and significant permeability demands particular attention when choosing the foundation type, especially if groundwater levels are found close to the surface.

The recorded seismicity is very low, with just 4 events over 30 years and a maximum magnitude of 1.8, so it does not represent a relevant constraint for structural design in the area. The municipality does not show any karst features or risks due to clay expansivity, simplifying the stability analysis. As the main geotechnical recommendation, it is advisable to assess in detail the interaction between foundations and groundwater levels in highly permeable sectors, as this may affect the durability and performance of the building’s support.