EP4130379A1 - Procédé de correction de la distance latérale et de la distance en hauteur d'une bordure de quai à l'axe de la voie - Google Patents

Procédé de correction de la distance latérale et de la distance en hauteur d'une bordure de quai à l'axe de la voie Download PDF

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Publication number
EP4130379A1
EP4130379A1 EP22187233.6A EP22187233A EP4130379A1 EP 4130379 A1 EP4130379 A1 EP 4130379A1 EP 22187233 A EP22187233 A EP 22187233A EP 4130379 A1 EP4130379 A1 EP 4130379A1
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EP
European Patent Office
Prior art keywords
track
tamping
platform
height
correction
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP22187233.6A
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German (de)
English (en)
Inventor
Bernhard Lichtberger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HP3 Real GmbH
Original Assignee
HP3 Real GmbH
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Filing date
Publication date
Application filed by HP3 Real GmbH filed Critical HP3 Real GmbH
Publication of EP4130379A1 publication Critical patent/EP4130379A1/fr
Withdrawn legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B27/00—Placing, renewing, working, cleaning, or taking-up the ballast, with or without concurrent work on the track; Devices therefor; Packing sleepers
    • E01B27/12—Packing sleepers, with or without concurrent work on the track; Compacting track-carrying ballast
    • E01B27/13—Packing sleepers, with or without concurrent work on the track
    • E01B27/16—Sleeper-tamping machines
    • E01B27/17—Sleeper-tamping machines combined with means for lifting, levelling or slewing the track
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B35/00—Applications of measuring apparatus or devices for track-building purposes
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B35/00—Applications of measuring apparatus or devices for track-building purposes
    • E01B35/02—Applications of measuring apparatus or devices for track-building purposes for spacing, for cross levelling; for laying-out curves
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B35/00—Applications of measuring apparatus or devices for track-building purposes
    • E01B35/02—Applications of measuring apparatus or devices for track-building purposes for spacing, for cross levelling; for laying-out curves
    • E01B35/04—Wheeled apparatus
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B35/00—Applications of measuring apparatus or devices for track-building purposes
    • E01B35/06—Applications of measuring apparatus or devices for track-building purposes for measuring irregularities in longitudinal direction
    • E01B35/10—Applications of measuring apparatus or devices for track-building purposes for measuring irregularities in longitudinal direction for aligning

