WO1995014817A1 - Procedes de maintenance pour voies de chemin de fer - Google Patents

Procedes de maintenance pour voies de chemin de fer Download PDF

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Publication number
WO1995014817A1
WO1995014817A1 PCT/GB1993/002419 GB9302419W WO9514817A1 WO 1995014817 A1 WO1995014817 A1 WO 1995014817A1 GB 9302419 W GB9302419 W GB 9302419W WO 9514817 A1 WO9514817 A1 WO 9514817A1
Authority
WO
WIPO (PCT)
Prior art keywords
track
maintenance
machine
lift
sleepers
Prior art date
Application number
PCT/GB1993/002419
Other languages
English (en)
Inventor
Peter Livingstone Mcmichael
Original Assignee
British Railways Board
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by British Railways Board filed Critical British Railways Board
Priority to PCT/GB1993/002419 priority Critical patent/WO1995014817A1/fr
Priority to AU55696/94A priority patent/AU5569694A/en
Publication of WO1995014817A1 publication Critical patent/WO1995014817A1/fr

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Classifications

    • 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
    • E01B2203/00—Devices for working the railway-superstructure
    • E01B2203/16—Guiding or measuring means, e.g. for alignment, canting, stepwise propagation

Definitions

  • This invention relates to railway track maintenance utilising a track maintenance machine which runs on the track. More particularly, but not exclusively, the invention relates to railway track maintenance by the so- called stoneblowing method •
  • the track In the case of tamping the track can also be purposely overlifted in a controlled manner and tamped. The overlift is then eliminated by the action of subsequent traffic and/or a track stabilisation device to its design height.
  • the track stabilisation device When the track stabilisation device is mounted on the machine to act immediately after tamping the track immediate post maintenance should be at its design height. Otherwise there will be a residual overlift as in the case of stoneblowing. in practice the immediate post maintenance level is somewhat unpredictable.
  • the aim of the present invention is to improve the control of the immediate post maintenance track geometry.
  • a method of track maintenance utilising a track maintenance machine which runs on the track and which has track lifting equipment and stone injection or stone tamping or other stone packing equipment and also has a measuring system for monitoring the lifting of the track by the track lifting equipment, the method comprising determining the necessary adjustments to be made to achieve a design profile and then as the machine progresses along the track overlifting the track at selected sleepers and injecting or tamping stone under the sleepers,is characterised in that the said measuring system is arranged to measure the lift achieved at an immediate post maintenance position to the rear of the machine with reference to the level of unmaintained track to the front of the machine as the machine progresses along the track.
  • the overlifting of the track is controlled in part in dependence upon the measured immediate post maintenance lift.
  • a correction factor for controlling the overlift at future sleepers may be obtained by determining the relationship of the applied lift to the immediate post maintenance lift at a number of sleepers
  • Advanrageously the overlift is controlled in the sense to maintain the track immediate post maintenance substantially smooth.
  • Said measuring system may comprise at least one straight reference line extending from a front feeler located forwardly of the track maintenance machine on uncorrected track to a rear feeler located at said immediate post maintenance position and sensor means measure the vertical offsets of the track from said line at predetermined points along said line and comprise a first sensor for measuring the offsets at a position forward of the lifting equipment on uncorrected track and a second sensor for measuring the offset of the track adjacent the track lifting equipment.
  • the reference line may be a wire but it could be a beam of electromagnetic radiation such as a laser beam.
  • Figures 1 serves to explain a double pass stoneblowing method
  • Figure 2 serves to explain a single pass stoneblowing method.
  • FIG. 1 a section of railway track is shown at 1 on which a stoneblowing machine 2 is located, which during a maintenance run travels in the direction of arrow 3.
  • the stoneblowing machine is represented in the drawing by foremost and rearmost load bearing bogies 4 and 5 respectively.
  • the bogie 4 has wheelsets 6 and 7 and the bogie 5 has wheelsets 8 and 9.
  • the wheelset constitutes the feeler guided on the track at point C and the further feelers 11 to 13 guided on the track at points A,B and D are in the form of trollies having flanged wheels running on the track.
  • the feelers 11 and 13 support the ends of a wire 14 extending between them, the wire 14 constituting a measuring reference system.
  • the wheelset 6 supports a sensor 15 for determining the vertical offset of the track from the wire 14 at point C and the feeler 12 supports a sensor 16 for determining the vertical offset of the track from the wire 14 at point B.
  • the track maintenance machine 2 also has distance measuring equipment (not shown) to determine the position of the machine on the track
  • Track lifting e ⁇ uipment of known form is represented at 18 and stone injection equipment of known form is represented at 19.
  • An on-board computer (not shown) is provided to record the measurements made by the sensors 15 and 16 and the distance measuring equipment and to provide data processing utilising these measurements in order ,inter alia, to calculate the stone quantities to be placed under the sleepers. Under control of the computer the stone quantities are automatically delivered in known manner from a hopper (not shown) to the stone injection equipment 19 at the appropriate time as the machine progresses along the track.
  • a preliminary measuring run is first carried out over the length of track to be maintained.
