Estudio geotécnico in Comillas

In Comillas, the substrate is dominated by limestones, dolomites and marbles, followed by sandstones, conglomerates and flysch, which generally provides good bearing capacity, suitable for different types of shallow and deep foundations. However, the occasional presence of gypsum, anhydrite and salts introduces an additional risk factor due to possible dissolution under favourable conditions, which must be considered in the geotechnical assessment. The low permeability of the predominant formations requires a detailed study of infiltration and the ground's behaviour under loads.

With significant seismicity (145 events in 30 years, maximum magnitude 4), this activity must be taken into account in structural design and sizing, especially for important buildings. Given the abundance of carbonate materials, the development of karst-related phenomena represents a critical constraint; it is essential to verify the existence of cavities or associated instabilities before defining foundation solutions. The non-clayey substrate rules out risks of expansivity, positioning the possible presence of karst and dissolution processes as the priority factors to control in any geotechnical study in Comillas.