Estudio geotécnico in Épila

In Épila, soils of compacted gravels and sands predominate. These materials are characterised by high bearing capacity and excellent performance for shallow foundations. To this are added occasional levels of sandstones, conglomerates and flysch, as well as the local presence of limestones, dolomites and marbles; the latter justify special attention to geomechanical behaviour and stability. Likewise, the occurrence of gypsum, anhydrite and salts indicates the existence of possible dissolution processes, which can severely affect ground stability and requires specific checks before defining the foundation level (cota) of the foundations. Overall permeability is high, with extensive and productive aquifers, which provides advantages for drainage but may require hydraulic controls depending on the type of structure envisaged.

The seismicity in Épila is moderate, with 35 events over 30 years, although the maximum recorded magnitude (Mmax 2.1) is low, which reduces its influence on structural design. However, karst-origin formations, represented mainly by limestones and dolomites, make it essential to verify possible voids and subsidence before executing the foundations. The lack of an argillaceous substratum excludes the risk of expansiveness. Therefore, the main conditioning factor for the geotechnical study in Épila will be the identification of karstic cavities and the assessment of the risk of dissolution in gypsum-bearing soils—two aspects that are critical for the safety and durability of the foundations.