Estudio geotécnico in Víznar

In the municipality of Víznar, the subsoil is predominantly formed by slates and schists, low-permeability materials but with good mechanical stability for the foundations, provided that homogeneity and the degree of alteration are verified. Fine sands and silts are also frequently found; these may reduce bearing capacity and require deepening or reinforcement of the foundations, as well as a significant presence of limestones, dolomites and marbles, whose mechanical parameters are usually favourable. It is important to avoid founding on muds and deltaic peats, which occur occasionally, due to their low bearing capacity and high compressibility.

Seismicity in the area is very low, with only one recorded event in 30 years and a maximum recorded magnitude of 1.5, which rules out the need to consider seismic requirements in structural design. Due to the presence of carbonate materials such as limestones, dolomites and marbles, the possible existence of karstic phenomena must be checked before building to avoid stability problems. The non-clayey subsoil eliminates the risk of expansivity, with confirmation of the karst being the main determining factor for the geotechnical study in Víznar.