  • the offsets of the point B from the wire 14 are measured at stepped intervals along the track using sensor 16 and recorded in the on-board computer. From these measurements the original track profile represented by the dotted line passing through points A,B,C and D is calculated.
  • the design profile represented by the dashed line passing through D" and the design lift DD" for each sleeper and hence the stone quantities to be injected under each sleeper can be calculated.
  • the offsets of the track at point C from the wire 14 are measured using the sensor 15 and recorded in the on-board computer.
  • a difference value can be obtained representing the void beneath any given sleeper and can be used in determining sleeper height adjustments to achieve the design level if the chosen method requires it.
  • it could be mounted on a separate feeler positioned adajacent a wheelset in order to obtain a loaded measurement If a loaded measurement is not required then instead of using a loaded wheelset 6 to support the sensor 15, a further feeler similar to the feelers 11 to 13 could be provided and positioned between the wheelset 6 and the feeler 11.
  • a maintenance run is carried out during which the machine travels in the 'direction of arrow 3.
  • the track is overlifted by equipment 18 at selected sleepers such that the maximum lift BB'is given to the sleeper to be stone injected.
  • the predetermined quantities of stone are then injected by injection equipment 19 at the selected sleepers.
  • the track behind the injection equipment settles onto the stone under the weight of the sleepers and the passage of the rear of the machine over it.
  • the track beneath the machine is represented by the full line A,C,B',D'.
  • the point D' indicates the level of the track immediately after the machine has passed, i.e. the immediate post maintenance level.
  • the sensor 16 monitors the height to which the track is lifted to control the track lifting equipment 18 to achieve the desired overlift. This is done by comparing the height of point B' relative to points A and C with the height measured for point B during the preliminary measuring run using the outputs of sensors 15 and 16.
  • the feeler 12 supporting the sensor 16 is positioned as close as practical to the sleepers that are to be stone injected.
  • the sensor 15 measures the offsets of the track at point C from the wire 14. Since the levels of points A and C remain the same during both the preliminary measuring run and the maintenance run, the change in offset DD' at point D, i.e. the immediate post maintenance lift and hence the residual overlift D'D" can be calculated.
  • the change in the output of the sensor 15 between the preliminary measuring run and the maintenance run gives an indication of the change in the height of the wire 14 caused by the track at feeler 13 changing from D to D' .
  • AC is a sub-multiple of the distance AB
  • the optimum situation will be the one that operates with the smallest value of residual overlift D"D' and where the residual absolute height of D' is the same at each sleeper so that the track immediate post maintenance is smooth.
  • Experience shows that there is a correlation between the value of immediate post maintenance lift DD' and the actual lift BB' given to each sleeper during stoneblowing but that this relationship varies from site to site. Therefore by comparing the lift DD' with the actual lift BB' that was given to each sleeper the relationship for the site being maintained can be calculated. This information can then be used to control future lifts at subsequent sleepers such that the residual overlift D"D' is kept to a controlled value.
  • the correction to the overlift can be applied on a sleeper by sleeper basis but an improvement will probably result if the correction is made on the mean result from a number of sleepers. If the mean value of the immediate post maintenance lift is taken from say the last ten sleeper positions recorded then the system will adapt to any underlying trends in the track whilst being resistant to any bass individual results. With experience the number of sleepers over which to take the average can be optimised. The machine can thus be built to "learn" the characteristics of each individual site and adapt itself to it.
  • this data can be recorded in a data base.
  • the machine can be programmed to choose the most suitable lift/settlement characteristics to be used at the commencement of maintenance. These values, if wrong, will rapidly converge to the optimum values as the adaptive system derived from the measurement of immediate post mainte lance lift as described above takes control. hen the machine is first used a value of constant overlift can be used on the first few sleepers. The machine will then adapt these values to achieve the optimum result.
  • the method described above uses sensors 15 and 16 measuring offsets from a wire chord 14 as its measuring system.
  • FIG. 2 a machine capable of carrying out a single pass stoneblowing operation is shown.
  • the machine is similar to that of Figure 1 and the same reference numerals have been used to designate 2 corresponding items.
  • the differences from the machine of Figure 1 are at the front end of the machine where further feelers 21, 22 and 23 contact the track 1 at points E, F and G and further sensors 23, 24 and 25 are provided on feelers 11, 21 and 22. Also the wire chord is extended to
  • AE is a sub-multiple of the distance AF
  • AC is a sub-multiple of the distance AF From the versine measured at E by the sensor 24 in relation to A and G measured from the outputs of sensors 23
  • a correction for the track geometry can be derived.
  • the output of sensor 15 can be used to adjust for the loaded track profile.
  • the versine at point F is measured in relation to points A and G as the machine progresses - Q _
  • Another method to derive the control information would be to use an inclinometer attached to a track measuring trolley pushed ahead of the machine to record the premaintenance track geometry.
  • the system could either use the lost motion device described in this Patent to index the track geometry measuring trolley along the track or the indexing could be achieved by the track maintenance machine itself as it

