Estudio geotécnico in La Vall de Boí

In the municipality of La Vall de Boí, overconsolidated clays and marls predominate, characterised by their hardness, together with the occasional presence of slates, schists, and some layers of fine sands and silts. This type of ground generally provides good bearing capacity owing to its compactness and consolidation, which in many cases makes it possible to propose shallow foundation solutions. However, areas with finer materials may require local assessment to prevent differential settlement.

Seismic activity in La Vall de Boí can be considered moderate, with 21 recorded events over the last 30 years and a maximum magnitude (Mmax) of 3, which does not pose any significant restrictions for structural design. Expansivity risks are not considered, as the predominant substrate is not clayey, and the absence of karst development eliminates problems associated with subsidence. The main constraint for foundation design is the local variability in lithology and its compactness.