RAILWAY TRACK FOR TUNNELS Russian patent published in 2008 - IPC E01B2/00 E01B3/38 

FIELD: transport.

SUBSTANCE: invention is designed for use in tunnels of main-line railroads, industrial transport, undergrounds and tramways. Railway track for tunnels contains rails, rail seat in the form of reinforced-concrete stay sills. These stay sills contact separately with the track concrete layer under each rail thread, through the rubber strips in the vertical, transverse horizontal and lengthwise directions. There are ledges inside the track concrete layer, in the area of stay sill faces and near their lateral surfaces on the side of the tunnel coating. The ledges perform the role of their lengthwise and lateral supports. Buckle plate area between stay sills is divided into the pedestrian path and the drainage gutter. Pressing of adjacent stay sills in the area of their faces against the lengthwise supports of track concrete layer is executed in the vertical direction with the use of pressure plates and fastening elements. There are pockets in the end parts of the stay sills made in accordance with the form of pressure plates. The area of the joint contact of the lower surface of stay sills, undersills strips and the surface of track concrete layer relatively the inclined plane, passing through the axis of the rail balance is conditionally divided into two uneven parts with the larger area on the side of the track axis and the smaller - on the side of the tunnel coating.

EFFECT: control of reliable pressing of stay sills; exclusion of the uneven vertical displacement of the stay sills end parts; exclusion of the excessive canting of rail; control of joint operation of stay sills for the special working conditions of the track; the possibility of conducting the assembling and dismantling works without the cutting out the track concrete layer.

6 cl, 8 dwg