Estudio geotécnico in La Roda de Andalucía

In La Roda de Andalucía, substrates of sandstones, conglomerates and flysch predominate, accompanied by the secondary presence of fine sands, silts, as well as some outcrops of gravels, compact sands and, in lesser proportion, limestones, dolomites and marbles. This geological context provides good bearing capacity in most sites, except in specific areas where saturated fine materials or masses of water may be present, requiring special care when defining the foundation level. Widespread impermeability limits natural drainage; therefore, it is important to ensure proper evacuation of groundwater and to avoid alterations caused by water accumulations beneath the structures.

With regard to seismicity, the activity recorded in the area is moderate: 44 events in the last three decades and a maximum magnitude of 3.6, which implies that seismic effects on the foundation are limited and do not constitute the main conditioning factor. However, the occasional presence of limestones and dolomites introduces the possible development of karstification, an aspect that must be checked through a detailed geotechnical study before building, in order to rule out voids, cavities or other phenomena associated with dissolution. The non-clayey substratum rules out the risk of expansivity; therefore, the main parameter to control is the possible karstification in carbonate formations.