Geotechnical study in Belorado

In Belorado, the subsoil is dominated primarily by the presence of gypsum, anhydrite and salts, accompanied by significant proportions of sandstone, conglomerates and flysch. This mineralogical setting poses particular challenges with regard to the ground’s bearing capacity, since soils formed by gypsum, anhydrite and salts present risks associated with dissolution and subsidence, especially in contact with flowing water. The sandstone and conglomeratic formations can provide a degree of stable support, but the heterogeneous distribution of the materials requires careful assessment to determine the optimal foundation zones. Special caution is recommended when selecting the support level and the type of foundation, prioritising specific geotechnical studies before any works begin.

Seismicity in the area is classified as notable, with 133 events recorded over 30 years and a maximum magnitude of 3.7, which although moderate should be taken into account in the analysis of the stability and safety of the designed structures. The presence of karstification is a relevant constraint, as it is necessary to thoroughly verify the possible karst processes before any intervention, given the frequent occurrence of cavities associated with gypsum and salts. The non-clayey nature of the substrate rules out expansivity risks. The main geotechnical constraint in this municipality is the combination of risks linked to dissolution and potential karstification; these are critical factors that drive the need for a detailed geotechnical study for the safe execution of any foundation.