How Norwegian approach to shoveling out rock in country's longest tunnel is solving ventilation problem; project in Norway involves tunnel of 21 mi long which has area of 320 sq ft and is situated 2600 ft above sea level; solution is to use diesel locomotives to haul rail-mounted cars part way in and out of tunnel; locomotives haul train of cars through tunnel, halting at distance of 100 to 400 yd from face; at this point, track branches so that pair of parallel tracks run up to face itself. (43613)


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    Tunnel excavating system keeps ventilation costs down


    Weitere Titelangaben:

    World Constr


    Beteiligte:
    Caplan, B. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    1969


    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch


    Schlagwörter :