Estudio geotécnico in Guadiana

In Guadiana, soils formed by slates and schists predominate—metamorphic materials with very low permeability and high shear strength values—providing good conditions for shallow direct foundations. On a smaller scale, occasional packages of sandstone, conglomerates and flysch can be found, as well as compact gravels and sands. All of these are competent materials, although their presence is limited. Overconsolidated clays and marls, although rare, can locally affect bearing capacity; however, the non-clayey substrate excludes significant risks of expansivity.

Seismicity in Guadiana is notable, with more than 200 events over 30 years and a maximum recorded magnitude of 4.6. This aspect must be incorporated into the structural design calculations for the project. Due to the possible occurrence of karstification, especially in areas where the substrate allows dissolution processes, it is essential to verify the presence of cavities or instabilities before defining the foundation type. Thus, controlling seismic activity and checking for karst processes are essential conditions in the geotechnical study of the area.