Estudio geotécnico in Gurrea de Gállego

In Gurrea de Gállego, the subsoil is dominated by formations of limestones, dolomites and marbles, which guarantees adequate bearing capacity for most foundation projects. Alongside these hard, compact materials, there are layers of fine sands, silts and sandstones which, although common, may show some variability in strength depending on their degree of compaction. It is important to pay attention to the possible presence of gypsum, anhydrite and salts, which entail a risk of dissolution and may affect foundation stability if they are not properly identified and managed.

The area shows high seismicity, with more than 200 events over 30 years and a maximum magnitude of 4,8; therefore, the seismic analysis must form part of the structural calculation. In addition, the karstic nature of some strata of limestones and dolomites makes it necessary to verify the existence of cavities or deep dissolutions before carrying out the foundation. The non-clayey substrate makes it possible to rule out problems associated with expansive soils, with the main controlling factor being the combination of possible karstification and seismic risk.