Estudio geotécnico in Fonsagrada, A

In Fonsagrada, the predominant soils are mainly composed of slates and schists, materials with very low permeability that typically exhibit a medium bearing capacity and a very stable behaviour as a support for conventional foundations. This lithology reduces infiltration and, unless there is locally occurring surface groundwater, minimises risks linked to saturation or water-related collapse at depth. The absence of large areas of soft soils facilitates the design of shallow foundations, provided that the integrity of the rock substrate present is verified.

Seismic activity is moderate, with 39 events in the last 30 years and a maximum magnitude of 3.7, which does not require any additional specific structural measures beyond basic regulations. Since the area may show karst features due to the possible existence of dissolutions in the rock formations, it is essential to check for the absence of cavities or instabilities associated with karst before carrying out any foundation. The non-clayey substrate removes concern regarding expansivity, with investigation into the possible presence of karst-related phenomena being the key determining factor in local geotechnical studies.