Geotechnical study in Calaf

In Calaf, sandstones, conglomerates and flysch predominate, with an occasional presence of limestones, dolomites and marbles. These materials form a substrate that is for the most part competent from a geotechnical point of view, providing good bearing capacity for shallow foundations except in locally altered or fractured areas. The characteristics of very low permeability limit potential differential settlements, although the presence of shallow aquifers may require specific attention regarding the discharge of water in the foundation design.

Seismicity in the area is very low, with just 5 significant events over 30 years and a maximum magnitude of 1.6, so seismic actions do not constitute a relevant constraint in structural design. In addition, the non-clayey substrate eliminates the risk of volumetric expansion due to clays. Overall, the main technical aspect to be addressed in the geotechnical studies for Calaf will be the detailed characterisation of the compaction and lithological continuity of the load-bearing strata, as well as the eventual management of groundwater.