Estudio geotécnico in Campillo de Llerena

In Campillo de Llerena, slates and schists predominate: materials of compact character and generally low permeability, which governs the infiltration and retention of water in the subsoil. Compact gravels and sands are also frequent, providing a suitable bearing capacity for shallow foundations, while the occasional presence of clays and hard marls may increase the stiffness of the subsoil under certain conditions. The mix with fine sands and silts indicates the possibility of localised variations; therefore, it is essential to characterise the stratigraphy of each plot correctly before building.

Seismicity in the area is very low, with barely any recorded events in the last 30 years and a maximum magnitude of less than 4. The absence of karst processes and the non-clayey nature of the substrate rule out risks associated with both expansivity and instability due to dissolution or collapse. The main geotechnical constraint lies in the local heterogeneity of the materials and the low permeability of the formations, which can affect the drainage of water and the foundation conditions.