Estudio geotécnico in El Bruc

In the municipality of El Bruc, limestone, dolomites and marbles predominate as geological substrate. These carbonate nature materials generally provide high strength and good bearing capacity for shallow (direct) foundations. However, their fracturing and the possibility of superficial aquifers imply the need for a detailed geotechnical study to identify ground homogeneity and avoid problems related to differential settlement. The overall low permeability of these formations, except where fractures increase water circulation, supports foundation stability, although the continuity and condition of these materials must be investigated carefully.

The level of seismicity recorded in El Bruc is very low, with only 5 events over 30 years and a maximum magnitude of 1,6, which represents an insignificant seismic risk for structural design. However, as it is an environment of an eminently carbonate nature, there is a risk of karstification. For this reason, the possible existence of cavities or voids of karstic origin must be verified before executing any foundation. Although expansive clays do not predominate, it is advisable to analyse their localised location, especially in specific areas where they may locally influence expansivity. The main constraint in the area is therefore the prior check for karst-related processes that could affect ground behaviour.