Estudio geotécnico in Canillas de Aceituno

In Canillas de Aceituno, the geotechnical substrate is dominated by slates and schists, fine-grained materials with competent behaviour for foundations, although with the presence of weakness planes that can affect bearing capacity depending on the orientation and the state of fracturing. To a lesser extent, sandstones and flysch are identified, with occasional occurrences of fine sands and silts; the latter should be considered due to their lower compaction. Generally, the low permeability limits the flow of water, which helps to keep the soil’s mechanical properties stable and facilitates conventional foundation solutions, although it will be necessary to verify local conditions in the presence of isolated heterogeneities.

The area exhibits moderate seismicity, with 15 recorded events over 30 years and a maximum magnitude of 4.3, a circumstance that justifies considering seismic actions in structural design. There is also a risk of karstification, which requires carrying out a thorough ground investigation to detect cavities or areas susceptible to subsidence before founding. The substrate is not clayey, so expansivity risks are ruled out. Thus, the main constraint in Canillas de Aceituno will be the possible presence of karst phenomena, which must be investigated as an indispensable prerequisite for the geotechnical design of any structure.