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(11) | EP 1 186 709 A3 |
| (12) | EUROPEAN PATENT APPLICATION |
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| (54) | Concrete sleeper sole for high speed rail track |
| (57) The sole is fixed to the concrete sleeper (2) by means of a series of linear, continuous,
parallel and equidistant projections (3), arranged longitudinally on the underside
(4) of the sole (1) which is applied on the base (5) of the sleeper (2). The respective
centre planes of said projections (3) for fixing are orthogonal to said underside
(4), and, their transversal sections (6) take the form of a double harpoon which prevents
the detachment of the sole (1), with respect to the sleeper (2), with the particularity
that the edges (7) or outermost projections (3) are separated from the rims (8) of
the base of the sleeper (2). Said sole constitutes a supporting bed for the concrete
sleepers (2) employed in high speed railway lines, said supporting bed proving effective
for reducing the settlement and the friction of the ballast, and also the disorder
from vibration in the latter and the and the deterioration of the geometry of the
line. |