Method for producing a ballastless track

E - Fixed Constructions – 01 – B

Patent

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Details

E01B 2/00 (2006.01)

Patent

CA 2637208

The invention relates to a method for producing railway tracks of the ballastless track-type that are not entirely supported, especially for the reconstruction of existing railway systems. According to said method, foundations are introduced into the soil at predetermined intervals along the railway track, especially in the form of injection piles, the soil is dug out down to a predetermined level and caissons are positioned at least in the area above the previously introduced foundations. The soil inside the caissons is removed down to a further level while simultaneously lowering the caissons, thereby producing an excavation, a transverse girder is functionally connected to the foundation, especially the injection piles, and said transverse girder is connected in a subsequent step to the longitudinal girders which support the track that is not entirely supported.

L'invention concerne un procédé de production de voies ferrées qui ne reposent pas sur toute leur surface, du type voie sans ballast, notamment pour l'assainissement de systèmes de voies existants. Des fondations sont introduites sous la forme de pieux d'injection dans la terre à des distances prédéterminées le long de la voie ferrée ; le terrain est déblayé jusqu'à un niveau prédéterminé; et des caissons de fonçage sont placés au moins dans la zone située au-dessus des fondations précédemment installées. La terre à l'intérieur des caissons de fonçage est éloignée jusqu'à un autre niveau pour réaliser une fouille tout en abaissant les caissons de fonçage. Puis au moins une poutre transversale est mise en liaison mécanique avec la fondation, notamment les pieux d'injection et, dans une étape suivante, la poutre transversale est reliée aux poutres longitudinales qui constituent la voie ferrée qui ne repose pas sur toute sa surface.

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