Estudio geotécnico in Olvera

In Olvera, the dominant geological substrate is formed by sandstones, conglomerates and flysch materials, which represent more than half of the soils in the municipality. These materials typically offer good bearing capacity, although their degree of compaction and the occasional presence of interbedded clayey layers may locally modify the behaviour of the foundations. Areas with limestones, dolomites and marbles, although less frequent, may involve considerable lithological variations, whereas the presence of compact gravel and sand is much rarer, although the latter can show good support values provided they are properly confined.

Seismicity in Olvera is high, with more than 200 registered events in the last 30 years and a maximum magnitude reaching 4.5, which requires incorporating earthquake-resistant criteria into the structural design of any building. Another relevant consideration is the potential development of karst-related phenomena due to the presence of limestones and dolomites, meaning it is essential to verify the existence of cavities and sinkholes before defining the foundation. The non-clayey substrate practically rules out risks associated with expansivity-related phenomena, positioning the verification of karst and seismicity as the main geotechnical constraints for the sector.