When new construction is planned, it is important to study the effect that this has on existing works. This is the case of the new Pavilion 0 of the Giannina Gaslini Institute in Genoa, which will be built at the Lamba Doria double-track tunnel on the Genoa-Pisa line. For this reason, Geosolving has developed two-dimensional numerical analyses with a FEM model created with RS2 and three-dimensional analyses with an FDM model created with FLAC3D. It was possible to reproduce the tensional conditions of the subsoil before and after the intervention.