EP3591118B1 - Apparatus and method for the rehabilitation of the base of a railway line - Google Patents

Apparatus and method for the rehabilitation of the base of a railway line Download PDF

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Publication number
EP3591118B1
EP3591118B1 EP19183763.2A EP19183763A EP3591118B1 EP 3591118 B1 EP3591118 B1 EP 3591118B1 EP 19183763 A EP19183763 A EP 19183763A EP 3591118 B1 EP3591118 B1 EP 3591118B1
Authority
EP
European Patent Office
Prior art keywords
tracks
blade
horizontal layer
compact material
carriage
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.)
Active
Application number
EP19183763.2A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3591118A1 (en
Inventor
Alberto Majer
Roi Bernard
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.)
Ivecos SpA
Original Assignee
Ivecos SpA
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Publication date
Application filed by Ivecos SpA filed Critical Ivecos SpA
Priority to SI201930148T priority Critical patent/SI3591118T1/sl
Publication of EP3591118A1 publication Critical patent/EP3591118A1/en
Application granted granted Critical
Publication of EP3591118B1 publication Critical patent/EP3591118B1/en
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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
    • E01B29/00—Laying, rebuilding, or taking-up tracks; Tools or machines therefor
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B1/00—Ballastway; Other means for supporting the sleepers or the track; Drainage of the ballastway
    • E01B1/002—Ballastless track, e.g. concrete slab trackway, or with asphalt layers
    • 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
    • E01B27/04—Removing the ballast; Machines therefor, whether or not additionally adapted for taking-up ballast

