Estudio geotécnico in Jimena de la Frontera

In Jimena de la Frontera, hard materials such as sandstones, conglomerates and flysch predominate, followed in smaller proportions by carbonate rocks such as limestones, dolomites and marbles. These soils, for the most part difficult to deform and with low permeability, provide a good bearing capacity for shallow or semi-deep foundations. The occasional presence of fine sands and silts, together with zones very locally affected by slates, implies that the lateral continuity of the substrate must be analysed carefully in order to avoid differential settlements. It is essential to verify the homogeneity of the ground and to avoid poorly competent layers during the geotechnical study campaigns.

The municipality shows moderate seismicity (43 events over 30 years) with a maximum magnitude of 4.5, which means that seismic criteria must be incorporated into the calculation and structural design of new buildings. Since part of the ground is made up of limestones and dolomites, it is essential to rule out the presence of karst features or underground cavities before carrying out any foundation, as they can pose a significant risk of collapse or unforeseen settlements. The non-clayey substrate rules out expansive soil problems, with the main limiting factor being the detailed characterisation and the verification of the risk of karst activity.