Definitions

  • the invention relates to a method for correcting the lateral distance and the vertical distance of a platform edge of a platform to the track axis of a track with a track-movable track tamping machine equipped with a lifting and straightening unit and a tamping unit, wherein initially with a 3D Image recording device platform and track are recorded, that an evaluation device determines the spatial positions of the platform edge and track axis from the recorded image data, calculates the actual value for lateral distance and height distance and by comparing these actual values with nominal lateral distances and nominal height distances, correction values for the direction and the height depending on the track kilometers be calculated and that the track position is adjusted by the calculated correction values using the lifting and straightening unit and fixed in the correct position with the tamping unit.
  • a method for maintaining a track for rail vehicles is known, with a laser rotation scanner attached to the front of the track construction machine, for example, recording the current condition of the track including any obstacles that may be present, such as platform edges or switch elements.
  • the two-dimensional data obtained using the scanner are supplemented by the position data to form a 3D image.
  • the correction data which in turn are used to control the lifting/straightening or tamping unit, are determined from the desired track position data determined using this data.
  • a final measurement with complete logging is planned with the same vehicle.
  • a track tamping machine that has a measuring system that has three measuring carriages reveals the WO 2020233934 A1 . That can be done with a camera system track being processed and obstacles in the track can be scanned, with which the tamping units can be controlled in a targeted manner in order to avoid obstacles.
  • Measuring and control systems based on the three-point method are mainly used to guide the correction tools of the superstructure machine.
  • the machine control controls the track lifting and straightening system in such a way that it brings the track to the desired position. This position is fixed by tamping the sleepers.
  • the railway superstructure machines are equipped with so-called acceptance measuring systems and an acceptance recorder.
  • the remaining errors are recorded with this acceptance recorder.
  • specified tolerances of the track position errors must be undershot.
  • Two-axle measuring cars are known which carry an inertial navigation measuring system, with the aid of which the geometric position of the track can be measured in terms of height, direction, superelevation, inclination and torsion.
  • track geometry optimization programs are known, which consist of a measurement be able to determine a target geometry by means of an inertial navigation measuring system or a chord measurement and, by comparison with the actual position, correction values in height and direction as well as the transverse height.
  • Time-of-flight cameras can carry out 3D measurement recordings, i.e. deliver dimensional images and use the transit time method to measure distances to recorded motifs, i.e. they can measure distances. Spatial measurements are also possible with stereoscopically arranged digital cameras.
  • the distance and height of the train boarding should be within certain tolerances as far as possible. If the distances or height differences are too great, passengers can be endangered. The height and distance of the track from the platform (platform) must therefore be checked regularly and, if necessary, corrected with track tamping machines.
  • Laser scanners currently allow measuring angles of more than 180°, measuring frequencies up to 50Hz, measuring distances of 0.3-5m and absolute accuracies of 1-2mm standard deviation.
  • the distances and heights of the track to the edge of the platform are measured using manual methods or total stations.
  • the deviations from the target distance and the target height of the track to the platform are recorded at certain distances in the longitudinal direction of the track and the tamping machine or written to the sleepers. If the values are written on the thresholds, then these are entered manually into the control by the operator in front of the car.
  • the work result is checked behind the tamping machine, again manually or with a total station.
  • another disadvantage is that the work result is not automatically recorded continuously (measurements every 5 m are usual) and that exceeding the tolerances are not automatically measured and recorded objectively.
  • the invention is therefore based on the object of specifying a method which allows absolute deviations of a track axis of a track to an associated platform edge of a platform to be checked with simple means and, if necessary, corrected in one operation. According to a development of the invention, it should also be possible to directly check the correction that has been made and compliance with specified tolerances.
  • the invention solves the problem in that a measuring system of the track tamping machine, which has three measuring carriages, a front, a middle and a rear measuring carriage, is guided in such a way that the track position with the tamping unit and the lifting and straightening unit is adjusted by the correction values for the direction and the height is corrected and the corrected track axis follows the reference lines for the lateral distance and the height distance, resulting in particularly simple correction relationships. This allows the measured track position error to be corrected within narrow tolerances.
  • 3D image capturing device used that objects or image points in the capturing and recording area are captured with associated distance data, so that a three-dimensional image can be generated over the course of the track using known methods.
  • Individual recordings are assigned to a specific track kilometer, i.e. to a specific position along the track axis.
  • a 3D image capturing device provided in the area of the front of the tamping machine and directed towards the track and platform captures the track and platform depending on the kilometer position.
  • the position can be measured using an odometer or satellite position data.
  • Image data and the evaluation data obtained from them are always stored together with the assigned position on the track, i.e. depending on the track kilometers.
  • the spatial positions of the platform edge and track axis are calculated from the recorded image data.
  • the platform edge runs at least approximately parallel to the rails and the track axis, which is also parallel to the rails, is determined by the position of the rails.
  • the image can be scaled over the specified rail distance, usually 1,500 mm for standard gauge, and a transverse axis lying on the rail heads can be determined on which the track axis lies in the middle between the two rails.
  • This transverse axis is mathematically shifted parallel upwards to the measured edge of the platform.
  • the shifting distance corresponds to the height difference.
  • the lateral distance is determined from the distance on the displacement axis between the edge of the platform and a displacement axis normal going through the track axis.
  • the measured actual distances are compared with target distances and from this correction values are determined for the lifting and straightening device, which straightens the track at the position assigned to the measuring points, i.e. offset in the track axis direction to the 3D image acquisition device, according to the correction values and in the straightened position plug fixed.
  • a laser scanner, a time-of-flight (TOF) camera and/or a stereoscopic camera system are preferably used as the image acquisition device for surveying the track and the platform. Depending on which camera is more suitable for the respective purpose.
  • the platform and track are recorded with the image capturing device installed on the track tamping machine, either in a separate measuring run or, particularly preferably, in the directional run with a first image capturing device arranged at the front end of the tamping machine, which may be connected in the working direction with an actuator via a front Buffer breast of the tamping machine can also be moved. If the image capturing device can be moved in the working direction with an adjusting drive beyond a buffer breast of the tamping machine, then it can be withdrawn into a secured area of the track tamping machine during transfer journeys. In measuring operation, on the other hand, it is ensured that the platform and track as well as any obstacles can be properly recorded. Due to the known distances along the longitudinal axis of the track tamping machine, correction values determined depending on the track kilometers can be corrected in the correct position.
