Estudio geotécnico in Bollullos de la Mitación

In Bollullos de la Mitación, soils formed by limestones, dolomites and marbles predominate, accounting for around 79% of the geotechnical substratum. These materials are known for their high strength and good bearing capacity, characteristics that favour the feasibility of shallow direct foundations. In addition, the presence of conglomerates of fine sands and silts provides heterogeneity to the ground and may require a targeted assessment of compaction and differential settlements, although they are generally compatible with conventional foundations provided there are no local cases of saturation.

Seismicity in this municipality is very low, since only one event has been detected in the last 30 years with a maximum magnitude of 1.7, which implies a low likelihood that seismic movements will affect the structural safety of buildings. There is no karst development and, although the presence of non-expansive or scattered clays is noted as a companion matrix to other materials, the overall risk of expansivity is low. The most significant constraint for the geotechnical design will be the detailed characterisation of the sand and silt layers, especially with regard to their moisture content and uniformity, to ensure the foundation stability.