Track leveling method

Details Track leveling method Track leveling method

E - Fixed Constructions

01

B

104/16

E01B 1/00 (2006.01) E01B 27/18 (2006.01)

Patent

CA 1203124

ABSTRACT OF THE DISCLOSURE In a method for automatically leveling a track comprised of two rails fastened to a succession of ties supported on a ballast bed to establish a desired track level, wherein successive track sections including a respective one of the ties are consecutively raised, additional track bed material is blown under each one of the raised ties to fill a gap between the ballast bed and each raised tie, and the raised track sections are lowered after the additional track bed material has been blown under the raised ties, the steps of measuring the existing track level at each tie to be raised and obtaining a corresponding parameter, establishing the difference between the parameter corresponding to the existing track level and an error parameter corresponding to the desired track level, raising each successive track section above the desired track level determined by the error parameter, limiting the amount of the additional track bed material blown under each raised tie at a point of intersection between the tie and a respective one of the rails to that required to attain a track level no higher than slightly above the desired trade level under the control of the error parameter, and lowering the track tie to the desired level.

421212

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