Estudio geotécnico in Brunete

In Brunete, detrital materials predominate as the substrate, mainly sandstones, conglomerates and flysch, which account for more than 87% of the soils in the municipality. These deposits, due to their texture and composition, generally provide good conditions for bearing capacity, facilitating the execution of shallow foundations in most cases. Occasional outcrops of limestones, dolomites and marbles indicate the presence of specific areas with higher strengths, but require specific assessment given their lower frequency. Likewise, the existence of aquifers with moderate permeability calls for special attention during excavation phases and control of the groundwater table.

Local seismic activity is considered very low, with only a single recorded event over 30 years and a maximum magnitude (Mmax) of 1.8, which implies a negligible impact on structural design. As regards expansivity, although clays exist in the matrix, their non-expansive or non-dispersive nature significantly minimises the risk of expansivity in the ground. No risks associated with karst or dissolution are presented. The main geotechnical constraint to consider in Brunete is the heterogeneity of the soils, which requires appropriate characterisation to optimise the foundation design solution.