Estudio geotécnico in Villanueva de Tapia

In Villanueva de Tapia, the subsoil is composed mainly of sandstones, conglomerates and flysch, with occasional occurrences of limestones, dolomites and marbles. These materials, which have low permeability at the surface, give the ground a favourable bearing capacity for most conventional foundations. Sandstones and conglomerates allow for shallow (direct) foundations, whereas the occurrence of carbonate rocks may require a detailed analysis in the case of deep excavations, due to their structural variability.

Seismicity in the municipality is very low, with barely one recorded event in thirty years and a low maximum magnitude, which does not represent a significant concern for structural design. However, the presence of carbonate materials implies the possibility of karst processes, so it is essential to verify the presence of cavities or dissolution before executing the foundation. The absence of clayey soils rules out expansivity-related risks; the main geotechnical constraint is the assessment of the possible existence of karst in the limestone and dolomite areas.