Estudio geotécnico in Seseña

In Seseña, the subsoil is characterised mainly by the presence of masses of water and significant formations of limestones, dolomites and marbles. The carbonate materials provide a good bearing capacity, which facilitates the design of conventional foundations; however, the occasional occurrence of gypsum, anhydrite and salts introduces potential dissolution risks that must be studied in detail. Areas of compact gravels and sands offer additional solutions for supporting structures, while shales and schists, although present, do not dominate the geotechnical setting. The overall high permeability of the aquifers determines the control of groundwater during the execution and service of foundations.

Seismic activity in Seseña is very low, with a historic maximum of low magnitude, so seismicity does not represent a relevant constraint in structural design. It is essential to verify the presence of karstification in the carbonate units before founding, due to the possibility of cavities that would affect ground stability. The local presence of expansive clays poses a structural risk in certain areas, with possible detrimental volumetric deformations, and therefore a precise characterisation of these soils is recommended. The most relevant limiting factor in the municipality is the combination of karst processes and the point expansion of clays, which require particular attention in each geotechnical study.