Deck track: new philosophy of track building

Deck track is a new type of ballastless track construction developed by Holland Railconsult for use on soft soils. Deck track consists of an endless concrete carrier laid in the ground with the track directly fixed on top of it. The concrete deck is cast with hollows in it, so that its weight is less or equal to the mass of the soil removed. Due to the high stiffness of the construction, differential settlements are avoided and vibration is reduced. The high stiffness over the self-weight ratio makes the structure extremely suitable for high speeds and facilitates the construction of tunnels under the track. Other benefits of deck track include its low positioning, which enables optimal integration of a track into the environment. Deck track has been developed for use with embedded rail. This type of rail fastening has been in use in the Netherlands for more than 25 years, showing it to be very maintenance friendly. Latest developments also show that using a dedicated rail profile further improves embedded rail. The noise emission does not exceed the level that conventional ballasted track will produce and the use of embedding compound is reduced by 60%. A 200m length of deck track has been in service on the Havenspoorlijn since July 1999. This line is part of the Betuweroute (dedicated freight line linking Rotterdam and Germany) and carries several dozen heavy freight trains per day. The test was set up to demonstrate buildability and to study the behaviour of the subsoil under the effects of cyclic trainloads. The results of this test are positive. For the covering abstract see ITRD E125214.

Language

  • English

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Filing Info

  • Accession Number: 01011767
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • ISBN: 0-947644-43-1
  • Files: ITRD
  • Created Date: Dec 19 2005 3:30PM