FIELD: construction.
SUBSTANCE: invention relates to the upper structure of a railway track. Sub-rail gasket consists of two layers of resilient material of different rigidity. Upper layer is made solid from resilient material of less rigidity. Lower layer is made from elastic material of higher rigidity and has through holes for their filling with elastic material of sectors of the upper layer at increase of load on the rail.
EFFECT: reduced dynamic cyclic load on resilient rail fastening.
1 cl, 3 dwg
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