Estudio geotécnico in Sant Antoni de Vilamajor

In Sant Antoni de Vilamajor, compact gravels and sands predominate, accompanied to a lesser extent by sandstones, conglomerates and flysch. These formations exhibit good bearing capacity conditions and provide adequate support levels for shallow foundations. However, the presence of near-surface aquifers located in permeable strips within matrices that are mostly impermeable requires that the possible saturation of the subsoil and its influence on settlement are properly assessed.

Seismic activity in the area is very low, with only two recorded events over 30 years and a maximum magnitude of 2.8, which implies a low level of constraint for structural design. The risk of expansivity is linked to the subordinate presence of expansive clays, although their influence is limited by their low proportion and the local climatic configuration. The main factor to be controlled in the geotechnical study will be the local variations in the groundwater table and the detailed characterisation of the granular units.