Estudio geotécnico in Menasalbas

In Menasalbas, the substrate is predominantly granite, gneiss and igneous rocks, characterised by high strength and low deformability, which is advantageous for the bearing capacity of the ground and facilitates the adoption of shallow, direct foundations in most cases. As a secondary component, there are slates, schists and, in smaller proportions, sandstones and conglomerates. Fine sands and silts are very rare and will only rarely represent a conditioning factor, except in the presence of localised levels. The general impermeability of these materials limits flows of groundwater, although small superficial aquifers may occur.

Seismic activity in Menasalbas is very low, with barely a significant event every 30 years and a maximum magnitude of 1.5, so this factor has little influence on structural design. Risks of expansivity in the substrate are not detected, since clayey materials do not predominate. However, the possible presence of karstification is especially relevant; before proceeding with any foundation, the absence of cavities or processes associated with karst must be verified, as these could lead to localised instability or subsidence. This is the main factor to be assessed in the municipality’s geotechnical study.