New methods of subgrade stabilization are devised which take into consideration traffic loading, moisture within ballast and subgrade, and physical and physicochemical properties of subgrade soil; study included laboratory experiments on chemically stabilized specimens; durability tests on various synthetic resin films laid with sand beneath ballast and repeatedly loaded with mechanical vibrator mounted on full-size model track, and application of stabilization methods to actual tracks for prevention of mud pumping and various field investigations; methods tried on soft subgrades of Japanese National Railroads.


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    Title :

    How to relieve soft subgrade


    Additional title:

    Tokyo Ry Tech Research Inst -- Quarterly Report


    Contributors:
    Miyako, J. (author) / Takeshita, S. (author) / Akahane, M. (author) / Otani, T. (author)


    Publication date :

    1965


    Size :

    6 pages


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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