Geotechnical study in Puçol

In Puçol, soils of fine sands and silts predominate, followed by layers of compact gravels and sands, which favours a good bearing capacity for shallow foundation solutions, provided that consolidation is controlled in the more silty horizons. The occasional presence of limestones, dolomites and marbles may require specific depth checks, given their competent behaviour and the possibility of irregularities in the subsoil. The non-clayey subsoil reduces the risks of deformation and expansiveness, and the high permeability of the ground enables efficient drainage, although it is essential to control the groundwater table in foundation projects.

Seismicity in the municipality is moderate, with 27 events recorded in the last 30 years and a maximum magnitude of 3.4, so the seismic risk is low but not negligible. The existence of carbonate materials implies a possible karst activity; it is recommended to thoroughly verify the presence of cavities or dissolutions before proposing any foundation. The most relevant constraint in Puçol is the detailed assessment of karst phenomena, which can directly affect the design and safety of structures.