Estudio geotécnico in Cabezón de la Sal

In Cabezón de la Sal, the subsoil is dominated mainly by sandstones, conglomerates and flysch; these materials account for more than 75% of the ground and are occasionally supplemented by levels of limestones, dolomites and marbles. The characteristics of these materials translate into a high level of compaction and acceptable bearing capacity for shallow foundations in most cases. However, the occasional presence of fine sands and silts, although rare, may require additional precautions, particularly in relation to the potential for consolidation and drainage.

The municipality records a notable level of seismicity, with 145 events over the last three decades and a maximum magnitude of 4, indicating the need to take this factor into account in the structural design approach. Given the percentage of limestones and dolomites, the risk of karstification is present and must be specifically verified before carrying out any foundation, to avoid problems of subsidence or localised collapses. The absence of an clayey substratum eliminates the risk of expansiveness, so the main geotechnical constraint is undoubtedly the possible existence of karstic cavities beneath the area of intervention.