Estudio geotécnico in Amer

In Amer, the dominant geotechnical subsoil is formed by sandstones, conglomerates and flysch—materials that usually provide adequate bearing capacity for conventional foundations if they are found in a compact or slightly weathered condition. Likewise, the presence of limestones, dolomites and marbles is common and may influence the stability of the support favourably; however, in these lithologies the possible existence of natural cavities must be checked. Compact gravel and sand soils, which are less common, also offer good conditions for shallow foundation, whereas the occasional occurrence of slates and igneous rocks may imply variability in the mechanical response and in excavation behaviour on site.

The seismicity in Amer is classified as moderate (20 events in 30 years, Mmax 3.5); therefore, although no exceptional measures are required, it is nevertheless advisable to consider seismic action in the structural design in accordance with the applicable regulations. There is also a karstified constraint associated with carbonate materials; accordingly, before carrying out any type of foundation, it is essential to verify, by means of the geotechnical study, the absence of underground cavities or dissolutions. The non-clayey subsoil rules out risks related to expansivity. The main factor to assess in Amer will be the possible presence of karst phenomena in areas of limestones and dolomites.