Geotechnical study in Nave

In Navata, the dominant substrate is formed by sandstones, conglomerates and flysch, which provides a solid and competent basis for shallow and semi-deep foundations. These materials typically exhibit good bearing capacity and low deformability, favouring controlled settlement of the structures. In specific areas, fine sands, silts and, to a lesser extent, gravels may be found; therefore, it is advisable to assess local compactness and density if foundations are intended to be placed directly on them, although in most of the municipality stability is high.

Seismicity in Navata is very low, with hardly any events over 30 years and a maximum recorded magnitude of 3.7, resulting in a low seismic risk that usually does not influence structural design. The expansivity analysis confirms the absence of problematic clayey soils, ruling out swelling or shrinkage risks associated with expansive clays. The main geotechnical factor remains the local heterogeneity of the granular substrate, particularly in areas where interbedded layers of sands and silts of lower compactness occur.