Estudio geotécnico in Trillo

In the municipality of Trillo, limestone, dolomites and marbles predominate, accompanied by significant areas covered by masses of water. On a smaller scale, sandstones, conglomerates and flysch are also present, and, in occasional proportions, gypsum, anhydrite and salts. This type of ground is characterised by its low expansivity, which makes it possible to rule out problems related to the expansivity of clays in foundations. However, calcareous and dolomitic soils can give rise to the formation of voids through karst processes, which is why it is essential to check for the existence of cavities or dissolution before proceeding with the design of the foundations. In addition, the presence of gypsum and salts entails a risk of dissolution processes, which may adversely affect bearing capacity if they are not correctly identified in the geotechnical campaign.

Seismic activity in Trillo is significant, since around 200 events have been recorded over 30 years and a maximum magnitude of 4,6, which requires the structural design to take this factor into account through the application of appropriate seismic standards. The presence of formations with low permeability and the possibility of deep aquifers add further hydrogeological complexity to the area. In conclusion, the main constraint for the geotechnical study in Trillo is the interaction between the potential development of karstification in the limestones and dolomites, the possible influence of soluble salts and the high seismicity—factors that require detailed investigation before any construction work.