Estudio geotécnico in Campillo de Arenas

In Campillo de Arenas, calcareous, dolomitic and marble substrates predominate, which characterise hard soils with generally high bearing capacity, allowing the efficient use of shallow foundations provided that intact, unaltered rock masses are located. The occasional presence of gypsum, anhydrite and salts implies an additional risk of dissolution, as well as some possible geomorphological instability in isolated areas. Sandstone and conglomeratic formations are less frequent and, together with very hard clayey soils, usually do not represent relevant constraints on bearing capacity. Low overall permeability limits the circulation of water, although discontinuous aquifers may occur in specific areas.

The municipality records moderate seismicity, with 20 events over 30 years and maximum magnitudes of 3.3; although it is not decisive for designing earthquake-resistant structures, it should be taken into account in the calculation stage. A key technical aspect is the potential existence of karstification in the carbonate formations, which makes it necessary to carefully review underground stability and morphology before any foundation work. The absence of an expansivity risk, due to the non-clayey substrate, leaves karst control and the possible dissolution of gypsum as the factors with the greatest geotechnical influence in this municipality.