Estudio geotécnico in Premià de Mar

In Premià de Mar, the subsoil is composed mainly of compact gravels and sands, which are dominant, followed by fine sands and silts. These materials offer good conditions in terms of bearing capacity, which favours the selection of shallow, direct foundations in most cases. However, the occasional presence of silts may require additional checks to avoid localised differential settlement, especially in areas where moisture levels may vary.

Seismicity in the municipality is very low, with only 5 events over 30 years and a very low maximum magnitude (Mmax 1.6), so seismic risk does not influence structural design. Since the substratum is not clayey, the presence of expansive soils and the risks associated with expansivity are ruled out. There are no signs of karst processes in the area. The main conditioning factor for the geotechnical study in Premià de Mar lies in the spot-check verification of the continuity and quality of the granular strata in areas locally altered.