Estudio geotécnico in Villanueva de Algaidas

In Villanueva de Algaidas, limestone, dolomites and marbles predominate as substrate materials, followed by fine sands, silts and, to a lesser extent, sandstones, flysch and igneous rocks. These lithologies, for the most part hard and competent, provide good conditions for bearing capacity for foundations. However, in sandy or silty layers it may be necessary to carry out a precise characterisation to determine their compactness and avoid possible differential settlements. The generally low permeability of these materials implies a low risk of fine migration, but surface aquifers may occur and should be considered in the foundation design.

Seismicity in the area is very low, with only 8 recorded events over three decades and a low maximum magnitude, so seismic risk can be regarded as minimal for structural design. It is worth highlighting the presence of karst processes associated with limestones and dolomites; it is therefore essential to investigate the possible development of cavities before executing any foundation, as karst is the main technical constraint for the municipality and must be rigorously assessed in any geotechnical study. The non-clayey substrate rules out expansivity risks.