Definitions

  • This invention relates to an apparatus for the rehabilitation of the base of a railway line.
  • the invention relates to an apparatus for the rehabilitation of the base of a railway line having a horizontal layer of compact material positioned below the tracks.
  • This invention also relates to a method for the rehabilitation of the base of a railway line.
  • This type of construction is used, for example, in some tunnels with a length of more than 2000 metres on European railway lines in which, also with the aim of making the tunnel suitable for use by vehicles with rubber tyres, such as rescue vehicles, the stone ballast has been eliminated.
  • a compact solid layer advantageously made of bituminous mortar, is normally interposed between the base foundation and the pre-compressed reinforced concrete platforms is normally interposed, designed to support and regularise the contact between the two above-mentioned components, as well as absorbing the stresses of the railway loads.
  • bituminous mortar is exposed to a deterioration which is sometimes even rapid.
  • the only known method for overcoming the problem of the deterioration of the bituminous mortar layer consists in removing it after removal of the railway tracks and the removal of the pre-compressed reinforced concrete platforms which overly the layer of bituminous mortar.
  • the aim of the invention is to provide an apparatus and a method for rehabilitating the base of the railway line which are able to overcome the drawbacks of the prior art.
  • a further aim of the invention is to provide an apparatus and a method for rehabilitating the base of the railway line which is able to limit the necessary intervention times.
  • Another aim of the invention is to provide an apparatus and a method for rehabilitating the base of the railway line which allows the operations to be performed at the site to be simplified.
  • the reference numeral 1 denotes in its entirety a preferred embodiment of an apparatus for rehabilitation of the base of a railway line 2, according to the invention.
  • the railway line 2 comprises a base foundation 3 made of reinforced concrete and a plurality of pre-compressed reinforced concrete platforms 4, positioned in succession on the base foundation 3.
  • the railway line 2 also comprises tracks 5 which are fixed to the above-mentioned platforms 4 by means of respective clips 6 of known type.
  • the tracks 5 extend longitudinally along a predetermined direction D1.
  • a horizontal layer 7 of compact material is interposed between the base foundation 3 and the pre-compressed reinforced concrete platforms 4.
  • the above-mentioned horizontal layer 7 of compact material has a thickness of several centimetres.
  • the material with which the horizontal layer 7 is made is normally a bituminous mortar.
  • the apparatus 1 comprises a carriage 8 slidable along the tracks 5.
  • the carriage 8 has a quadrangular frame 9 comprising two longitudinal members 10 designed to be positioned parallel to the tracks 5, and a plurality of transversal members 11 for connection to the above-mention longitudinal members 10.
  • each longitudinal member 10 has respective wheels 12 designed to engage in a rolling fashion on the upper surface 5a of the tracks 5.
  • the wheels 12 are advantageously mounted in an idle fashion on the longitudinal members 10, since the carriage 8 is designed to be moved by a further pulling vehicle, not illustrated.
  • the carriage 8 supports respective guide elements 13 designed to engage laterally with a track 5 for keeping the carriage 8 in the correct position for resting on both the tracks 5.
  • each guide element 13 has two idle rollers 14 designed to slidably engage on the flanks 5b of the track 5 as the carriage 8 moves forwards.
  • the carriage 8 is connected to an arm, not illustrated, of an operating machine designed to move on tracks.
  • the apparatus 1 comprises an operating head 15.
  • the operating head 15 is configured to at least partly remove the above-mentioned horizontal layer 7 of compact material.
  • the operating head 15 comprises, according to the invention, a central body 16 and a blade 17 emerging from the central body 16.
  • the blade 17 has a substantially flat extension.
  • the blade 17 is designed to engage with the above-mentioned horizontal layer 7 of compact material to perform a milling operation.
  • the blade 17 comprises a flat plate 18 and a chain 19 looped on the flat plate 18 and slidable along the perimeter of the plate 18.
  • the flat plate 18 represents a support and guide element for the chain 19.
  • the chain 19 is represented schematically in the form of a belt, since the individual links from which it is in reality made are not graphically reproduced.
  • the chain 19 also comprises, also not illustrated, distributed uniformly along its extension, a plurality of removable excavation teeth designed for removing the compact material with which they enter into contact during the movement of the chain 19.
  • the central body 16 of the operating head 15 is hexagonal in shape.
  • the head 15 also supports, housed inside the central body 16, a motor element 20 designed to move the chain 19 in movement around the above-mentioned plate 18.
  • the motor element 20 is configured to activate the blade 17 in its operating motion.
  • the motor unit 20 advantageously comprises a rotary hydraulic motor.
  • the hydraulic motor is supplied by pressurised oil.
  • the above-mentioned motor element 20 comprises a pinion, not illustrated, rotatable about a respective first axis A1 of rotation of the above-mentioned rotary hydraulic motor, and engaging inside the chain 19, that is, with the inner part of its links, for rotating the chain 19 about the flat plate 18.
  • the operating head 15 is pivoted on a connecting arm 21 for connecting the head 15 to the carriage 8.
  • the head 15 is pivoted on the connecting arm 21 to rotate relative to it about a second axis A2 parallel to the above-mentioned axis A1.
  • the connecting arm 21 comprises a slider 29 to which the head 15 is physically pivoted.
  • the slider 29, which is box-shaped, is slidable relative to the remaining portion of the connecting arm 21 through two cylindrical guides 30 extending along a direction D2 parallel to the above-mentioned axis A2.
  • the sliding direction D2 of the slider 29 is substantially at a right angle to a predetermined plane P tangent to the upper surface 5a of the tracks 5.
  • the sliding of the slider 29 and the operating head 15 along the direction D2 constitutes an adjustment movement for positioning the blade 17 in the correct working position of the horizontal layer 7.
