Geotechnical study in Moguer

In the municipality of Moguer, the most abundant materials are limestones, dolomites and marbles, followed by sandstones, conglomerates and flysch. These formations exhibit good bearing capacities, especially the carbonate rocks, which favours the selection of direct or shallow foundations. Fine sands and silts occur only occasionally and are less recommended as a support level due to their lower stability and greater compressibility. The overall permeability is low, although local areas of shallow aquifers may exist associated with certain materials.

Seismicity in Moguer is very low, with only 3 events over 30 years and a maximum magnitude of 2.1, so seismic requirements do not significantly affect structural design. There is no karst development in the subsoil and no presence of clays with dominant expansive properties, although zones where dispersed clays may occur within non-clayey matrices should be monitored to prevent possible problems of localised expansivity. The main conditioning factor in Moguer is the appropriate identification of the point-specific nature of the materials to ensure safe support for foundations.