Estudio geotécnico in Lena

In the municipality of Lena, geotechnical studies usually find a substrate dominated by carbonate formations such as limestones, dolomites and marbles, although their presence is occasional and not widespread across the whole area. These rocks, in combination with other low-permeability lithologies, condition the ground’s bearing capacity, which tends to be high when competent materials are present, allowing shallow foundations, although it is essential to confirm the local nature of the soil to avoid surprises associated with changes in facies.

Seismicity in Lena is moderate, with 13 recorded events over the last 30 years and a maximum magnitude of 2.4, so the seismic risk is low and rarely represents a relevant limitation for building. Given the karst component of some materials, it is essential to verify the possible presence of cavities before proceeding with the foundations, as there may be underground voids that compromise structural safety. In addition, the absence of clayey soils rules out any risk of expansiveness in the area, pointing the main geotechnical constraint towards characterising the karst.