Estudio geotécnico in San Cristóbal de la Cuesta

The municipality of San Cristóbal de la Cuesta has a dominant substrate made up of sandstones, conglomerates and flysch, which occupy almost the whole of the surface area. These materials, which are compact in nature and generally competent in consistency, favour good bearing capacity for shallow or semi-deep foundations, although their low permeability makes it advisable to always check the possible groundwater level or the presence of groundwater, particularly in deep excavation projects. Compact gravels and sands are uncommon and, although they have good geotechnical characteristics, their limited representation restricts their practical relevance.

With regard to geotechnical conditions, seismicity in San Cristóbal de la Cuesta is very low, with only around 3 recorded events over 30 years and a maximum magnitude of 2.4, meaning it does not represent a significant concern in structural design. There is no evidence of karstic phenomena or any risk of expansiveness, since the substrate is not clayey. Thus, the main focus of the geotechnical study should be on characterising the rock substrate and checking for the possible presence of deep aquifers that could influence the behaviour of the foundations.