Estudio geotécnico in Torrejón de la Calzada

In Torrejón de la Calzada, the subsoil is mainly dominated by sandstones, conglomerates and flysch; materials that make up more than 80% of the identified strata. These lithologies generally present good bearing capacity and allow the execution of conventional shallow foundations, although the secondary presence of limestones, dolomites and marbles may locally affect the uniformity of the ground. The existence of extensive aquifers, albeit with moderate permeability and output, requires appropriate hydrogeotechnical characterisation to avoid problems related to rising groundwater levels or possible differential movements.

Seismicity in the municipality is very low, with only 5 events over 30 years and a maximum magnitude of 3, which reduces the need for seismic constraints in structural design. There are no records of karstic ground in the area nor evidence of soils with a significant presence of expansive clays, as these are subordinate and tend to be found in areas where the climate does not induce relevant expansivity. Thus, the main geotechnical constraint in Torrejón de la Calzada will be the proper characterisation of the dominant materials and the detailed study of groundwater hydrology.