Estudio geotécnico in Navàs

In Navàs, the dominant subsoil is made up of sandstones, conglomerates and flysch; materials that generally provide good bearing capacity for building foundations, provided that the strata are compact and homogeneous. Complementarily, the occasional presence of compact gravels and sands makes it possible to establish adequate support levels, with in situ investigations being key to characterise the continuity and strength of these horizons. Permeability, which is low in general terms, contributes to greater stability at the foundation base, although shallow aquifers may appear in localised areas.

The seismicity in Navàs is very low, with only 4 recorded events over 30 years and a very low maximum magnitude (Mmax 2.1), so it does not constitute a relevant constraint for structural design. Since the subsoil is predominantly non-clayey, the risk of expansiveness is ruled out, providing a favourable environment for the construction of shallow or deep foundations depending on the project. The main conditioning factor will be the local variability of the flysch and the identification of possible levels of compact gravels or sands; these aspects must be verified by means of a geotechnical study tailored to each site.