Estudio geotécnico in Alfafar

In Alfafar, white and soft expansive clays predominate, accompanied by compact gravels and sands, while part of the municipality is influenced by water bodies. The presence of gravels and sands provides favourable options for shallow foundations, thanks to their better bearing capacity and drainage, but the areas affected by soft clays require special attention due to their lower strength and higher compressibility. In addition, the existence of extensive and highly productive aquifers implies the need to carefully control drawdowns in the water table and the presence of water during excavations and the installation of foundations.

The seismicity recorded in Alfafar is very low, with a maximum magnitude of 3.1, so the seismic risk for buildings is low and does not significantly condition structural design. As regards expansivity, the subordinate occurrence of expansive clays or their siting in climatic zones without water deficit mitigates the usual risk, although it remains advisable to assess the local potential for swelling, mainly in projects with shallow excavations or shallow foundations. In this way, the main focus should be on soil variability and on the presence of elevated groundwater levels.