Estudio geotécnico in Briviesca

In Briviesca, the dominant soils are gypsum, anhydrite and salts, together with fine sands, silts and the occasional presence of limestones and dolomites. These lithologies exhibit variable bearing capacity, where the foundations must be adapted by considering the frequent risk of dissolution of the gypsum and salts, as well as the generally low permeability of the strata. Compact sands and gravels allow reliable foundations in some areas, but a detailed analysis is recommended for each site, avoiding differential settlements linked to soluble materials.

The region is characterised by very low seismicity, with few events and a low maximum magnitude, so seismic action does not condition structural design. However, the existence of a karstic medium makes it necessary to carry out thorough checks to identify any possible cavities or subsidence before founding. Since the underlying substrate is not clayey, the risk of expansivity is ruled out; the main constraint for geotechnical design in Briviesca is therefore possible instability associated with karst processes and the presence of soluble materials.