Earthwork and blasting procedures for converting Baltimore and Ohio Railroad's 254 ft long tunnel no. 20 at Petroleum, W Va, to open cut operation, which saved money and removed clearance restriction by daylighting tunnel, required removal of earth, rock and tunnel lining to subgrade elevation and for 24 ft on each side of center line of track; total amount of excavation was 41,300 cu yd; estimated conversion cost was $38,000.


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    Titel :

    Tunnel removed under traffic


    Weitere Titelangaben:

    Ry Age


    Erschienen in:

    Railway Age ; 146 , n 23


    Erscheinungsdatum :

    1959


    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch


    Schlagwörter :


    Lowering tunnel floor under traffic

    Engineering Index Backfile | 1936


    Cincinnati lays tunnel under heavy traffic

    Munyan, E.A. | Engineering Index Backfile | 1934


    LQ disharmony removed

    British Library Online Contents | 2010