More then ten tunnels are being built for line between Superi and La Cocha of General Bolgrano National Railroad; longest tunnel, 2000 m; blueprint stage construction described.
Planning, study and construction of railroad tunnel
Proyecto, Estudio y Construccion de un Tunel Ferroviario
Ciencia y Tecnica ; 116 , n 586 ; p 155-186
1951
32 pages
Maps, Profiles
Article (Journal)
Spanish
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