Estudio geotécnico in Vall d'Alba

In Vall d'Alba, the geotechnical subsoil is dominated by limestones, dolomites and marbles, carbonated materials that represent more than 60% of the ground present, in combination with deposits of gravel and compact sands. This type of soil is characterised by offering a high bearing capacity and facilitates solutions for direct foundations, particularly when they are founded on competent materials. However, the occasional presence of fine sands, silts and hard clays must be analysed in order to rule out areas of lower strength or heterogeneity in the stratigraphic profile.

Seismicity in Vall d'Alba is very low, with only 4 events recorded over 30 years and a maximum magnitude of 2.5, so the seismic design requirements in structural design are usually minimal. Due to the predominance of carbonated materials, the existence of karst processes is a fundamental aspect that must be verified before proposing any foundation solution, as they can affect ground stability. The non-clayey subsoil rules out risks associated with expansivity, leaving as the main limiting factor the identification and prevention of karst cavities or dissolutions.