Estudio geotécnico in Vilassar de Dalt

In Vilassar de Dalt, a substratum formed by granite, gneiss and igneous rocks predominates, accounting for 87.5% of the soils, with occasional presence of gravels and compact sands. These materials are characterised by a high bearing capacity and low deformability, which favours the choice of shallow direct foundations or continuous strip footings, generally limiting the need for deep foundations. Their permeability is low, although there may be contributions from superficial aquifers; therefore, it will be important to study possible water movements in the foundation area.

Seismicity is very low, with only 5 events in the last 30 years and a maximum magnitude of 1.6, which rules out the need to consider additional requirements for seismic actions in structural design. The absence of clays in the substratum eliminates the risk of expansivity, and no karstic phenomena are observed either. Thus, the main technical consideration in the geotechnical studies of Vilassar de Dalt will focus on the characterisation of the rock mass and the low permeability of the ground.