Estudio geotécnico in Sant Quirze del Vallès

In Sant Quirze del Vallès, sedimentary strata of sandstone, conglomerates and flysch predominate; these materials provide adequate bearing capacity for most shallow foundation solutions, thanks to their lithified and compact nature. Compact gravels and sands, although less frequent, also represent favourable media for transmitting loads, allowing conventional foundations. The presence of extensive, highly permeable aquifers requires consideration of the possible rise in groundwater level during the foundation phase and the durability of buried structures, as well as the potential need for groundwater control procedures on site.

Seismicity in the area is very low, with only 1 event in 30 years and a maximum magnitude of 1.7; therefore, this factor does not represent a relevant requirement in structural design criteria. The risk of expansiveness is low, since expansive clays appear subordinately or in climatic contexts that do not favour their activity, reducing their impact on the stability of the foundations. In conclusion, the main geotechnical constraint in Sant Quirze del Vallès is the management of groundwater linked to the high permeability of the materials, with the bearing capacity of the strata generally being favourable.