Geotechnical study in Benamaurel

In Benamaurel, the geotechnical subsoil is dominated by the presence of gypsum, anhydrite and salts, together with carbonate formations such as limestones, dolomites and marbles. These materials usually exhibit variable bearing capacity, requiring a detailed analysis for selecting the most appropriate type of foundation. Localised areas of compacted gravels can provide good levels of support, while the presence of soluble materials implies a significant risk of dissolution, which can affect both ground stability and the durability of the foundations.

From a tectonic standpoint, Benamaurel shows very low seismicity, with a maximum magnitude Mmax 4.4 and only 3 events over 30 years, which limits the impact of seismic design requirements on structural design. However, the karstified nature of the area, due to the gypsum and limestones, requires an exhaustive verification of the possible development of cavities or voids before any foundation works are carried out. The non-clayey substrate rules out the risk of expansivity, with karst phenomena and the dissolution of salts being the main factors to consider in the planning and execution of works.