Estudio geotécnico in Benamargosa

In Benamargosa, the predominant geological substrate is mainly composed of slates and schists, accounting for 84.74% of the soils, followed to a lesser extent by fine sands and silts. These materials, especially the slates and schists, show low permeability and usually provide a medium bearing capacity, suitable for conventional foundations provided that their correct compaction is verified and the level of weathering reached. Fine sands and silts appear occasionally and must be analysed on a case-by-case basis to ensure that there are no differential settlement problems.

The recorded seismicity in Benamargosa is very low, with barely 1 event in 30 years and a maximum magnitude of 2.5, which does not constitute a relevant constraint in structural design. In addition, the non-clayey substrate eliminates the risk of expansivity, which simplifies the selection of the foundation type. In this municipality, the main geotechnical consideration lies in the ground’s impermeability, which may host shallow aquifers; special attention should therefore be paid to drainage aspects and to possible accumulations of groundwater beneath the building.