Geotechnical study in Crevillent

In Crevillent, the subsurface is dominated by fine sands and silts, which represent the largest proportion of the materials present. These soils generally provide moderate bearing capacity, so it is essential to carry out a detailed analysis to define the most appropriate foundation, since the occasional presence of sandstones, conglomerates and flysch is usually rare. In addition, the low permeability of these formations affects natural drainage and can influence both differential settlement and the design of the foundation drainage systems.

Seismicity in the municipality is moderate, with 23 events over 30 years and a maximum magnitude of 4.1, which means attention is required during structural sizing, although this is not an elevated level of risk. Given the possibility of karst presence, it is necessary to verify this condition prior to any foundation, as it could affect the stability of the supporting ground. Finally, since the substrate is non-clayey, the risk of ground expansiveness is ruled out, with the most important geotechnical factor being the possible existence of karst cavities and the adequate characterisation of the bearing capacity of the sandy and silty soils.