METHOD AND SYSTEM TO EXTEND RAIL TRACK Russian patent published in 2015 - IPC E01B29/02 

FIELD: construction.

SUBSTANCE: method to extend a rail track from a joint of an existing track (36) comprises a stage (101) of track skeleton transportation; a stage (103) of skeleton positioning from the joint of the existing groundwork, when an operator engages a mechanism of motion outside the track, in order to arrange the rear joint of the extended skeleton vertically along the level of the joint of the existing track; a stage (105) of skeleton release, when an operator diverts the mechanism of motion outside the track; and a stage (107) of skeleton installation, when the operator lowers the skeleton until the joined end of the skeleton is in a butt joint with the end of the existing track. A system for extension of a rail track by connection of a joint (36) of the existing track includes a mechanised platform (34), made of rail wheels for movement along the existing track (31) and a detachable mechanism of motion outside the track, which makes it possible to move another skeleton (32) along the existing track and outside the existing one, one full gantry crane (33), designed to lift another skeleton (32), and a connection skeleton (38), suspended on a bracket in front of the mechanised platform (34).

EFFECT: invention achieves higher speed and accuracy of rail track laying.

14 cl, 33 dwg