Geotechnical study in Benidorm

The subsurface of Benidorm is dominated mainly by limestones, dolomites and marbles, which constitute approximately 50% of the area. These materials, mostly in a compact state, provide a high bearing capacity and facilitate stable foundations, although the specific characteristics of each formation must be assessed. The presence of fine sands, silts, gravels and compact sands in smaller proportions may influence the stability of the supports, requiring detailed analyses to optimise the foundation design.

The area shows very low seismicity, with an Mmax value of 1.5 and fewer than 10 events in the last 30 years, so the associated seismic risk is minimal. However, the existence of karst formation in the area requires thorough verification before foundation works to avoid problems resulting from cavities. In addition, the bedrock is not clayey, ruling out expansion-related risks, but the possible presence of impermeable formations that affect water management and structural stability must be taken into account.