Estudio geotécnico in Santa Cristina d'Aro

In Santa Cristina d'Aro, the dominant subsoil primarily comprises granite, gneiss and other igneous rocks, with an occasional presence of gravel and compacted sand. These materials give the ground a high bearing capacity, facilitating the selection of direct foundation solutions in most cases, provided that the homogeneity of the altered horizons is confirmed. The generally low permeability of these formations limits the occurrence of underground water pockets, although it is possible to find shallow aquifers in elevated points or in altered areas.

From the standpoint of seismicity, activity in the area is considered moderate, with 14 events over 30 years and a maximum recorded magnitude of 3.1, which implies a low seismic risk. The non-clayey substrate rules out ground expansion risks, simplifying the design of the foundations. The main geotechnical constraint in Santa Cristina d'Aro lies in the precise characterisation of the igneous rocks and the identification of possible local aquifers in altered materials.