Estudio geotécnico in Ponteareas

In Ponteareas, soils formed by sandstones, conglomerates and flysch predominate, implying a substrate with good mechanical competence. These materials provide adequate bearing capacity for shallow foundations in most situations, although the local presence of fine sands and silts requires a detailed assessment due to their compressibility and lower strength, avoiding their use as the principal bearing stratum where possible. The risk of the presence of groundwater in specific areas must be considered, particularly due to the local presence of water bodies.

Seismicity in Ponteareas corresponds to moderate activity, recording 42 events over 30 years and a maximum magnitude reaching 4.9, which requires incorporating the relevant seismic actions in the structural design of buildings. The non-clayey substrate present in the area rules out the risk of expansivity; therefore, the main geotechnical factor for the geotechnical study is the need to characterise the local variability of the materials and to consider the seismic requirements for the foundation.