Geotechnical study in Huércal de Almería

In Huércal de Almería, solid substrates predominate, formed by limestones, dolomites and marbles, which constitute more than 60% of the local soils. These materials generally offer a high bearing capacity and are suitable for shallow foundations, although in certain areas they may alternate with layers of fine sands and silts, which could require specific assessment of their compactness and uniformity. The occasional presence of masses of water indicates the development of aquifers with moderate permeability and productivity, which may affect the depth and type of foundation to select.

Seismicity in the municipality is very low, with only one event recorded over 30 years and a maximum magnitude of 1.7, so its consideration in structural design calculations is secondary. It is important to emphasise that karstification associated with limestone and dolomitic formations requires detailed investigation prior to the execution of foundations in order to rule out voids or sub-surface instabilities. Additionally, the non-clayey substrate eliminates the risk of expansivity; the main constraint is verifying karst development and any possible cavities that could affect the integrity of the structures.