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Machines For Laying And Maintaining Railways (AREA)

Abstract

Un procédé de maintenance pour voies de chemin de fer par projection de ballast consiste à utiliser une machine (2) de maintenance de voies qui roule sur la voie et comporte un équipement (18) de soulèvement de voies, un équipement (19) d'injection de ballast et un système (6, 11, 12, 13, 14, 15 et 16) de mesure permettant de contrôler le soulèvement de cette voie par l'équipement de soulèvement de voies. Ce procédé consiste à déterminer les adaptations qui s'imposent pour obtenir un profil de conception puis à pratiquer ces adaptations tandis que cette machine progresse le long de la voie tout en la soulevant à certaines traverses, puis à injecter des quantités prédéterminées de ballast sous ces traverses, la voie reprenant appui sur le ballast après cette injection. Le système de mesure est aussi conçu pour mesurer le soulèvement obtenu juste après la maintenance à l'arrière de la machine par rapport au niveau de voie avant la maintenance mesuré devant la machine tandis que celle-ci progresse sur la voie. L'invention permet de plus de maîtriser le soulèvement de la voie en partie en fonction du soulèvement mesuré juste après la maintenance, en fonction par exemple de la moyenne de telles mesures effectuées à un certain nombre de traverses précédentes. On peut obtenir un facteur de correction permettant d'éviter un soulèvement excessif aux traverses à venir en déterminant la relation existant entre le soulèvement retenu et le soulèvement mesuré juste après la maintenance à un certain nombre de traverses. Ce procédé peut aussi s'appliquer au bourrage.
PCT/GB1993/002419 1993-11-24 1993-11-24 Procedes de maintenance pour voies de chemin de fer WO1995014817A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/GB1993/002419 WO1995014817A1 (fr) 1993-11-24 1993-11-24 Procedes de maintenance pour voies de chemin de fer
AU55696/94A AU5569694A (en) 1993-11-24 1993-11-24 Methods of railway track maintenance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/GB1993/002419 WO1995014817A1 (fr) 1993-11-24 1993-11-24 Procedes de maintenance pour voies de chemin de fer

Publications (1)

Publication Number Publication Date
WO1995014817A1 true WO1995014817A1 (fr) 1995-06-01

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1993/002419 WO1995014817A1 (fr) 1993-11-24 1993-11-24 Procedes de maintenance pour voies de chemin de fer

Country Status (2)

