FCC Construcción has received New Civil Engineering Tunnelling award for the Bolaños Tunnel, bored using TBM. Tunnel and Bridge Technologies provided technical support to these works, which consisted in the complete design of the precast tunnel segments, and also of the cut and cover tunnels situated at the extremes of the main tunnels. FCC’s award submission highlighted its innovative solution for the treatment of collapsed material, as well as the dual-component backfilling mortar injection system and the mixed-drilling system.
