Estudio geotécnico in Pedrezuela

In the municipality of Pedrezuela, soils formed by slates and schists predominate, accounting for more than 75% of the substrate, with an occasional presence of sandstones, conglomerates and flysch. These lithologies are characterised by being resistant and only slightly deformable, although their laminated structure can favour planes of weakness. The bearing capacity of these soils is usually suitable for most buildings, allowing for shallow foundations where weathering is limited. Low permeability is a relevant feature, as it restricts infiltration and reduces the risk of differential settlements due to consolidation.

Seismic activity in Pedrezuela is very low, with only two recorded events over the last thirty years and a maximum magnitude of 2.4, which minimises the structural design requirements related to seismic actions. There are no indications of karstification or of expansive materials, since the dominant substrate rules out risks associated with the expansivity of clay soils. The main conditioning factor in the area is typically linked to the presence of foliation planes in slates and schists, which can affect both the stability of slopes and the ground’s response to concentrated loads.