Estudio geotécnico in Portas

In Portas, sandstone, conglomerates and flysch predominate as the underlying ground materials, accompanied by areas of fine sands and silts. These formations generally show good bearing capacity, enabling direct foundation solutions in most projects. However, the low permeability detected in the subsoil suggests that surface water may become impounded, so drainage must be studied carefully before carrying out any foundations.

The municipality’s seismicity, with 47 events over the last 30 years and a maximum magnitude of 2.9, is classified as moderate, although it does not represent a major constraint for design. There are no signs of karst or of soils with expansive-risk, since the non-clayey subsoil rules out the possibility of problems associated with expansion. In summary, the main aspect to control will be the management of surface drainage due to the low permeability of the predominant soils.