The regularity of track is a control factor which influences the safety of vehicles. For many foundation underpinning projects crossing existing rail transit tracks, the displacement of the underpinned foundation must be controlled within a reasonable range, which helps ensure the regularity of the track. Using the pile underpinning project of Tianjin-Binhai light railway as an example, this paper analyzes the impact on the regularity of track imposed by simulation calculation with software of ANSYS and Adams/Rail and test. The research results indicate: during underpinning, the change of static track regularity was lower than the controlled value of the criterion; the running safety indicators including the derailment coefficient (DC) and the reduction rate of wheel load (RRWL) were both under the limited value of norms. The underpinning of Tianjin-Binhai light railway bridge did not impose obvious impact on the regularity of the track, and the allowable displacement of underpinned pier is reasonable.


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    Title :

    Impact on Regularity of Track from Pile Underpinning of Light Railway Bridge


    Contributors:
    Li, Xiangguo (author) / Wang, Hailong (author) / Zhou, Quan (author) / Bu, Jianqing (author) / Li, Musong (author)

    Conference:

    Ninth International Conference of Chinese Transportation Professionals (ICCTP) ; 2009 ; Harbin, China


    Published in:

    Publication date :

    2009-07-23




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English




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