Estudio geotécnico in Marín

In the municipality of Marín, the dominant geological substrate is formed by sandstones, conglomerates and flysch, which account for around 70% of the surface and are occasionally accompanied by slates and schists. These lithological formations generally exhibit low permeability, although they may contain shallow aquifers in certain areas. The bearing capacity of these soils is usually favourable for most foundations, facilitating the selection of direct solutions, except in areas near water bodies or where slates and schists occur at the surface, where more detailed studies may be required to optimise the foundation design.

Seismic activity in Marín is very low, with only about 4 events in the last 30 years and a maximum recorded magnitude (Mmax) of 2.8, which implies a minimal impact on the seismic design of buildings. In addition, the substrate does not present any risk of expansivity, ruling out problems associated with swelling or shrinkage of clays. The main geotechnical constraint lies in verifying the lithological heterogeneity, particularly in the transition to areas of slates or near water bodies; the impermeability and drainage capacity should therefore be considered to prevent hydrogeological problems in the foundation.