Estudio geotécnico in Mollet del Vallès

In Mollet del Vallès, sandstones, conglomerates and flysch formations predominate, accompanied by compact gravels and sands, and in smaller proportions, fine sands and silts. This substratum provides good bearing capacity in general terms, allowing shallow foundation solutions in most cases. The presence of extensive aquifers and highly permeable soils implies paying special attention to the groundwater level and protection against leaching or washouts during dewatering or excavation phases, particularly in areas of fine sands and silts.

Seismic activity in Mollet del Vallès is considered very low, with only 5 events over 30 years and a low maximum magnitude (Mmax 1.6), so it does not represent a relevant constraint for structural design. As it is a non-clayey substratum, the risk of expansivity is ruled out. In summary, the main geotechnical consideration in this municipality lies in appropriate management of groundwater due to the high permeability of the materials.