Geotechnical study in Almendralejo

In Almendralejo, substrates formed by compacted gravels and sands predominate, accompanied by sandstones, conglomerates and flysch, which provides good bearing capacity for shallow foundations in most cases. The occasional presence of fine sands, silts and hard clays requires that the uniformity and compactness of the ground be verified in specific areas, although the predominance of granular materials is favourable for buildings, minimising the risk of differential settlement and allowing conventional foundation solutions in most of the municipality.

Almendralejo is located in an area of very low seismicity, with a maximum of one event in 30 years and a magnitude below 4, which means that seismic risk is not a relevant constraint for structural design. The non-clayey substrate rules out problems associated with expansive soils. Due to the low frequency of carbonate rocks and the absence of karst processes indicated, no specific investigation is required in this regard. The main factor requiring attention corresponds to local variations in substrate type and the occasional presence of masses of water, which may influence the choice of foundation depth.