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Advancement in track technology - composite foundations for increased speed and axle loads

Conference Paper


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Abstract


  • The increasing demand for fast heavy haul services with greater axle loads, as well as high speed commuter

    trains, poses a serious challenge for the stability of tracks on the problematic ground. The use of artificial

    inclusions such as polymeric geosynthetics for enhanced soil-structure interaction and rubber mats made from

    recycled rubber tyres to absorb the strain energy and reduce ballast breakage and track damage is described

    in this paper as a cost-effective option. In this study, a series of large-scale laboratory tests took place to

    determine how well these geogrids could attenuate the impact, cyclic stress, and corresponding mitigation of

    ballast degradation. Comprehensive field trials took place on two full-scale rail tracks in the towns of Bulli and

    Singleton in New South Wales. These trials facilitated the evaluation of different types of geogrids, geocomposites

    and rubber mats installed in fully instrumented track sections, as well as the possible reuse of

    spent ballast. This paper focuses mainly on research projects at the University of Wollongong to enhance

    track performance by highlighting some examples of innovation from theory to practice; including case studies.

Publication Date


  • 2018

Citation


  • Indraratna, B., Ngo, N. & Rujikiatkamjorn, C. (2018). Advancement in track technology - composite foundations for increased speed and axle loads. Conference on Railway Excellence (pp. 442-451). United States: Informit.

Ro Full-text Url


  • https://ro.uow.edu.au/cgi/viewcontent.cgi?article=3074&context=eispapers1

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers1/2069

Start Page


  • 442

End Page


  • 451

Place Of Publication


  • United States

Abstract


  • The increasing demand for fast heavy haul services with greater axle loads, as well as high speed commuter

    trains, poses a serious challenge for the stability of tracks on the problematic ground. The use of artificial

    inclusions such as polymeric geosynthetics for enhanced soil-structure interaction and rubber mats made from

    recycled rubber tyres to absorb the strain energy and reduce ballast breakage and track damage is described

    in this paper as a cost-effective option. In this study, a series of large-scale laboratory tests took place to

    determine how well these geogrids could attenuate the impact, cyclic stress, and corresponding mitigation of

    ballast degradation. Comprehensive field trials took place on two full-scale rail tracks in the towns of Bulli and

    Singleton in New South Wales. These trials facilitated the evaluation of different types of geogrids, geocomposites

    and rubber mats installed in fully instrumented track sections, as well as the possible reuse of

    spent ballast. This paper focuses mainly on research projects at the University of Wollongong to enhance

    track performance by highlighting some examples of innovation from theory to practice; including case studies.

Publication Date


  • 2018

Citation


  • Indraratna, B., Ngo, N. & Rujikiatkamjorn, C. (2018). Advancement in track technology - composite foundations for increased speed and axle loads. Conference on Railway Excellence (pp. 442-451). United States: Informit.

Ro Full-text Url


  • https://ro.uow.edu.au/cgi/viewcontent.cgi?article=3074&context=eispapers1

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers1/2069

Start Page


  • 442

End Page


  • 451

Place Of Publication


  • United States