Method for producing rail infrastructure

Abstract

To lay the bed for a railway permanent way, the rail bed is formed of concrete, and dowels (18) to secure the rails are anchored in the concrete in a positive fit. The dowels are inserted into the concrete as the rail bed (14) is stabilized and while the concrete is still malleable. The dowels are inserted by a machine (16) which travels along the rail bed, to place them in the fresh concrete at equal intervals into raised sections (24) which act as the sleepers.

Description

technical field [0001] The invention relates to a method for manufacturing a rail substructure in a railway track, wherein the track bed is poured with concrete, and the rail is firmly anchored in the concrete with dowels. Background technique [0002] In conventional railway tracks, the substructure generally consists of road-building crushed stone bed and wooden or concrete railway sleepers, on which fastening claws are mounted with bolts so that the rails can be adjustably fastened. If the railroad tie is a composite part made of concrete, the dowels are already cast into the finished concrete part when the railroad tie is manufactured and the bolts can then be screwed into the dowels. In this way the dowel can be reliably anchored in the concrete. [0003] For rail substructures, it is also known to replace the road-building gravel bed with a bed of concrete. In known methods of producing such a rail substructure, the track bed is cast with a ...

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Problems solved by technology

However, this method is time-consuming and costly

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