  • the operating head 15 rotates about the second axis A2 to move between a non-operating position of the blade 17, illustrated in Figure 4a , wherein the chain 19 is not operatively engaged with the horizontal layer 7, and an operating position of the blade 17, visible in figure 4b , wherein the chain 19 engages in the milling of the horizontal layer 7 of compact material.
  • the blade 17 is has the relative flat plate 18 substantially parallel to the above-mentioned predetermined plane P tangent to the upper surface 5a of the tracks 5.
  • the apparatus 1 comprises a first linear hydraulic actuator 22 designed to actuate the above-mentioned rotation movement of the head 15 relative to the connecting arm 21.
  • the first hydraulic actuator 22 is supported by the slider 29 of the connecting arm 21.
  • the first linear hydraulic actuator 22 is of known type and comprises a cylinder 23 and a rod 24 which are slidably engaged and pivoted with each other, at the relative longitudinal ends, on one and on the other of the above-mentioned head 15 and connecting arm 21.
  • the first hydraulic actuator 22 defines, for the apparatus 1, actuator means for moving the blade 17 inside the horizontal layer 7 of compact material which is able to keep the blade 17 substantially parallel to the above-mentioned predetermined plane P.
  • the connecting arm 21 is in turn pivoted on a longitudinal member 10 of the carriage 8, to rotate about a third axis A3 parallel to the direction of extension of the longitudinal members 10 and, when the carriage 8 is engaged on the tracks 5, parallel also to the direction of extension D1 of the tracks 5.
  • the connecting arm 21 is movable between a first lowered operating configuration at which the blade 17 is positioned substantially parallel to the above-mentioned predetermined plane P, for removing the compact material of the horizontal layer 7, and a raised non-operating configuration at which the blade 17 is disengaged from the horizontal layer 7, for allowing an easy movement of the carriage 8 along the tracks 5.
  • the apparatus 1 comprises a second linear hydraulic actuator 25 designed to actuate the above-mentioned movement of rotation of the connecting arm 21 relative to the longitudinal member 10 of the carriage 8.
  • the second linear actuator 25 is of known type and comprises a cylinder 26 and a rod 27 which are slidably engaged and pivoted with each other, at the relative longitudinal ends, one on a crosspiece 11 of the carriage 8 and the other, by means of suitable linkages 28, on the connecting arm 21.
  • the blade 17 comprises a circular cutter 32.
  • the circular cutter 32 is mounted rotatably on an emerging plate 33 protruding from the central body 16 of the operating head 15.
  • the circular cutter 32 is designed to rotate about a fourth axis of rotation A4, parallel to the first axis of rotation A1 of the above-mentioned rotary hydraulic motor.
  • the transmission of the motion from the rotary hydraulic motor housed in the central body 16 to the circular cutter 32 is performed by means of a flexible transmission element, not illustrated, such as a chain or elastic belt.
  • the circular cutter 32 has, distributed along its circumference, a plurality of protruding portions 34 configured to remove the compact material of the horizontal layer 7 during the rotation of the circular cutter 32 about its own axis A4 of rotation.
  • the protruding portions 34 are advantageously removable to be periodically replaced when worn.
  • the apparatus 1 is used to remove, on both sides of the tracks 5, a continuous longitudinal portion 7a of the horizontal layer 7 of compact material.
  • two lateral strips of the horizontal layer 7 are removed, with a constant depth, for creating respective cavities designed to receive new resinous material.
  • This new resinous material is injected in fluid form in the space created following removal of the continuous longitudinal portions 7a, in such a way as to reconstitute, after hardening, the integrity of the horizontal layer 7 of compact material under the platforms 4.
  • the transport of the apparatus 1 is actuated by a pulling vehicle which is not illustrated.
  • the connecting arm 21 is rotated, by means of the second hydraulic actuator 25, in its first lowered operating configuration illustrated in Figure 2 , at which the blade 17 is positioned substantially parallel to the above-mentioned predetermined plane P.
  • the aim of this adjustment is to align the height of the blade 17 relative to the horizontal layer 7 of compact material to be milled.
  • the operating head 15 After reaching the desired height along the direction D2, the operating head 15 is rotated about the axis A2, by means of the first hydraulic actuator 22, in an anticlockwise direction with reference to Figure 4a .
  • the motor element 20 is activated in such a way as to operatively move the blade 17.
  • the operating position of the blade 17, shown in Figure 4b is stably defined, in which the chain 19 engages in the milling of the horizontal layer 7 of compact material.
  • the carriage 8 is advanced in the direction D1 in the direction indicated by the arrow F, so as to continue with the processing of the above-mentioned continuous longitudinal portion 7a of the horizontal layer 7 of compact material.
  • the operating head 15 After reaching the alignment between the height of the blade 17, that is, of the circular cutter 32 with the horizontal layer 7 of compact material to be milled, the operating head 15 is rotated about the axis A2, as illustrated in Figure 7 , by means of the first hydraulic actuator 22.
  • the motor unit 20 is activated in such a way as to operatively move the blade 17, that is, rotating the circular cutter 32 about the relative axis of rotation A4.
  • the carriage 8 is advanced in the direction D1 so as to continue with the processing of the continuous longitudinal portion 7a of the horizontal layer 7 of compact material.
  • the apparatus 1 achieves the preset aims and brings important advantages.
  • the main advantage linked with use of the apparatus 1 according to the invention is due to the possibility of removing the layer of compact material without the need to remove the tracks and the platforms on which the tracks are laid.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Milling Processes (AREA)
  • Working Measures On Existing Buildindgs (AREA)
EP19183763.2A 2018-07-03 2019-07-02 Apparatus and method for the rehabilitation of the base of a railway line Active EP3591118B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI201930148T SI3591118T1 (sl) 2018-07-03 2019-07-02 Naprava in postopek za obnovo podlage železniške proge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102018000006889A IT201800006889A1 (it) 2018-07-03 2018-07-03 Apparecchiatura e metodo per il risanamento del basamento di una linea ferroviaria

