Estudio geotécnico in Huétor de Santillán

In Huétor de Santillán, the substrata are mainly formed by slates and schists, together with a considerable presence of limestones, dolomites and marbles. These materials generally provide a good bearing capacity, suitable for conventional buildings and foundations. However, the existence of occasional sequences of fine sands and silts, as well as the presence of gypsum, anhydrite and salts, necessitates careful assessment due to risks associated with their dissolution and possible differential settlements. In this context, it is recommended to avoid direct foundation on horizons with gypsum or loose materials and to prioritise specific studies to characterise the depth and nature of the bearing level.

Seismicity in the municipality is moderate, with 10 recorded events over the last 30 years and a maximum magnitude of 2.9, which implies low-impact structural seismic design requirements. It is essential to take into account the possible presence of karst, especially in areas of limestone and dolomite, as it can generate voids and subsidences that condition the foundation; this verification must be carried out before any work. On the other hand, since the dominant substrate is not clayey, the risk of expansivity is ruled out, placing the main geotechnical concern on the presence of potentially soluble materials and on controlling the development of karst.