ARRANGEMENT OF TRACK SUPERSTRUCTURE ON BRIDGES WITH TRIP ON BALLAST AND METHOD OF ITS ERECTION Russian patent published in 2013 - IPC E01D19/00 

FIELD: construction.

SUBSTANCE: between a ballast layer of crushed stone and an insulating material there is a layer of geotextile material and a layer of foam plastic. Foam plastic is "Penoplex", type 45. An elasto-yielding gasket is arranged between the layer of the insulating material and the foam plastic layer. A multi-layer shock-absorbing noise-attenuating mat is placed between the layer of the insulating material and the foam plastic layer, and the mat comprises the elasto-yielding gasket and layers of geotextile material that cover it from the top and at the bottom. The ballast layer of crushed stone for the entire thickness is impregnated with a polymer compound, which creases an elastic crushed stone and polymer system along the entire bridge length. The method to erect the track superstructure on bridges with trip on ballast consists in assembly of a ballast tank, application of a layer of an insulating material on it and laying of a ballast later from crushed stone and sleepers with a rail track. The novelty is the fact that after application of the insulating material layer onto the ballast tank it is coated with the foam plastic layer and the geotextile material layer with further laying of ballast layer of crushed stone on it and sleepers with a rail track. Previously the elasto-yielding gasket is laid onto the layer of the insulating material with further laying of the foam plastic layer on it. Previously on the layer of the insulating material they lay a multi-layer shock-absorbing noise-attenuating mat comprising the elasto-yielding gasket and layers of geotextile material covering it from the top and at the bottom, with further laying of the foam plastic layer on it. After laying of the ballast layer from crushed stone, a polymer compound is introduced in it for the entire thickness, which creates an elastic crushed stone and polymer system at the entire length of the bridge. Previously, before laying of a ballast layer, the crushed stone is coated with a wear resistant waterproof compound.

EFFECT: improvement of a device.

10 cl, 2 dwg