Sleeper is a transverse support for a railway track to give
stiffness to it. the sleeper should counteract the tendency of forces, which
tends to distribute the track and should acts as elastic medium between the
rail and the ballast in order to absorb all the shocks and vibrations of the
trains.
Functions of sleepers
1. to hold the rails to correct gauge.
2. to distribute the axle load over a sufficient large area
of ballast
3. to give firm and
even support to the rails.
4. to maintain the alignment and proper grade of track.
5. to provide easy replacement of rails fastening without
disturbing traffic seriously.
6. to provide insulation for electrified track.
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