Estudio geotécnico in Cards

In the municipality of Cartes, the dominant subsoil is composed of sandstones, conglomerates and flysch, reaching a very significant presence in the area. This type of soil is characterised by a normally high bearing capacity and stable behaviour, which makes conventional shallow (direct) footings feasible in most cases. However, the occasional presence of fine sands and silts can locally reduce strength and increase compressibility, so it is essential to carry out specific boreholes on the plot in order to define the most appropriate support level and type.

The seismicity in Cartes can be classified as notable, with 145 events in the last three decades, which requires special attention to seismic action in the structural design of buildings. In addition, although limestones and dolomites appear in a minor proportion, their presence means it is necessary to rule out and verify the existence of karstification prior to foundation works, as this can generate instabilities and voids at depth. At the same time, the non-clayey subsoil eliminates the risk of expansivity, so the key constraint lies in checking for possible karst cavities and in considering seismic effects.