Geotechnical study in Binéfar

In Binéfar, the predominant subsoil is composed of sandstones, conglomerates and flysch formations, accounting for more than 70% of the materials in the municipality. These types of ground characteristically show competent load-bearing capacity, which makes it possible to establish conventional shallow foundations with good performance. However, there is a significant presence of fine sands and silts which, although less frequent, may have lower bearing capacity and require precautions in design, particularly when they occur at the surface or in areas close to the foundation.

The municipality shows high seismicity, with 200 events in the last 30 years and an Mmax of 4.8, which means this factor must be taken into account in the structural design of any building, both in the choice of foundation type and in the construction solutions. There is no evidence of karstification and the presence of expansive clays is limited to specific areas or particular climatic conditions; therefore, the main constraint in Binéfar for the geotechnical study will be seismicity, highlighting the need for a detailed seismic analysis to define appropriate safety criteria.