Estudio geotécnico in Ledaña

In Ledaña, the predominant geological substrate is formed by limestones, dolomites and marbles, which provides a high-competence ground for foundations due to its strength and low deformability. These formations, widely distributed, usually exhibit low permeability at the surface, although they may host significant aquifers at depth. For any building project, the bearing capacity of these materials allows the adoption of shallow foundation solutions, provided that adequate characterisation of the rock continuity and condition is ensured.

The seismicity in the municipality is moderate, with 40 events in the last 30 years and a maximum recorded magnitude of 4.1, which suggests that, although it is not the most severe constraint, it should be analysed in the context of structural and regulatory factors. Verification of the risk of karstification in the limestones and dolomites is also essential prior to any foundation, since the presence of cavities can influence, in a decisive manner, the stability and uniformity of the building’s support. The non-clayey substrate rules out the risk of expansivity; karst is therefore the main geotechnical factor to be investigated.