Geotechnical study in Bigastro

The dominant substrate in Bigastro consists of fine sands and silts, accounting for 95.93% of the sediment, which favours a good bearing capacity and ease for shallow and deep foundation techniques. The moderate permeability of the aquifers present in the area may influence the stabilisation of excavation bottoms, but in general its impact on stability can be controlled through correct design of the works.

Seismicity in Bigastro is moderate, with 52 events over 30 years and a maximum magnitude of 3.4, which requires it to be considered in the structural design. No evidence of karst or risks associated with soil expansivity is detected, since the non-clayey substrate rules out expansive-type risks during the foundation phases. The main consideration is moderate seismicity, which must be taken into account when planning the structures.