Estudio geotécnico in La Pobla de Segur

In La Pobla de Segur, the predominant subsoil consists of sandstones, conglomerates and flysch, present in almost the entirety of the area. This type of soil, characterised by its stiffness and low permeability, can offer good conditions for bearing capacity for shallow foundations, although a detailed check of its degree of fracturing and the possible local presence of fine sands and silts is recommended; these appear occasionally and may present lower stability as a support layer.

As regards seismic activity, the municipality displays very low seismicity, with barely three events over thirty years and a maximum magnitude of 2.5, so the seismic constraint for structural design is minimal. The risk of expansivity is considered low due to the presence of non-expansive or dispersed clays within a non-clay matrix, which minimises the likelihood of volumetric problems associated with expansivity. The main geotechnical constraint in the area lies in correctly characterising the compaction and continuity of the sandstone and conglomerate subsoil, ensuring an adequate prior interpretation before any foundation.