Computer aided design of ballastless track for Dutch high-speed line

The HSL-Zuid, the Dutch link to the European high-speed network, will be built as ballastless track. A non-empirical system acceptance method is set up for the development of two types of ballastless track. The system acceptance method is based on a failure mode analysis identifying all possible problems that can occur during the life cycle of the track. All questions raised by the failure mode analysis and the specifications are to be solved by means of computer models, laboratory tests, literature study or design calculations. One of the research and development questions resulting from this process concerning the stress distribution due to the force exerted by the train to the direct fastening system is outlined. Horizontal forces exerted on the track are distributed to the concrete substructure by the various track components of the direct fastening system. The occurring stresses in the track components and the displacements of the rail are made visible with the help of a validated 3D-computer model. The influence of the baseplate pad stiffness and the collar bush properties are discussed. Furthermore failure cases counting for bad construction or failing components are included. For the covering abstract see ITRD E125214.

Language

  • English

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Filing Info

  • Accession Number: 01011763
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • ISBN: 0-947644-43-1
  • Files: ITRD
  • Created Date: Dec 19 2005 3:30PM