Estudio geotécnico in Sant Pere de Torelló

In Sant Pere de Torelló, the ground is dominated by sandstones, conglomerates and flysch, covering around 87.5% of the area. These lithologies provide generally favourable bearing capacity for shallow foundations, although local variations associated with the occasional presence of white expansive or soft clays should be considered, as they account for 12.5% of the substrate. The permeability of the formations is low, but there may be associated shallow aquifers, which makes it advisable to assess any possible fluctuations in the groundwater level before carrying out the foundations.

Seismic activity in the area is very low, with only one minor event recorded in the last 30 years and a maximum magnitude of 1.6, which does not represent a relevant structural constraint. However, the potential presence of karstic phenomena in the subsurface must be taken into account, as this requires prior verification before designing and carrying out any foundation. The risk of expansivity is ruled out due to the predominance of non-clayey soils, so the control of cavities and hydrogeological conditions will be the main aspect to analyse in the geotechnical study for this municipality.