Estudio geotécnico in Colmenar

In Colmenar, soils derived from sandstones, conglomerates and flysch predominate, followed by slates and schists, while formations of limestones, dolomites and marbles are less common. This lithological set is characterised by generally impermeable formations or those with very low permeability, which limits infiltration, although the presence of small near-surface aquifers is possible. The mechanical properties of these materials provide favourable bearing capacity in most cases, facilitating direct foundation solutions except in areas with a localised occurrence of less competent materials.

The municipality shows moderate seismicity, with 25 events in the last 30 years and a maximum recorded magnitude of 3,8, so it does not imply strict constraints for structural design. Given the significant presence of limestones and dolomites, it is essential to carry out a specific assessment of the karstification risk before defining the foundation, as the development of hidden cavities could affect the stability of the supports. The absence of expansive clays stands out as a favourable factor and rules out the risk of expansivity in the analysed soils.