Estudio geotécnico in Roa

In Roa, the dominant subsoil is mainly composed of sandstones, conglomerates and flysch, followed by frequent outcrops of limestones, dolomites and marbles. These lithologies favour good bearing capacity for building projects, and occasional compacted gravels and sands may also provide good conditions for direct foundation. However, the occasional presence of gypsum, anhydrite and salts introduces a potential risk of dissolution, particularly in areas with groundwater circulation, which must be assessed carefully in site investigations. The nature of the soils, together with the widespread presence of highly productive aquifers, provides high permeability that may require particular attention in the management of water during foundation execution.

Seismic activity in this municipality is very low, with just 4 events over 30 years and a low maximum magnitude (Mmax 1.7), so seismicity does not represent a relevant constraint for structural design. It is important to note that some of the calcareous and dolomitic ground may exhibit karst phenomena that should be investigated before carrying out the foundations, as the existence of voids could affect ground stability. The absence of expansive clays rules out problems associated with the expansiveness of the subsoil, consolidating karst potential as the main geotechnical constraint to consider in pre-works studies in Roa.