| 摘要 |
2140628 9402685 PCTABS00030 Rail support device for unballasted railway track comprising at least one concrete block (12, 13) resting on a flexible base (10), the assembly being held in an elastomeric shell (15) which is anchored in a bed of mortar (B) covering the lower part of said block, and which has a beading (18) around its top edge. The horizontal cross section of said block is variable and has a maximum area at the level immediately below the beading on the upper edge of the shell (15) so as to limit the relative movement of the block (12, 13) and the shell (15) by means of an elastic force.
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