Geotechnical study in Ardales

In Ardales, limestone, dolomites and marbles predominate as substrates, accompanied by a notable proportion of sandstones, conglomerates and flysch. These types of rock generally provide good bearing capacities for shallow foundations, although any potential zones of fine sands and silts must be taken into account, as they may exhibit poorer mechanical behaviour. It should be noted that permeability is low in most formations, which limits the migration of water and, overall, favours the stability of surface foundations.

The recorded seismic activity in the locality is moderate in nature, with 33 events over 30 years and a maximum magnitude of 3.7, which calls for reasonable attention in structural design. It is essential to verify the presence of karst before carrying out any foundation work on limestones and dolomites, since the existence of cavities or dissolution processes may compromise stability. There are no significant risks of expansivity, as the substrate is not clayey. The main constraint in Ardales will be the possible presence of concealed karst features in the ground.