Estudio geotécnico in Corgo, O

In the municipality of O Corgo, the subsoil is characterised mainly by a high presence of groundwater masses and a significant proportion of fine sands and silts. This type of alluvial sediment, together with the dominant low permeability of the ground, can cause drainage-related problems and differential settlements. The bearing capacity of these soils is variable, so a detailed analysis is required to determine the suitability of each area for structural loading and to correctly define the recommended embedment depth and foundation type.

From the seismic point of view, O Corgo lies in an area of high seismic activity, with more than 150 events in the last 30 years and a maximum recorded magnitude of M5, which requires a preventive approach in geotechnical design, incorporating specific criteria for seismic action. Since the bedrock is not clayey, the risk of expansivity is ruled out as a relevant conditioning factor. The main aspect to consider in local geotechnical studies is therefore ground stability with respect to seismicity and behaviour under loads on fine soils with a possible presence of water.