Estudio geotécnico in Lousame

In Lousame, formations of sandstones, conglomerates and flysch predominate, followed by slates and schists. These materials make up a subsoil with load-bearing capacities that are generally moderate, although the low permeability typical of these conditions may limit drainage and require specific construction solutions to prevent problems caused by the rise of the groundwater level in shallow foundations. The lithological characteristics present favour shallow (direct) foundations, provided that bearing is ensured on competent materials and local variations in the degree of fracturing are controlled.

The region has very low seismicity, with only 9 recorded events over 30 years and a maximum magnitude of 2.1, so seismic risk is not a relevant condition for structural design. Since the bedrock is not clayey, the risk of expansiveness is ruled out as the main conditioning factor. Consequently, the determining factor for the geotechnical study in Lousame will be the detailed assessment of the continuity and compaction of the strata, as well as the evaluation of behaviour in relation to groundwater.