Estudio geotécnico in Arenys de Mar

In Arenys de Mar, the geotechnical subsoil is dominated by granitic materials, gneisses and other igneous rocks, representing close to 70% of the municipality. These rock types are characterised by providing a high bearing capacity and minimal compressibility, which makes it easier to select solutions for shallow foundations. Areas where fine sands and silts crop out, although less frequent, may require additional assessment of the compactness and the possible risk of differential settlements, depending on the thickness of these layers.

Seismicity in Arenys de Mar is classified as very low, with only five recorded events over 30 years and a maximum magnitude (Mmax) of 3; therefore, the influence of seismic movements on structural design is practically negligible. The non-clayey subsoil rules out any risk of expansivity, and there are also no impacts from karst processes. In conclusion, the main constraint for the geotechnical study in Arenys de Mar is the appropriate characterisation of sectors with silts or sands, since the rock substratum predominates and ensures favourable conditions for foundation design.