The principal structural elements that characterized the metro station are the concrete retaining walls, 1 m thick, and a series of concrete circular columns, 1.2 m diameter, positioned in a regular grid 14.70 x 12.00 m. The foundation of the columns consists of circular concrete piles, 1.8 m diameter and 9 m deep Figure 4. The materials mechanical properties of the structural elements are shown in Figure 5.