Geotechnical study in Llaurí

In Llaurí, soils of fine sands and silts predominate, indicating a generally moderate bearing capacity and high permeability thanks to the presence of productive aquifers. Although it is uncommon, soft expansive clays and harder materials such as gravels and sandstones are also found in smaller proportions. For foundation design, it will be crucial to analyse the regularity and compactness of the sandy and silty subsoil, and to avoid the influence of water masses, considering exclusively the competent strata located below the softest or saturated deposits.

Seismic activity in the municipality is very low and does not represent a relevant constraint for structural design. No risk of expansivity is detected as the subsoil is predominantly non-clayey, although the absence of problematic soils must be confirmed for each plot. However, it highlights the possibility of the presence of karst, a factor that requires detailed investigation to rule out cavities or dissolution before defining the level and type of foundation, which constitutes the main geotechnical constraint in the area.