Geotechnical study in Linyola

In Linyola, gravels and compact sands predominate, accompanied occasionally by sandstones, conglomerates and flysch. In general, these materials provide a good bearing capacity for shallow foundations, provided that isolated lenses of friable materials are not located. The low permeability of the formations ensures stability against flows of groundwater, although it may favour the presence of shallow aquifers in some areas, which requires a specific check of the groundwater table in investigations carried out prior to foundation construction.

As regards seismic activity, the municipality exhibits very low seismicity, with only 1 recorded event over 30 years and a low maximum magnitude (Mmax 2.6); therefore, this aspect has very little impact on structural sizing. Expansive clays occur in a subordinate way and in climatic settings that do not exacerbate the risk, so expansivity is not considered a principal limiting factor. Overall, the choice of foundation type in Linyola will be determined mainly by the local variability of the granular materials and the possible presence of shallow aquifers.