Estudio geotécnico in Andújar

In Andújar, the predominant subsoil is formed by slate and schist, representing more than 60% of the surface composition, which largely determines the bearing capacity of the ground. These lithologies, generally of low deformability and good competence, are combined with the occasional presence of granite, gneiss and other igneous rocks, which likewise contribute to the stability and strength of foundations. The percentage of clays and hard marls present is minimal and does not significantly condition the foundation design calculations; therefore, favourable bearing capacity can be expected, although the low permeability of these materials means that possible accumulations of water in superficial layers must be considered.

Seismic activity in the municipality of Andújar lies within a moderate frequency range, with 21 events over thirty years and a maximum magnitude of 3.6. This magnitude does not impose special requirements on structural design for most buildings. The analysis of expansiveness shows no risks arising from expansive clays, since the dominant subsoil is not clayey, removing this constraint for the selection of the foundation type. No karstic developments have been detected in the area either. In summary, the main aspect to consider is the impermeable nature of the subsoil, which could influence the local drainage of water and the design of drainage solutions.