Estudio geotécnico in Betxí

In Betxí, a substrate is predominant, composed mainly of fine sands and silts, which represent almost 68% of the soils, generally providing an average but variable bearing capacity. Outcrops of limestones, dolomites and marbles are observed with some frequency, which may offer good conditions for direct foundation. However, the occasional presence of gypsum, anhydrite and salts introduces a risk of dissolution, which must be assessed beforehand to avoid differential settlement. Aquifers, with moderate permeability and production, must also be taken into account in the planning of the foundations.

Seismic activity in Betxí is high, with 200 events over 30 years and a maximum recorded magnitude of 4.7, which means seismicity must be considered in structural design. Given the presence of carbonate materials, there is potential for karst development; it is essential to verify the existence of cavities or voids before carrying out any foundation in order to avoid instabilities. The non-clayey substrate rules out any risk of significant expansivity, leaving as the main constraint the possible dissolution of gypsum and the appropriate characterisation of the karst risk, in coordination with the necessary anti-seismic measures.