DEVICE OF UPPER TRACK STRUCTURE ON BRIDGES WITH DRIVING ON BALLAST AND METHOD OF ITS ERECTION Russian patent published in 2017 - IPC E01D19/12 

FIELD: construction.

SUBSTANCE: device of the upper track structure on bridges with driving on ballast comprises a ballast trough made of a single sheet 4 of corrosion-resistant steel in the form of an orthotropic plate, including transverse beams 5 and a single sheet of decking 4, as well as a longitudinal bead 7 of the ballast trough. Between the ballast layer of crushed stone 2 and the surface of the ballast trough itself, a layer of expanded polystyrene 3 is located. The erection method consists in mounting the ballast trough blocks consisting of transverse beams 5 and a solid sheet of decking 4, mounting the longitudinal bead of the ballast trough 7, laying a layer of expanded polystyrene plates 3 with the subsequent laying of crushed stone ballast 2 thereon, and then sleepers 1 and rails 9.

EFFECT: simplifying the device design and the mounting technology, as well as increasing the operation reliability, the installation quality, the work longevity, and reducing the operation costs for the maintenance of the upper track structure.

4 cl, 1 dwg