Estudio geotécnico in Les Planes d'Hostoles

In Les Planes d'Hostoles, formations of sandstones, conglomerates and flysch predominate; these materials are characterised by their compactness and stable mechanical behaviour. Since these soils are composed mainly of consolidated sedimentary rock, they exhibit good bearing capacity, which enables the design of shallow foundations on competent strata, provided that the degree of alteration is not significant. It is important, however, to consider the low permeability of these formations, which may favour the presence of aquifers at depth and require appropriate hydrogeological management during excavations and infrastructure works.

With regard to geodynamic conditions, the municipality’s seismicity is very low, given that only two events have been recorded in thirty years with a maximum magnitude of 2,5, which rules out the need for specific seismic measures. The subsoil does not have an clayey nature, so the risk of expansiveness is ruled out, thereby facilitating the design and construction of foundations. It is essential to check for karst processes before founding, since their presence could affect ground stability and determine the choice of the most suitable foundation type.