Estudio geotécnico in Cájar

In the municipality of Cájar, deposits of fine sands and silts predominate, representing close to 70% of the substrate, whereas the overconsolidated hard clays and marls make up the rest. The characteristics of the sandy and silty-sandy soils provide an adequate bearing capacity for conventional shallow foundations, although the occasional presence of hardened clays may locally increase this capacity. The extensive underlying aquifers, with high permeability, require specific control during the excavation phase and monitoring of the groundwater level, particularly for larger or deeper works.

Seismicity in Cájar is very low, with a record of only 4 minor events every 30 years and a maximum magnitude of 1.7, which implies a practically negligible seismic risk for structural design. The risk associated with expansive soils is low, since expansive clays occur in a subordinate way or only in areas not affected by any significant environmental deficit. In conclusion, the main geotechnical limiting factor in Cájar comes from the presence of aquifers and the occasional variability of the lithology; these factors determine the optimum foundation viability and method.