Geotechnical study in Argamasilla de Calatrava

In Argamasilla de Calatrava, the dominant subsoil consists of slates and schists, metamorphic materials that exhibit low permeability and good stability conditions. These soils, together with a significant proportion of sandstones, conglomerates and flysch, allow direct foundations in most cases, provided that layers of poorly compacted gravels or local clayey lenses are avoided. The hard formations of overconsolidated clays and marls provide strength, while water-mass levels must be identified to prevent drainage problems during construction.

Seismicity in the area is moderate, reflecting 10 events in the last 30 years with a low maximum magnitude (Mmax 2.1), which implies that seismic risk is not a relevant constraint for structural design. Since the subsoil is fundamentally non-clayey, the risk associated with expansivity is ruled out. The main factor to be examined in geotechnical studies is therefore the identification of layers with possible water presence and the variable nature of the near-surface materials to ensure adequate bearing capacity and foundation stability.