Estudio geotécnico in Las Navas del Marqués

In Las Navas del Marqués, a substrate of granite, gneiss and other igneous rocks predominates: highly resistant materials with low alteration, which provide excellent conditions in terms of bearing capacity for shallow foundations. The very low permeability characteristic of these soils limits the flow of groundwater, although small aquifers may be present in areas of near-surface fracturing. This rocky nature considerably reduces the risks of differential settlement and facilitates the design of shallow strip or slab foundations, provided that adequate excavation is ensured.

Seismic intensity in the municipality is moderate, with 32 events occurring over the last 30 years, although with a maximum recorded magnitude of 2.8, which implies a low seismic risk that does not constitute a significant restriction for conventional structural design. The non-clayey substrate rules out risks associated with expansive soils and allows expansive-related considerations to be discounted. In summary, the main geotechnical constraint is the presence of rock masses, requiring proper characterisation to optimise the foundation systems.