Estudio geotécnico in Fontanar

In the municipality of Fontanar, the near-surface materials are dominated by water masses and sedimentary rocks such as sandstones, conglomerates and flysch, accompanied in smaller proportions by limestones and shales. The soils generally have high permeability, associated with extensive and productive aquifers, which has a positive effect on drainage and may enhance bearing capacity, particularly over sandstones and conglomerates. However, given the significant presence of detrital materials and areas with possible stratification, it is essential to carry out a detailed geotechnical study to determine the depth and type of foundation most suitable, based on lateral facies changes.

With regard to the seismic aspect, Fontanar shows significant activity, with 200 events over 30 years and a maximum magnitude of 4.6. This level of seismicity must be incorporated into the sizing and structural design of any foundation. Although expansive clays only occur subordinately and in specific areas, their localised presence must be assessed in the affected zones. The main constraint for building in Fontanar is the interaction between relatively high seismicity and the lithological heterogeneity of the soils; both factors require particular attention during the design and construction phases of the works.