Publications (2)

Publication Number Publication Date
EP3591118A1 EP3591118A1 (en) 2020-01-08
EP3591118B1 true EP3591118B1 (en) 2021-10-20

Family

ID=63896496

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19183763.2A Active EP3591118B1 (en) 2018-07-03 2019-07-02 Apparatus and method for the rehabilitation of the base of a railway line

Country Status (3)

Country Link
EP (1) EP3591118B1 (it)
IT (1) IT201800006889A1 (it)
SI (1) SI3591118T1 (it)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111778786B (zh) * 2020-08-21 2021-05-14 新昌县水帘峡市政园林有限公司 一种铁路用轨枕扒砟拆卸装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3436848A (en) * 1966-05-09 1969-04-08 Mannix Intern Inc Apparatus for removing ballast from beneath a railroad track
FI92621C (fi) * 1991-11-08 1994-12-12 Matti Greus Ky Laite radan tukikerroksen poistamiseksi raidetta purkamatta
RU2092645C1 (ru) * 1996-02-29 1997-10-10 Центральное Конструкторское Бюро Тяжелых Путевых Машин Устройство для выемки балласта железнодорожного пути
JP3962150B2 (ja) * 1998-03-16 2007-08-22 東日本旅客鉄道株式会社 スラブ式軌道の補修材料及び補修方法
US7845098B1 (en) * 2009-05-22 2010-12-07 Loram Maintenance Of Way, Inc. Rotary undercutter for rail line maintenance
JP5478135B2 (ja) * 2009-07-14 2014-04-23 東日本旅客鉄道株式会社 モルタル掘削機
DE102010030334A1 (de) * 2010-06-22 2011-12-22 Ed. Züblin Ag Verfahren zur Sanierung einer Gleisanlage mit einem Schotterbett
KR20120140030A (ko) * 2011-06-20 2012-12-28 한국철도공사 철도 콘크리트도상에 위치하는 콘크리트침목유동 방지를 위한 균열보수 방법
CN202543744U (zh) * 2012-02-03 2012-11-21 中铁四局集团有限公司 轮胎式高速铁路板式无砟轨道砂浆层剔除车
CN106894301A (zh) * 2015-12-17 2017-06-27 路行（北京）科技发展有限责任公司 一种碎石道床线路施工与维护装置及轨道车

Also Published As

Publication number Publication date
EP3591118A1 (en) 2020-01-08
IT201800006889A1 (it) 2020-01-03
SI3591118T1 (sl) 2022-04-29

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