EP1275781A2 - Machine et méthode pour replacer le ballast - Google Patents

Machine et méthode pour replacer le ballast Download PDF

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Publication number
EP1275781A2
EP1275781A2 EP02254787A EP02254787A EP1275781A2 EP 1275781 A2 EP1275781 A2 EP 1275781A2 EP 02254787 A EP02254787 A EP 02254787A EP 02254787 A EP02254787 A EP 02254787A EP 1275781 A2 EP1275781 A2 EP 1275781A2
Authority
EP
European Patent Office
Prior art keywords
ballast
operative association
ballast material
collector
sleepers
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Withdrawn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
EP02254787A
Other languages
German (de)
English (en)
Other versions
EP1275781A3 (fr
Inventor
Ian Wallace Rees The threshing barn Bailey
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.)
NETWORK RAIL
Original Assignee
GT Railway Maintenance Ltd
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 GT Railway Maintenance Ltd filed Critical GT Railway Maintenance Ltd
Publication of EP1275781A2 publication Critical patent/EP1275781A2/fr
Publication of EP1275781A3 publication Critical patent/EP1275781A3/fr
Withdrawn legal-status Critical Current

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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
    • E01B27/00—Placing, renewing, working, cleaning, or taking-up the ballast, with or without concurrent work on the track; Devices therefor; Packing sleepers
    • E01B27/06—Renewing or cleaning the ballast in situ, with or without concurrent work on the track
    • E01B27/10—Renewing or cleaning the ballast in situ, with or without concurrent work on the track without taking-up track

Definitions

  • This invention relates to an apparatus for the continuous replacement of ballast material beneath a railway track mounted on sleepers, to a ballast replacement train incorporating such apparatus and to a method of ballast replacement by means of such apparatus.
  • ballast material beneath the sleepers of a railway track degrades over a period of time owing to the forces exerted by trains using the track. Moreover, if the ballast becomes wet (e.g. during inclement weather) it can effectively be formed into a slurry by the "pumping" action caused by movement of a train on the track. This leads to the formation of a so-called “wet-spot", necessitating the removal of the damaged ballast and replacement with fresh ballast.
  • ballast has been replaced either by physically "digging out” from the affected area or by taking up the track and sleepers before using mechanical excavators. In both such methods it is necessary to close the railway line to traffic.
  • ballast It has been proposed to provide means for replacing ballast without having to take up the track.
  • One such known means comprises a machine which grinds away the damaged ballast from beneath the sleepers and removes the grinding residue by suction to a conveyor.
  • a machine which grinds away the damaged ballast from beneath the sleepers and removes the grinding residue by suction to a conveyor.
  • such a machine is substantially ineffective due to the compacted nature of the degraded ballast encountered in the United Kingdom.
  • the present invention provides apparatus for the continuous replacement of ballast material beneath a railway track mounted on sleepers, the apparatus comprising:
  • At least said means (b), (c) and (d) are in operative association with one another.
  • At least said means (b), (c), (d) and (e) are in operative association with one another.
  • all said means (a) to (e) are in operative association with one another.
  • the collector means (c), for collecting removed ballast material and depositing it on a conveying means may comprise a rotatable member of generally circular transverse section having a plurality of collector members located about its periphery.
  • the collector means (c) may comprise a wheel having a plurality of scoops or buckets located about its periphery.
  • the collector means (c) may comprise a plurality of radiating spokes, each spoke having a scoop or a bucket located at its outermost end.
  • each scoop or bucket may be provided with a "sharpened” leading edge to facilitate collection of the removal ballast.
  • the means (a) may suitably comprise a flat rotary cutter, for example a trenching arm of the standard type available within the civil engineering industry.
  • the means (a) creates an elongate trench adjacent to and substantially parallel with one of the rails.
  • the trench will be of a depth in the range 400 to 800 mm.
  • the means (b) may suitably comprise a chain-saw in operative association with a conveyor wheel, for example a chain-saw/conveyor of the type available from Kershaw as 42-4 track undercutter.
  • the means (b) excavates ballast from beneath one or more adjacent sleepers and conveys it to the collector means (c).
  • the means (d), for conveying ballast material (received from the collector means (c)) to a disposal means may suitably comprise a conveyor belt or the like.
  • the means (d) may comprise a helical screw-conveyor (e.g. of a type known per se ).
  • the means (e), for replacing the removed ballast with fresh ballast at the point of excavation may suitably comprise one or more bottom discharge hoppers of the "self-discharge" type, which in use deliver fresh ballast directly to the rear of the cutting face by means of under-wagon conveyors.
  • Tamping and stabilisation means may additionally be provided in operative association with means (a) to (e) of the apparatus according to the present invention.
  • the present invention provides a ballast replacement train for use in the continuous replacement of ballast material beneath a railway track mounted on sleepers, the train comprising the apparatus according to the first aspect of the present invention, mounted on one or more rail-borne vehicles.
  • the train may comprise:
  • the train may further include at least one service/office wagon and at least one contingency wagon.
  • the present invention provides a method for the continuous replacement of ballast material beneath a railway track mounted on sleepers, by means of apparatus according to the first aspect of the present invention, in which the method comprises the steps of:
  • steps (b), (c) and (d) are in operative association with one another.
  • steps (b), (c), (d) and (e) are in operative association with one another.
  • steps (a) to (e) are in operative association with one another.
  • the method in accordance with the present invention may further comprise tamping and stabilisation of the fresh ballast following step (e).
  • a railway track comprises two sets of rails 10A and 10B, mounted on sleepers 11A and 11B respectively.
  • Undercutting and conveying means 13 acts, in use, to remove ballast from beneath the sleepers 11B and to convey it to the collector means 14.
  • the collector means 14 comprises a wheel provided with a plurality of scoops or buckets and rotating about its axis in the direction shown by arrows A.
  • the means 14 collects ballast from the undercutting and conveying means 13 and deposits the collected ballast on to conveyor means shown schematically at 15. The collected ballast is conveyed thereafter to one or more spoil wagons (not shown).
  • Replacement ballast material is delivered, in the direction shown schematically at 16, to the rear of the cutting face. This serves to maintain the track in a substantially level condition during ballast replacement and to minimise the loss of cant.
  • the train according to the second aspect of the present invention comprises a ballast excavation apparatus 20 of the type illustrated in Figure 1, in operative association with spoil wagons 21 and 22, ballast wagons 23 and 24 and a tamper/stabiliser 25.
  • the train is drawn by a locomotive 26 and may include a service/office wagon 27 and one or more contingency wagons 28.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
EP02254787A 2001-07-11 2002-07-09 Machine et méthode pour replacer le ballast Withdrawn EP1275781A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0116889 2001-07-11
GB0116889A GB2377468B (en) 2001-07-11 2001-07-11 Apparatus and method for ballast replacement

