Analysis of the performances of a tunnel borer tin the Guadiaro-Majaceite (Spain) bypass gallery

摘要

The UTE Gaudima group, made up of Dragados y Construcciones and the Fomento de Construcciones y Contratas (FCC), two major Spanish civil engineering firms, constructed this gallery in cooperation with the International Tunneling Services (ITS) group, made up of the Seli (Italy) and jaeger companies (Austria). ITS handled in particular the choice of borers and the from used For underground operations. This group also provided the necessary technical resources and manpower. The hydraulic gallery is 12, 185 meters long, and the finished inside dia-meter is 4.2 meters. The gallery crosses the Sierra de Libar mountain ranges in a southeastorthwest direction.