Estudio geotécnico in Álora

In Álora, soils comprising sandstones, conglomerates and flysch predominate, followed by slates and schists, which characterises a generally competent ground from the geotechnical point of view and provides an adequate bearing capacity for most shallow foundations. The occasional presence of limestones, dolomites and marbles implies that areas with greater stiffness may be found, although there is also potential for cavities associated with karst processes. Compact gravels and sands are infrequent, which limits the existence of granular layers suitable for deep foundation, whereas levels of fine sands and silts have little representation and, therefore, minimal overall impact.

The municipality experiences moderate seismicity, with 42 events over 30 years and a maximum magnitude of 3.9, which does not represent a significant seismic hazard for the usual structural design, although it should be verified in specific projects. The possibility of karstification, due to the presence of limestones, requires a prior and thorough assessment before carrying out foundations, given the risk of voids and localised subsidence. The non-clayey substratum rules out issues related to expansiveness, making control of the karst phenomenon the fundamental geotechnical constraint in Álora.