Estudio geotécnico in Pulianas

In the municipality of Pulianas, geotechnical studies reveal a dominant presence of fine sands and silts, as well as significant areas of limestones, dolomites and marbles. These materials usually provide a medium to high bearing capacity for foundations, allowing the use of shallow or semi-deep solutions, except in locations with muds or peats of deltaic origin where settlement could be significant and should be avoided as a founding level. White/soft expansive clays are occasional, so the main subsoil does not impose a widespread risk, whereas permeability is low and may be associated with the presence of aquifers at depth.

Seismicity in Pulianas is considered high, with around 200 recorded events over 30 years, although the maximum magnitude (Mmax 3.8) typically does not exceed critical values. In this area there is no risk of karst processes and a risk of expansivity is ruled out due to the predominance of a non-clayey subsoil. The fundamental constraint for foundations lies in correctly identifying zones with muds or peats and in carefully assessing the influence of seismicity on the structural design.