Estudio geotécnico in Lleida

In Lleida, the dominant substratum is mainly made up of compact gravels and sands, together with outcrops of sandstone, conglomerates and flysch, all of which are very frequently present. These materials are characterised by providing good bearing capacity, which favours the use of shallow foundation solutions in most cases. The formations show considerable impermeability, although aquifers may occur in near-surface levels; it is therefore advisable to study their presence during the geotechnical borehole investigation in order to prevent water-related pathologies.

Seismicity in Lleida is very low, with only around 3 recorded events over a period of 30 years and a maximum magnitude of 2.5, which means that seismic action has minimal relevance in structural design. The non-clayey substratum rules out the risk of expansivity, so no problems associated with swelling or shrinkage are expected. In this context, the main geotechnical constraint is the need to confirm the homogeneity and continuity of the granular-bearing/resistant layers in order to size the foundations correctly and control the influence of local aquifers.