Estudio geotécnico in Torrelaguna

In Torrelaguna, the dominant background materials are slates and schists, with a significant presence of water bodies and, to a lesser extent, granite, gneiss and some calcareous outcrops. These substrates, being generally low-permeability metamorphic and igneous rocks, provide good bearing capacity, although they may show some local heterogeneity in their mechanical behaviour. For foundations, it is usually recommended to adapt the solution to the site-specific ground competence, avoiding in all cases near-surface levels that are superficially saturated and ensuring adequate investigation into the possible presence of discontinuities or altered zones.

The seismicity recorded in the area is very low, with only five events in thirty years and a maximum magnitude of 3, which rules out the need to consider strict seismic assumptions in structural design. The non-clayey substrate eliminates the risk associated with expansive behaviour. However, the existence, although rare, of carbonated outcrops makes it essential to rule out the presence of karst, as this could affect the stability of the foundations. Thus, the main geotechnical constraint in Torrelaguna lies in the detailed verification of possible karst processes before defining any foundation solution.