Estudio geotécnico in Borehole at Guadalajara

In Pozo de Guadalajara, soils formed by limestones, dolomites and marbles predominate, with sandstones, conglomerates and flysch also occurring in significant proportions. These lithologies form a competent substrate with generally high bearing capacity, suitable for shallow or direct foundations. The presence of extensive aquifers, albeit with moderate production and permeability, implies that local variations in ground behaviour may occur, which necessitates precise characterisation prior to any foundation execution.

Seismicity in the area is considered high, with 200 recorded events over the last 30 years and a maximum magnitude of 4.6; therefore, it must be included as a fundamental requirement in the structural design of new works. Given the dominant calcareous nature, it is necessary to thoroughly verify the existence of karst phenomena before underpinning, as hidden cavities or unexpected subsidence may be present. The non-clayey subsoil rules out the risk of expansivity, placing karst control and the seismic response as the main conditioning factors for the geotechnical study in this municipality.