Estudio geotécnico in Puerto Lumbreras

In Puerto Lumbreras, soils formed by fine sands and silts predominate, together with a significant presence of slates and schists. These materials are generally firm and of low compressibility, which favours adequate bearing capacity for standard buildings, although the overall low permeability of the strata may influence the drainage of both groundwater and surface water. The minor proportion of overconsolidated clays and marls adds some local variability, but it does not constitute a general constraint on foundation design. The frequency of hard, compact materials suggests that shallow foundations are feasible, with the excavation depth adapted to the thickness of the competent layer.

Seismic activity in the area is classified as moderate, with a maximum recorded magnitude of 3.5, which means that the usual code criteria should be taken into account without requiring extraordinary measures in the design. Since the dominant substrate is non-clayey, the risk of expansivity can be ruled out as a relevant geotechnical constraint. Nevertheless, it is essential to verify the presence of karst processes associated with limestones, dolomites and marbles, even if they are infrequent, in order to avoid unexpected differential settlements before defining the optimal foundation solution.