Estudio geotécnico in Montcada i Reixac

In Montcada i Reixac, fine sands and silts predominate, together with a significant presence of slates, schists, sandstones and flysch. These materials provide bearing capacities that vary according to their degree of compaction and weathering, while granite or gneiss levels, although less frequent, can nonetheless provide a very good foundation for shallow footings when encountered. The low permeability of these soils limits the flow of groundwater, although discontinuous superficial aquifers may occur. This lithological mosaic requires careful geotechnical characterisation in order to select the most suitable foundation system.

As regards geotechnical risks, seismicity in the area is very low, with only one recorded event in 30 years and a maximum magnitude of 2.5, which implies a negligible structural impact. The subsoil is composed predominantly of non-clayey materials, thereby ruling out the risk of expansivity. In short, the fundamental factor in Montcada i Reixac is the heterogeneity of the materials, so detailed geotechnical investigation is essential to avoid problems associated with differential settlement.