Geotechnical study in Guadalcázar

In Guadalcázar, the near-surface ground composition shows a predominance of fine sands and silts, accompanied in importance by limestones, dolomites and marbles. The presence of carbonate formations may positively influence bearing capacity, enabling conventional foundations, whereas silty levels or those with loose sands require specific checks to control possible settlement. For their part, the formations generally exhibit low permeability, although they may capture shallow aquifers in a localised manner—an aspect to be considered for water management in the project and during execution of the works.

In the seismic aspect, Guadalcázar shows notable seismicity, with a total of 54 events over 30 years and a maximum magnitude value (Mmax) of 4.6, which means that seismic actions must be taken into account in the structural and foundation design. The absence of clayey strata rules out the risk of expansivity, and there are also no karst-related constraints in the area. As the most determining element, control of the behaviour of the sandy levels and compliance with the seismic regulations will be key for any geotechnical study in this municipality.