Estudio geotécnico in Eibar

In Eibar, the dominant geological substratum is formed by carbonate rocks such as limestones, dolomites and marbles, representing more than 90% of the surface. These lithologies, of compact nature and high bearing capacity, provide favourable conditions for the direct foundation of structures. The very point-specific presence of granite, gneiss and other igneous rocks hardly influences the overall behaviour of the ground; therefore, lithological variability is low and the permeability of the strata is generally reduced, limiting water infiltration and ensuring hydric stability for supporting conventional foundations.

Seismic activity in Eibar is very low, with only 2 recorded events in the last 30 years and a maximum magnitude of 3.7; therefore, the risk associated with seismic movements is practically negligible and does not represent a significant limitation in structural design. As it is a non-clayey substratum, the presence of significant expansivity is ruled out, which minimises potential ground movements due to changes in moisture. Consequently, the local geotechnical conditions in Eibar are characterised mainly by the excellent mechanical properties of the carbonate materials, making them favourable for most foundation typologies.