Estudio geotécnico in Vallfogona de Balaguer

In Vallfogona de Balaguer, a substrate composed of sandstones, conglomerates and flysch predominates, accompanied to a lesser extent by fine sands, silts and some gravels and compact sands. This lithological diversity generally provides good bearing capacity, suitable for different types of shallow foundation, provided that the continuity and compaction of the predominant horizons are verified. The formations detected are of low permeability, although they may contain localised shallow aquifers, an aspect to be considered in protecting the structure against possible rises in moisture levels.

Seismicity in the municipality is very low, with only three recorded events over three decades and a maximum magnitude of 2.5, so it does not constitute a significant constraint in structural design. There are no risks associated with karst processes or with the presence of expansive clays, since the non-clayey substrate rules out this type of problem. The main geotechnical factor will be the correct characterisation of the bearing stratum to ensure a stable foundation and prevent issues related to local variations in permeability or differential settlement.