Estudio geotécnico in Humilladero

In Humilladero, fine sands, silts, sandstones and conglomerates predominate; these materials provide a moderate and stable bearing capacity for the customary foundations of buildings. The secondary presence of compact gravels and sands is favourable in terms of strength, whereas clayey soils are relegated to a very low proportion, meaning they do not usually condition the foundation design from the standpoint of compressibility. Owing to their low permeability, these formations can occasionally hold superficial aquifers, which is an aspect to be taken into account to avoid adverse effects due to the water table.

Seismicity in Humilladero is very low, as reflected by the small number of registered events and the low maximum magnitude observed. However, the possible presence of carbonate rocks (limestones and dolomites) requires evaluating the existence of karst-type cavities before deciding on the type of foundation, since their presence can cause localised subsidence. The non-clayey substratum rules out the risk of expansiveness. Thus, the main geotechnical constraint in Humilladero is usually linked to verifying karst processes prior to any foundation.