FIELD: construction.
SUBSTANCE: invention relates to railway track superstructure and methods of its operation. Rails are fixed on sleepers in lodgments with possibility of adjustment. Rails are made symmetrical with two opposite heads. At wear of side working face, right and left rails are exchanged, at repeated wear, rails are turned by lower head upwards, and at next wear of working head rails are changed again in places.
EFFECT: longer service life of track bars.
6 cl, 2 dwg
