A method and machine for the lowering of a track.

Details A method and machine for the lowering of a track. A method and machine for the lowering of a track.

E - Fixed Constructions

01

B

E01B 27/20 (2006.01) E01B 35/08 (2006.01)

Patent

CA 2679645

For the controlled lowering of a track (2), in a rear scanning location (11) of a measuring system (10) a longitudinal slope (.alpha.) of the track (2) is captured and recorded. For a length extending back at least (10) meters, a current height profile (16) is generated and a rear compensation line (17) overlaid thereon and representing a target track position is calculated. The rear scanning location (11) is computationally guided along the rear compensation line (17) such that a compensation value for the position of the measurement axis (12) results at a center scanning location (11) positioned between the rear and a front scanning location (11).

L'invention concerne l'abaissement contrôlé d'un rail (2), pour lequel une inclinaison longitudinale (a) du rail (2) au niveau d'un point d'exploration arrière (11) d'un système de mesure (10) est enregistrée et mémorisée. Pour une longueur remontante de quelques (10) mètres, un profil de hauteur (16) réel est formé et une droite d'ajustement (17) arrière reproduisant une position théorique de rail surmontant celui-ci est calculée. Le point d'exploration arrière (11) est guidé de manière numérique le long de la droite d'ajustement arrière (17), de sorte qu'une valeur de compensation de la position des sécantes de mesure (12) en résulte au niveau d'un point d'exploration (11) médian positionné entre le point d'exploration (11) arrière et un point d'exploration (11) avant.

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