Estudio geotécnico in Esquivias

In Esquivias, the subsoil is dominated by hard rock formations such as limestones, dolomites and marbles, which generally confers good bearing capacity to shallow foundations. Outcrops of sandstones, conglomerates and flysch also occur, together with occasional areas of gypsum, anhydrite and salts; the latter entail a potential risk of dissolution due to the action of groundwater. The presence of compacted gravels and sands is rare, but when they are encountered they can provide acceptable support levels. The existence of moderate aquifers necessitates careful assessment of permeability and any potential impact on the foundation design.

Seismicity in Esquivias is high, with more than 200 recorded events in the last 30 years and a maximum magnitude of 5.1; therefore, this risk must be taken into account in the structural design of any type of building. The area is also characterised by the possible presence of karst in the sub-stratum, which requires verification prior to carrying out foundations in order to avoid unexpected settlement or collapses. It is important to emphasise the additional risk arising from the occurrence of predominantly expansive clays, which can cause significant volumetric movements and must be handled with particular caution in the design of structural support. The main constraint for the geotechnical study in Esquivias will therefore be the identification and proper treatment of expansive soils, the presence of karst and seismicity.