Construction of vehicular tunnel of semi-circular section with 14-ft radius on 5-ft springline solving difficult highway-location problem on major approach route; driving procedure modified as work progressed to increase daily advance from 5.6 to 18 ft; ventilation system; drilling diagrams of tunnel driving; concrete lining and paving; driving, with both heading and bench-drilling; curved bars used in drilling wing holes.


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    Titel :

    Driving 4,230-ft tunnel in Yosemite National Park


    Weitere Titelangaben:

    Eng News-Rec


    Beteiligte:
    Moore, C.S. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    1933


    Format / Umfang :

    3 pages


    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch


    Schlagwörter :



    Air Quality and Transportation at Yosemite National Park

    Raley, D. L. / Wilcox, G. J. / American Society of Civil Engineers | British Library Conference Proceedings | 1998


    Integrated Transportation and User Capacity Research in Yosemite National Park

    Lawson, Steve / Newman, Peter / Choi, Janet et al. | Transportation Research Record | 2009