  • the track can be released again after the measurement run.
  • a second image recording device is installed at the rear end of the tamping machine, which records the course of the correction position and correction height achieved by the tamping work on a storage medium during the tamping work and verifies compliance with the tolerances, the track can be released again immediately after the track work has been completed and decreases the duration of a required track closure.
  • the second image capturing device can optionally counter to the working direction be displaceable with an actuator via a rear buffer breast of the tamping machine.
  • the advantages of the invention lie in the precise, automatic and dense detection in the longitudinal direction of the track of the deviations in the actual position of the track relative to the edge of the platform and the automatic guidance of the tamping machine according to the detected deviations.
  • Another advantage is the automatic quality control by recording the remaining deviations after tamping. Quality control checks whether the tolerances are exceeded. Exceedances are marked and the tamping machine can correct them in a correction process if necessary.
  • Another advantage is the automatically achieved higher quality of the correction and measurement and a reduction in the susceptibility to errors.
  • this front end can be guided (virtually) on the nominal track position and the rear end on the track that has already been corrected.
  • the straightening and lifting process is carried out at the work site.
  • the position of the tamping machine in the longitudinal track axis is determined with an odometer.
  • the machine 1 shows a track tamping machine 1 working in the working direction A.
  • the machine is designed to be mobile on a track 3 with bogies 2 .
  • a lifting and straightening unit 4 namely the roller tongs 15, the lifting hook 14 or the track straightening roller 7 and the lifting cylinders 5, the track can be lifted and aligned laterally.
  • the track lifting unit is articulated to the machine frame via a drawbar 13 and can be moved in the longitudinal direction of the machine by means of hydraulic cylinders.
  • the travel distance along the track is measured with an odometer or a GPS system. All recorded data are processed and recorded by an evaluation device 16 .
  • the three measuring carriages 6 and 8 form the usual three-point system for measuring the track.
  • an inertial navigation measuring system 9 which is located on the rear measuring car 8, the current track position and the course of the track in space is recorded.
  • the position of the track is fixed after lifting and straightening.
  • Telescoping image acquisition device carriers 18 are located at the front and, if necessary, at the rear of the machine 1, by means of which the laser scanners 17 can be moved beyond the buffer breast and corresponding scans can be made there Position 19 can make.
  • the distance c lies between the scanning plane and the front measuring carriage 6 of the measuring system. If the correction values are measured at position 19, a cross-section through the platform and track at a certain track kilometer, they are offset by the distance c and fed to the three-point system. This data is fed into the evaluation device 16 .
  • platform 19 and track 3 are recorded with a 3D image acquisition device 17 built on the tamping machine 1 .
  • the evaluation device 16 determines and calculates the spatial positions of the platform edge K and track axis GA from the recorded image data from this the actual value for the lateral distance D and the vertical distance H.
  • correction values for the direction VD, vl, vr and the height VH, h are calculated depending on the track kilometers by subtraction.
  • the track geometry is finally straightened by the calculated correction values by means of the lifting and straightening unit 4 and fixed in the straightened position with the tamping unit 12 .
  • FIG. 2 shows schematically two platforms 19 enclosing a track 3, usually only one platform will be provided, the sleeper 20 and the transverse axis 21 between the rails 3, which rests on the upper edge of the rails.
  • the lateral distance D to the edge of the platform K is measured from the connecting line 23 which goes through the track axis GA and is normal to the transverse axis 21 .
  • the track axis GA lies in the middle between the two rails on the transverse axis 21.
  • a line 22 intersecting the platform edge is drawn parallel to the transverse axis 21.
  • the normal distance between the line 22 and the transverse axis 21 corresponds to the vertical distance H of the track axis GA to the edge of the platform.
  • Typical target height distances with tolerances are, for example, 760 +5/-35mm.
  • Typical target lateral distances to the track axis with tolerances are 1,700 +35/-50mm.
  • Accuracies in the range of 1mm are achieved with currently available laser scanners, which is sufficient for the required accuracy.
  • FIG 3 shows a schematic of a scan of a certain track kilometer, i.e. a cross-section through platform 19 and track 3.
  • the rail spacing S (usually with standard gauge 1,500mm) and scale the image.
  • the transverse axis 21 resting on the top of the rails is also obtained from the scan. This is mathematically shifted parallel upwards to the measured platform edge K 22. This results in the measured vertical distance H.
  • the connecting line 23 is calculated at right angles. The The distance between the edge of the platform K and the connecting line 23 on line 22 corresponds to the measured lateral distance D.
  • FIG. 4 shows schematically the measurement diagram of the measured lateral distance MD of the platform edge from the track axis GA.
  • the target lateral distance ND of the platform from the track axis is drawn into the curve.
  • MIN and MAX indicate the permissible tolerances. If the course of MD were within the tolerances, no correction would be necessary in principle.
  • the differences between the measured lateral distance MD and the target lateral distance ND result in corrections to the left from left or right from right depending on the position.
  • the three-point system of the tamping machine, in particular the front measuring carriage 6, is corrected by the correction values VD (on the right in 4 ) virtually at the front tendon point.
  • DAW corresponds to the reference line of the average target distance to the edge of the platform.
  • the course of the platform edge is formed by smoothing (sliding averaging) in the longitudinal direction. This compensates for or smoothes out any outliers such as flaking at the edge, joints or grooves on the edge of the platform.
  • figure 5 shows schematically the measurement diagram of the measured height distance MH of the platform edge to the track axis.
  • the nominal height distance NH of the platform from the track axis GA is drawn into the curve.
  • Min and Max indicate the permissible tolerances.
  • F shows a track error where the track is too high and therefore above MAX. This error cannot be corrected with a track tamping machine. Tamping machines cannot lower the track, only lift it and straighten it sideways. The error will remain in this area. So that there is a continuous transition to this track error F, the reference line of the height distance NH' can be brought up to the MAX line as a polygon.
  • the reference line of the height distance NH' is then guided in such a way that it lies within the MIN and MAX tolerances and above the actual height MH.
  • the resulting elevations h (dotted line) relative to the reference line HAW (from NH') are given in the diagram on the right.
  • the diagram shows the correction values VH with respect to the altitude.
  • the height edge NH of the platform can also be compensated by smoothing any unwanted errors such as breaks, joints, etc.
EP22187233.6A 2021-08-04 2022-07-27 Procédé de correction de la distance latérale et de la distance en hauteur d'une bordure de quai à l'axe de la voie Withdrawn EP4130379A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ATA50636/2021A AT525332A1 (de) 2021-08-04 2021-08-04 Verfahren zur Berichtigung des Seitenabstandes und des Höhenabstandes einer Bahnsteigkante zur Gleisachse

