Estudio geotécnico in Roales

In Roales, sandstones, conglomerates and flysch predominate, together with a significant presence of limestones, dolomites and marbles, providing a fundamentally rock-based substratum with good bearing capacities. Compact gravel and sand, although less frequent, can provide direct foundations, provided that their degree of compaction is verified. This type of sediment allows structures with shallow or semi-deep foundations, facilitating construction due to the stability and low deformability of the predominant materials. The generally low permeability of the formations is a favourable factor for long-term stability, although it is recommended to assess the presence of deep aquifers in the context of the project.

Seismic activity in Roales is significant, with a record of 200 events over the last 30 years and an Mmax value of 4.5, so seismicity must be taken into account as a priority in structural design and in the calculation of foundations. There is no risk associated with karst or any problems of expansivity, since the non-clayey substratum removes concerns regarding volumetric swelling. The most determining aspect in local geotechnical conditions will be the correct incorporation of seismicity into the project and the detailed characterisation of the substrate’s strength parameters to ensure structural safety.