Estudio geotécnico in Begues

In Begues, the subsoil is dominated by limestones, dolomites and marbles, materials with a notable consistency and high bearing capacity, which favours the transfer of loads for shallow or semi-deep foundations. However, the occasional presence of gypsum, anhydrite and salts introduces an additional risk associated with possible dissolution phenomena, especially in contexts with groundwater circulation. Clays and hard marls occur in the minority, which limits their influence on the overall ground behaviour. Therefore, the choice of foundation type must be based on a precise characterisation of the lithological profile and verifying the absence of soluble materials in the support zone.

Seismicity in Begues, with 75 recorded events in the last 30 years and an Mmax of 3.6, is considered to be of a notable level, but the maximum level reached does not require strict conditions for the structural design of the foundations. However, since karst is present in the area, it is essential to check for the existence of cavities, voids or irregularities in the subsoil before carrying out any foundation, as these can jeopardise stability. Likewise, the absence of expansive clays rules out significant problems related to expansivity. The determining factor for the geotechnical study in this municipality will be the control of potential karst processes and the presence of soluble materials at depth.