Estudio geotécnico in Carrión de los Céspedes

In Carrión de los Céspedes, soils derived from limestones, dolomites and marbles predominate—rocky materials with a high bearing capacity that often show high load-bearing performance. The continuous presence of these lithological types favours the selection of shallow direct foundations, although it is important to assess the rock’s compaction and possible fracturing in order to define the most suitable system. The inherently low permeability of these formations may limit water infiltration, which is advantageous from the standpoint of foundation stability, but requires attention when considering the possible occurrence of perched aquifers in surface discontinuities.

In terms of geotechnical risks, Carrión de los Céspedes is located in a zone of very low seismicity, with only a single significant event reported in 30 years and a low maximum magnitude (Mmax 1.7), which minimises the seismic constraint for structural design. There is no problem associated with karst, and although non-expansive clays may be found in the matrix of these soils, the risk of expansivity is low due to the non-clayey nature of the main substrate. Thus, the main aspect to consider is the detailed characterisation of the rock and its possible leaching or surface fracturing.