Estudio geotécnico in Alcalà de Xivert

In Alcalà de Xivert, carbonate rocks predominate, such as limestones, dolomites and marbles, accounting for more than 67% of the substratum and providing a solid and competent foundation for spread and deep foundations. Fine sands, silts and the occasional presence of gravels and compact sands can be found in specific areas, whereas overconsolidated clays and marls occur only in almost insignificant proportions. The fundamentally rock-dominated nature of the ground and the low surface permeability favour a high bearing capacity, ideal for the construction of structures that require shallow or deep foundations; however, it will be essential to identify any aquifers at depth during the geotechnical study.

Seismic activity is very low, with only 3 events in 30 years and a maximum magnitude of less than 2, which minimises the incidence of seismic risks in structural design. However, the presence of carbonate materials implies the potential development of karstification; therefore, the absence of voids or cavities must be verified before carrying out any foundations to avoid differential settlement or local collapses. Given the nature of the substratum, the risk of expansiveness is ruled out. Thus, the main factor governing the feasibility of foundations in Alcalà de Xivert is the control of the karst phenomenon and the correct characterisation of the ground lithology.