MACHINE TO LAY GEOSYNTHETIC MATERIALS INTO UNDERBALLAST LAYER OF RAILWAY GROUND WORK WITHOUT REMOVAL OF RAIL AND SLEEPER GRID Russian patent published in 2013 - IPC E01B27/10 E01B27/11 

FIELD: construction.

SUBSTANCE: machine comprises a device for raising a rail and sleeper grid, conveyors to supply filling material. The machine is equipped with a device to hold and supply geotextile for its laying under a volume geogrid, devices for feeding the volume geogrid under the raised rail and sleeper grid and its stretching for the width specified by the project with guiding mechanisms having a controlled angle of opening in respect to the machine axis, inserted with its ribs into the geogrid design. The geogrid is protected against slipping off the guides with elements that are structurally coupled with them. The machine is also equipped with a device to supply and distribute the filling material into the volume geogrid, with a device for dropping the filling material off the surface of sleepers and heads of rails into sleeper-to-sleeper boxes, a device for moistening of the filling material prior to its compaction, a device for levelling and compaction of the filling material.

EFFECT: acceleration of works to repair a railway ground work with considerable reduction of road machines number and application of manual labour.

4 dwg