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  • Life-cycle assessment and repair of the railway transition zones of an existing bridge using geocomposite materials
    Fifer Bizjak, Karmen ...
    The railway infrastructure is a very important component of the worldʼs total transportation network. Investment in its construction and maintenance is therefore significant on a global scale. Up to ... now, some results of the life-cycle assessment (LCA) of open railway line, as well as railway bridges and tunnels, have been published, but detailed analyses of transition zones have not so far been performed. In railway networks, transitional zones are a critical area where the transition from open rail to solid bridge constructioncan cause significant settlements. The goal of these analyses was to compare two different types of track renewal methods for railway transitionzones. In the first method, traditional cement stabilisation is used, whereas the second solution makes use of a geocomposite anchored by steel anchors. The paper presents some results from an environmental study forrailway transition zones based on the demonstration case. The results of the performed LCA showed that, in the case of track renewal for transition zones by means of a geocomposite and anchors, the environmental impact is lower than in the case when cement stabilisation works are performed. Less extensive excavation works and thus lower quantities of used material are additional benefits.
    Source: Structure and infrastructure engineering. - ISSN 1573-2479 (Vol. 13, iss. 3, 2017, str. 331-344)
    Type of material - article, component part ; adult, serious
    Publish date - 2017
    Language - english
    COBISS.SI-ID - 2213735

    Link(s):

    http://www.tandfonline.com/doi/full/10.1080/15732479.2016.1158288
    DOI

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