Rail track constant height setting support - comprises hydraulic jacks between surfaces with slots for locating between rail and support girder

摘要

The system keeps a railway track at constant height while a structure is inserted underneath. the height of the track (1) is kept constant by supports (9) adjustable for height between the structure and the lowermost position of the supporting girders (2). These are either stationary or follow the moving supporting points. Slides (4) can be provided between the supporting pints and equipped with guide edges (6). These can be formed by hydraulic jacks with rectangular grooves in the base of the cylinder and the top of the piston.