Estudio geotécnico in Laguna de Negrillos

At Laguna de Negrillos, the dominant ground is formed mainly by compact gravels and sands, which constitute about 72% of the substrate, accompanied to a lesser extent by sandstones, conglomerates and flysch. This granular composition generally provides good bearing-capacity conditions, allowing direct foundation solutions, although it is necessary to assess the local continuity and compaction of the ground. The presence of aquifers with permeability and moderate production levels must be taken into account during the geotechnical study, as it directly influences drainage and stability conditions.

From a seismic point of view, Laguna de Negrillos shows significant activity, with approximately 200 events over 30 years and a maximum magnitude of 4.7, which means that seismic action must be incorporated into the structural design. In addition, there are localised areas with expansive clays, which creates a potential risk of expansivity that can affect the stability of foundations if it is not correctly identified and treated. In conclusion, the main geotechnical constraints in this area are associated with both the presence of localised expansive clays and the high seismicity; both factors primarily condition the feasibility and design of the foundation solutions.