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Frost protection of railway lines

✍ Scribed by Håkon Hartmark

Publisher
Elsevier Science
Year
1979
Tongue
English
Weight
768 KB
Volume
13
Category
Article
ISSN
0013-7952

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✦ Synopsis

The modern operation of railways with speeds of more than 100 km/h with all-welded rails and concrete sleepers demands a railway line completely free of frost heave. On railway lines in service (in operation), protection against frost is achieved by materials demanding only a minimum insulation depth, i.e., peat, bark, discarded sleepers or foam plastic. The combination of foam plastic with a gravel layer beneath is the most widely used method today.

Since 1945 the Norwegian State Railways have carried out frost protection works as shown in Table . In Sweden and Finland systematic frost protection work has been carried out, mainly on the same principles as in Norway.

This paper describes the methods being used in railway construction with dimensional diagrams for frost insulation.

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