Estudio geotécnico in Valderas

In Valderas, the ground is characterised mainly by the presence of compact gravel and sand, which occupy approximately 60% of the surface, followed by sandstones, conglomerates and flysch. These materials exhibit good bearing-capacity conditions, which favours shallow foundations, although it is essential to identify local variability and any eventual contact with lenses of fine sands and silts, which may affect the uniformity of settlement. The generally low permeability of these formations reduces the risks associated with infiltration, although there is the possibility of finding deep aquifers, which calls for caution in works of a certain scale.

As regards seismic risk, Valderas shows high seismic activity (200 events in 30 years, Mmax 4.7), which requires considering specific seismic-resistance standards in structural design. In addition, although the karst phenomenon does not constitute a limiting factor in this municipality, the local presence of expansive clays in certain areas constitutes an important geotechnical risk, particularly under certain climatic conditions. Therefore, the most critical aspect in the geotechnical study in Valderas will be the detailed investigation of the potential expansion of these soils, together with an appropriate analysis of local seismic hazard.