Geotechnical study in Alhama de Murcia

In Alhama de Murcia, fine sands and silts predominate, together with a significant presence of limestones, dolomites and marbles. This composition provides a competent substrate which, although it presents areas of low permeability, offers suitable conditions for shallow and semi-deep foundations. The sand and silt horizons may limit the local bearing capacity, whereas the carbonate formations generally allow efficient structural solutions provided that their specific stability is verified.

Seismic activity in the area is notable, with 98 events recorded over 30 years, although the maximum magnitude does not exceed 3.5, which implies a moderate level of seismic risk that must be assessed in the design of infrastructure. The risk of expansivity is ruled out due to the absence of expansive clays in the substrate. However, it is essential to check for the possible presence of karst phenomena in limestones and dolomites before carrying out the foundation, as they can undermine the safety and durability of structures. The main constraint for the geotechnical study in Alhama de Murcia is the potential existence of karst cavities; their early identification enables any constructive intervention to be properly sized.