Concrete-lined tunnel 1 mi. 70 ft. long with clear width inside 16 ft. and clear height 22 ft. 6 in.; side walls are vertical and top is semi-circular arch with radius of 8 ft.; construction equipment; in excavating tunnel bottom heading method was used; placing concrete lining. (See also Contract Rec vol. 45, no. 12, Mar. 25, 1931 pp. 351-355, 5 figs)


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    Title :

    One-mile railway tunnel under city of Quebec


    Additional title:

    Can. Engr


    Published in:

    Publication date :

    1931


    Size :

    3 pages


    Remarks:

    4 Figs.


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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