Estudio geotécnico in Pantoja

In Pantoja, the predominant subsoil is mainly composed of limestones, dolomites and marbles, hard materials with good bearing capacity, ideal for direct foundations on rock if the rock mass is sound. Sandstones, conglomerates and flysch provide lithological variability that may require detailed characterisation, whereas the local presence of compacted gravels and sands can serve as a competent founding stratum if found in sufficient thicknesses. Special attention should be paid to areas with gypsum, anhydrite and salts, as these materials present a risk of dissolution and possible differential settlements, affecting the safety of foundations.

Seismicity in Pantoja is high, with more than 200 recorded events over 30 years and a maximum magnitude reaching 5.1; therefore, it is essential to integrate seismic criteria into the design of structures. In addition, the existence of karstification associated with limestones and dolomites requires thorough verification before any foundation work, as the presence of cavities may compromise stability. The local existence of expansive clays also entails a significant risk of volumetric movements. The main constraint in this municipality lies in the combined influence of karst, the risk of gypsum dissolution and the notable seismic activity.