The Study and Development of Polyurethane Adhesive for slipping layers of CRTS Slab Ballastless Track for High-speed Railway

摘要

There are slipping layers between CRTS Slab Ballastless Track for High-speed Railway and surface of bridges.These slipping layers are composed by geomembranesgeotechnical fabric and Adhesives,and are used for reducing force between tracks and bridges.Tracks are laid down continuously, but the bridges called simple support is located under it, and its one end can be movable under the role of the train longitudinal force and the track temperature stress.Therefore, bridges and the track can be movable mutually. But, if the track base plate is directly constructed on the waterproof layer ofbridges, very big friction force is produced between beam and plate, in that case,it is very difficult to move and even becomes impossible. Slipping layers are used to realize the technical measures for slipping mutually between beam and plate.