Finnish slab track study for Airport Line

The Ring Rail Line is an important railway connection planned to connect two existing urban lines and provide a connection between Helsinki city centre and Vantaa airport. A study is described which investigated the suitability of a slab track system as an alternative to a traditional ballasted track for the 7 km long double tunnel section under the airport. Two alternative slab track solutions were defined: a) a reinforced surface slab and a base slab made from zero-slump concrete founded on a clean rock surface or compressed crushed stone and b) a reinforced surface slab and reinforced concrete trough based on compressed crushed stone. Cost calculations covering materials, labour, equipment, maintenance, overheads and payback time are examined and the assumptions made are stated. It was concluded that for this project a slab track was not economic. Procurement methods were also studied and it is suggested that if considered early enough in project planning and if used on a large enough scale there is no reason why the technique should not be feasible in other cases.

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  • Authors:
    • NUMMELIN, M
    • VIITALA, T
    • TUNNINEN, N
    • NYBY, M
  • Publication Date: 2009

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 01144038
  • Record Type: Publication
  • Source Agency: TRL
  • Files: ITRD
  • Created Date: Nov 16 2009 12:22PM