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US 7,641,127 B2Granted
Making fixed railway track
AssigneesHain, Uwe & Hain, Silke, LS Beratungsburo Lublow GmbH
InventorWolfgang Markus
Life of this patent
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Abstract
A track system is made by setting a longitudinally extending row of concrete high-pressure injection piles in grown soil and then positioning atop the piles a succession of sleeper frames each including a pair of longitudinally extending rigid concrete beams held together transversely by a rigid steel structure. A longitudinally extending body of concrete is then cast between the beams around the steel frame. Finally longitudinally extending rails are fastened atop the beams.
Claims5
A method of making a track system, the method comprising the steps of:
- prefabricating a plurality of sleeper frames each including a pair of longitudinally extending rigid concrete beams held together transversely by a rigid steel structure;
- introducing pairs of concrete piles into grown soil with steel girders fixed in the piles;
- fixing transverse steel supports to the girders of the piles;
- positioning and fastening the prefabricated sleeper frames on the steel supports;
- casting a longitudinally extending body of concrete between the beams around the steel structure and around upper ends of the girders underneath the steel structure;
- and
- after hardening of the cast concrete, mounting longitudinally extending rails atop the beams.
4 more elements
Dependencies are inferred from the claim text.