Estudio geotécnico in Villarta de San Juan

The subsoil of Villarta de San Juan is dominated by limestones, dolomites and marbles, which indicates the presence of hard, competent materials with good bearing capacity for foundation projects. In smaller proportion, compact gravels and sands may be found, whose stability is usually favourable for shallow foundations. However, the occasional presence of silts and peats points to areas where the foundation should be avoided, due to their very low load-bearing capacity and high potential for differential settlement. Similarly, the appearance of gypsum, anhydrite and salts, although rare, introduces a risk of dissolution, which may affect the long-term stability of structures.

As regards seismicity, the municipality records high activity, with 200 events over 30 years and a maximum magnitude of 5.1, so seismic actions must be taken into account in the structural design of any building. The non-clayey substrate rules out risks associated with expansive materials, but the possible presence of karst phenomena requires thorough verification before designing and carrying out the foundations. In summary, the main geotechnical constraint in Villarta de San Juan is the combination of potential karst risk and an active seismic environment.