Estudio geotécnico in Guareña

In Guareña, substrates are mainly composed of compact gravels and sands, slates and schists, along with a significant proportion of overconsolidated clays and marls, all accompanied by outcrops of granite and sandstones. These materials, for the most part of low permeability, give the ground good bearing capacity and allow conventional shallow foundations to be designed. It is important to pay attention to the occasional presence of fine sands and silts, and to masses of water, which may locally affect soil strength and the stability of foundations.

Seismicity in Guareña is very low, with only 3 events occurring over 30 years and a maximum magnitude of 2.3, which minimises the impact of seismic actions on structural design. The geotechnical study rules out the presence of risk from expansive soils, as the substratum is not clayey, and there are also no concerns regarding karst processes. In this context, the main condition for construction is the correct characterisation of groundwater levels and the point-by-point identification of less competent lithologies, ensuring that the foundation always bears on stable materials.