Estudio geotécnico in Santa Cruz del Retamar

In Santa Cruz del Retamar, sandstones, conglomerates and flysch predominate, followed by shales, schists and, in smaller proportions, granite, gneiss and limestones. These materials generally provide favourable bearing capacity for shallow foundations, although the variability in lithology and the occasional presence of metamorphic and igneous rocks may require specific studies of compatibility and excavability. Given the low permeability of most of these formations, there may be shallow groundwater bodies, but they do not usually pose a direct challenge for selecting the foundation system, except in localised areas.

Seismicity in the area is high, with more than 200 recorded events over 30 years and a maximum magnitude of 5.1, which implies the need to incorporate seismic criteria into structural and foundation design. The subsoil is scarcely clayey, which rules out concerns associated with potential expansivity problems. There are no karstification risks that need to be analysed in advance. The main geotechnical limiting factor in Santa Cruz del Retamar is the consideration of seismic action on structures and the differential behaviour of the different types of subsoil.