Estudio geotécnico in Sant Feliu de Guíxols

In Sant Feliu de Guíxols, granitoid, gneiss and other igneous rock substrates predominate, representing the majority of the surface ground. These materials, generally with high strength, provide a notable bearing capacity, allowing the use of shallow (direct) foundations if the topography and excavation conditions permit it. The fine sands, silts and occasional gravels may require specific checks to rule out loose materials or changes in stratigraphy, but overall the site presents favourable conditions for construction.

Seismicity in the municipality is very low, with only 4 events over thirty years and a maximum magnitude of 3.1, which means that the seismic influence on structural design is minimal. The non-clayey substrate rules out expansivity-related problems, and there are also no signs of karstification in the area. In summary, the main geotechnical consideration in Sant Feliu de Guíxols lies in correctly characterising the rock level for the foundation, ensuring uniform support on the dominant bedrock mass.