Estudio geotécnico in Train

In Entrena, the predominant substrate corresponds to sandstones, conglomerates and flysch, lithological formations that offer excellent bearing capacity thanks to their compactness and low deformability. Complementarily, it is possible to find compacted gravel and sand in significant percentages, which further enhances ground stability for shallow foundations. These characteristics enable efficient structural projections, although it is essential to verify the existence of possible aquifer levels at some depth due to the presence of low-permeability formations with the capacity to store water.

The seismic activity recorded in Entrena, with around 200 events over 30 years, corresponds to high seismicity in the area, although the maximum magnitude value (Mmax 4) remains moderate. As no clayey substrates have been identified, the risk of expansivity for this municipality is ruled out. The locality’s technical conditions require that the main factor to be considered be the high level of seismicity, making it indispensable for any structural design to include specific measures against seismic movements.