Geotechnical study in Montgat

In Montgat, compact gravels and sands predominate, with an occasional presence of calcareous formations and igneous rocks such as granite and gneiss. This composition favours a high bearing capacity and facilitates the adoption of direct foundation solutions, although the overall low permeability suggests the possible presence of localised shallow aquifers that may require hydrogeological monitoring during the excavation phase.

Seismicity in Montgat is very low, with only 2 recorded events over 30 years and a maximum magnitude (Mmax) of 1.7, which implies a negligible seismic risk for buildings. The absence of clay-bearing strata removes concerns about expansivity, ruling out pathologies associated with soil swelling. The main limiting factor in this municipality is related to the management of groundwater in formations with local permeability that is relevant.