| 摘要 |
FIELD: construction of railways. SUBSTANCE: bearing unit comprises at least one concrete block which lays on flexible cushion 10. The unit and flexible cushion keeps together inside a shell made of an elastomer and secured in the layer of solidified mortar which encloses the bottom portion of the block as well as having the top edge with a thickening or collar. The area of the cross-section of the block varies and reaches a maximum at a level immediately under the collar of the top edge of the shell so as to flexibly arrest mutual movement of the block and its shell. EFFECT: enhanced reliability. |