Publications (2)

Publication Number Publication Date
EP1275781A2 true EP1275781A2 (fr) 2003-01-15
EP1275781A3 EP1275781A3 (fr) 2004-01-28

Family

ID=9918277

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02254787A Withdrawn EP1275781A3 (fr) 2001-07-11 2002-07-09 Machine et méthode pour replacer le ballast

Country Status (2)

Country Link
EP (1) EP1275781A3 (fr)
GB (1) GB2377468B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7845098B1 (en) 2009-05-22 2010-12-07 Loram Maintenance Of Way, Inc. Rotary undercutter for rail line maintenance
CN111877060A (zh) * 2020-07-14 2020-11-03 中国铁道科学研究院集团有限公司铁道建筑研究所 一种无砟道床结构部件更换方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104928998A (zh) * 2014-03-17 2015-09-23 中国铁道科学研究院铁道建筑研究所 一种铁路道砟枕底挖掘装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3967396A (en) * 1974-09-23 1976-07-06 Canron, Inc. Undercutter with rotary trencher
US4119154A (en) * 1977-02-18 1978-10-10 Southern Railway Company Method and apparatus for treating ballast
US4563826A (en) * 1984-10-24 1986-01-14 Kershaw Manufacturing Company, Inc. Apparatus for removing ballast from beneath a railroad track
EP0303037A1 (fr) * 1987-08-04 1989-02-15 DANIELI & C. OFFICINE MECCANICHE S.p.A. Système pour charger et décharger des matériaux en continu pour opérations de réfection de lits de voie ferrée et similaire
US4858344A (en) * 1988-05-05 1989-08-22 Tamper Corp. Undercutter with rotary trencher

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4674208A (en) * 1986-03-31 1987-06-23 Kershaw Manufacturing Company, Inc. Ballast removing apparatus
US4705115A (en) * 1986-03-31 1987-11-10 Kershaw Manufacturing Company, Inc. Method and apparatus for reconditioning ballast along a railroad track

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3967396A (en) * 1974-09-23 1976-07-06 Canron, Inc. Undercutter with rotary trencher
US4119154A (en) * 1977-02-18 1978-10-10 Southern Railway Company Method and apparatus for treating ballast
US4563826A (en) * 1984-10-24 1986-01-14 Kershaw Manufacturing Company, Inc. Apparatus for removing ballast from beneath a railroad track
EP0303037A1 (fr) * 1987-08-04 1989-02-15 DANIELI & C. OFFICINE MECCANICHE S.p.A. Système pour charger et décharger des matériaux en continu pour opérations de réfection de lits de voie ferrée et similaire
US4858344A (en) * 1988-05-05 1989-08-22 Tamper Corp. Undercutter with rotary trencher

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7845098B1 (en) 2009-05-22 2010-12-07 Loram Maintenance Of Way, Inc. Rotary undercutter for rail line maintenance
US7987620B2 (en) 2009-05-22 2011-08-02 Loram Maintenance Of Way, Inc. Rotary undercutter for rail line maintenance
CN111877060A (zh) * 2020-07-14 2020-11-03 中国铁道科学研究院集团有限公司铁道建筑研究所 一种无砟道床结构部件更换方法

Also Published As

Publication number Publication date
GB2377468B (en) 2005-01-19
EP1275781A3 (fr) 2004-01-28
GB0116889D0 (en) 2001-09-05
GB2377468A (en) 2003-01-15

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