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EP4130379A1 true EP4130379A1 (fr) 2023-02-08

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EP22187233.6A Withdrawn EP4130379A1 (fr) 2021-08-04 2022-07-27 Procédé de correction de la distance latérale et de la distance en hauteur d'une bordure de quai à l'axe de la voie

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AT (1) AT525332A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1028193A1 (fr) 1999-02-10 2000-08-16 Franz Plasser Bahnbaumaschinen-Industriegesellschaft m.b.H. Méthode de correction de la position d'une voie de chemin de fer
WO2017215777A2 (fr) 2016-06-13 2017-12-21 Plasser & Theurer Export Von Bahnbaumaschinen Gesellschaft M.B.H. Procédé et système d'entretien d'une voie de communication pour véhicules ferroviaires
WO2019140467A1 (fr) 2018-01-22 2019-07-25 Hp3 Real Gmbh Procédé d'amélioration de la position d'une voie ferrée par une machine de bourrage de voies pouvant circuler sur des voies ferrées
US20190367060A1 (en) * 2018-06-01 2019-12-05 Tetra Tech, Inc. Apparatus and method for calculating wooden crosstie plate cut measurements and rail seat abrasion measurements based on rail head height
WO2020233934A1 (fr) 2019-05-23 2020-11-26 Plasser & Theurer Export Von Bahnbaumaschinen Gesellschaft M.B.H. Engin de pose de voie et procédé pour bourrer une voie ferrée

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT519739B1 (de) * 2017-05-12 2018-10-15 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Verfahren zum Steuern einer Gleisbaumaschine
AT520824B1 (de) * 2018-05-24 2019-08-15 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Verfahren und Maschine zum Unterstopfen eines Gleises im Bereich einer Weiche

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1028193A1 (fr) 1999-02-10 2000-08-16 Franz Plasser Bahnbaumaschinen-Industriegesellschaft m.b.H. Méthode de correction de la position d'une voie de chemin de fer
WO2017215777A2 (fr) 2016-06-13 2017-12-21 Plasser & Theurer Export Von Bahnbaumaschinen Gesellschaft M.B.H. Procédé et système d'entretien d'une voie de communication pour véhicules ferroviaires
WO2019140467A1 (fr) 2018-01-22 2019-07-25 Hp3 Real Gmbh Procédé d'amélioration de la position d'une voie ferrée par une machine de bourrage de voies pouvant circuler sur des voies ferrées
US20190367060A1 (en) * 2018-06-01 2019-12-05 Tetra Tech, Inc. Apparatus and method for calculating wooden crosstie plate cut measurements and rail seat abrasion measurements based on rail head height
WO2020233934A1 (fr) 2019-05-23 2020-11-26 Plasser & Theurer Export Von Bahnbaumaschinen Gesellschaft M.B.H. Engin de pose de voie et procédé pour bourrer une voie ferrée

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