Country Link
AU (1) AU5569694A (fr)
WO (1) WO1995014817A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2216441A3 (fr) * 2009-02-05 2014-09-17 Windhoff Bahn- und Anlagentechnik GmbH Système de nivèlement pour ingénierie de bande
WO2018082798A1 (fr) * 2016-11-04 2018-05-11 Plasser & Theurer Export Von Bahnbaumaschinen Gesellschaft M.B.H. Procédé et engin de pose de voie permettant de corriger des défauts de géométrie de la voie
WO2018149650A1 (fr) * 2017-02-15 2018-08-23 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Véhicule d'auscultation de voie et procédé de détection d'une assiette de voie
JP2021510778A (ja) * 2018-01-22 2021-04-30 ハーペードライ・レアール・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツング 軌道を走行可能な軌道タンピング機械による軌道位置を改善するための方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2300171A1 (fr) * 1975-02-07 1976-09-03 Plasser Bahnbaumasch Franz Dispositif formant systeme de reference pour machines de construction de voies ferrees
FR2330805A1 (fr) * 1975-11-07 1977-06-03 Matisa Materiel Ind Sa Procede pour le controle de l'etat geometrique d'une voie ferree en cours de rectification et dispositif pour la mise en oeuvre du procede
GB2115462A (en) * 1982-02-09 1983-09-07 Plasser Bahnbaumasch Franz A method of pneumatically placing bedding material using a track relevelling machine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2300171A1 (fr) * 1975-02-07 1976-09-03 Plasser Bahnbaumasch Franz Dispositif formant systeme de reference pour machines de construction de voies ferrees
FR2330805A1 (fr) * 1975-11-07 1977-06-03 Matisa Materiel Ind Sa Procede pour le controle de l'etat geometrique d'une voie ferree en cours de rectification et dispositif pour la mise en oeuvre du procede
GB2115462A (en) * 1982-02-09 1983-09-07 Plasser Bahnbaumasch Franz A method of pneumatically placing bedding material using a track relevelling machine

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2216441A3 (fr) * 2009-02-05 2014-09-17 Windhoff Bahn- und Anlagentechnik GmbH Système de nivèlement pour ingénierie de bande
WO2018082798A1 (fr) * 2016-11-04 2018-05-11 Plasser & Theurer Export Von Bahnbaumaschinen Gesellschaft M.B.H. Procédé et engin de pose de voie permettant de corriger des défauts de géométrie de la voie
EA037021B1 (ru) * 2016-11-04 2021-01-27 Плассер Энд Тойрер Экспорт Фон Банбаумашинен Гезельшафт М.Б.Х. Способ для корректировки погрешностей в положении рельсового пути
US11174598B2 (en) 2016-11-04 2021-11-16 Plasser & Theurer Export Von Bahnbaumaschinen Gesellschaft M.B.H. Method and track maintenance machine for correction of track position errors
AU2017355123B2 (en) * 2016-11-04 2022-07-28 Plasser & Theurer Export Von Bahnbaumaschinen Gesellschaft M.B.H. Method and track construction machine for correcting defective track positions
WO2018149650A1 (fr) * 2017-02-15 2018-08-23 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Véhicule d'auscultation de voie et procédé de détection d'une assiette de voie
CN110267861A (zh) * 2017-02-15 2019-09-20 普拉塞-陶伊尔铁路机械出口股份有限公司 用于记录竖直轨道位置的轨道测量车辆和方法
JP2020509273A (ja) * 2017-02-15 2020-03-26 プラッサー ウント トイラー エクスポート フォン バーンバウマシーネン ゲゼルシャフト ミット ベシュレンクテル ハフツングＰｌａｓｓｅｒ ＆ Ｔｈｅｕｒｅｒ， Ｅｘｐｏｒｔ ｖｏｎ Ｂａｈｎｂａｕｍａｓｃｈｉｎｅｎ， Ｇｅｓｅｌｌｓｃｈａｆｔ ｍ．ｂ．Ｈ． 軌道検測車および鉛直方向の軌道位置を検出する方法
EA038425B1 (ru) * 2017-02-15 2021-08-27 Плассер Энд Тойрер Экспорт Фон Банбаумашинен Гмбх Транспортное средство для измерения рельсового пути и способ измерения вертикального положения рельсового пути
CN110267861B (zh) * 2017-02-15 2021-12-14 普拉塞-陶伊尔铁路机械出口股份有限公司 用于记录竖直轨道位置的轨道测量车辆和方法
US11834081B2 (en) 2017-02-15 2023-12-05 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Track measuring vehicle and method for recording a vertical track position
JP2021510778A (ja) * 2018-01-22 2021-04-30 ハーペードライ・レアール・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツング 軌道を走行可能な軌道タンピング機械による軌道位置を改善するための方法

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