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EP0751259A1 - Procédé et dispositif pour la fabrication d'évidements dans des couches d'asphalte - Google Patents

Procédé et dispositif pour la fabrication d'évidements dans des couches d'asphalte Download PDF

Info

Publication number
EP0751259A1
EP0751259A1 EP96107626A EP96107626A EP0751259A1 EP 0751259 A1 EP0751259 A1 EP 0751259A1 EP 96107626 A EP96107626 A EP 96107626A EP 96107626 A EP96107626 A EP 96107626A EP 0751259 A1 EP0751259 A1 EP 0751259A1
Authority
EP
European Patent Office
Prior art keywords
asphalt
frame
suction
layer
asphalt layer
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.)
Granted
Application number
EP96107626A
Other languages
German (de)
English (en)
Other versions
EP0751259B1 (fr
Inventor
Willi Dietrich
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.)
Kkb Knape / Kirchner Gleis-Und Tiefbau & Co Kg GmbH
Original Assignee
Kkb Knape / Kirchner Gleis-Und Tiefbau & Co Kg GmbH
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 Kkb Knape / Kirchner Gleis-Und Tiefbau & Co Kg GmbH filed Critical Kkb Knape / Kirchner Gleis-Und Tiefbau & Co Kg GmbH
Publication of EP0751259A1 publication Critical patent/EP0751259A1/fr
Application granted granted Critical
Publication of EP0751259B1 publication Critical patent/EP0751259B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • E01B37/00—Making, maintaining, renewing, or taking-up the ballastway or the track, not provided for in a single one of groups E01B27/00 - E01B35/00
    • 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
    • E01B29/06—Transporting, laying, removing or renewing sleepers

Definitions

  • the present invention relates to a method and a device for producing recesses in asphalt layers, in particular in asphalt layers of a ballastless superstructure construction for railways, in which an asphalt layer is applied to a lower base layer, on which rail sleepers are mounted.
  • a corresponding device for the production of such recesses has a loosening device for loosening asphalt within the area provided for the recess.
  • ballast-free upper structures for railroads have been used in recent years, in which an asphalt layer is applied and compacted on a lower support layer, on which the rail sleepers are then mounted.
  • anchoring stones are incorporated or cast into the asphalt layer, which protrude from the surface of the asphalt layer and which engage in corresponding recesses on the underside of the rail sleepers in order to firmly and permanently anchor them.
  • slots corresponding to the contour of the cutout are usually cut into the asphalt layer and then the asphalt is loosened and removed with compressed air chisels or the like within the cut area.
  • This method is also relatively complex and has the disadvantage that the recesses could only be made in simple polygonal shapes, usually with a rectangular or square cross section.
  • the entire asphalt is also highly compacted along the edge of the recess, but the method places high demands on the accuracy in the production of the recesses and in cutting the slots, so that a corresponding anchoring projection really engages in the recess.
  • the present invention has for its object to provide a method and a corresponding device with the features mentioned above, which allow the creation of recesses in asphalt layers in a very simple, quick and cost-saving manner.
  • the object on which the invention is based is achieved in that a frame is worked into the asphalt layer at the location of the recess provided during or shortly after the application of the asphalt layer, the frame essentially having the shape of the recess provided, and that the asphalt, which is still warm within the frame, is loosened and extracted by a suction device.
  • the method according to the invention differs from the conventional method above all in that the asphalt material is removed while it is still warm, not hardened and, in order to make this possible at all, a frame is worked into the asphalt, the shape and dimensions of which correspond to the desired recess .
  • the frame could be left in the recess and in this case the internal dimensions of the frame would have to correspond to the desired recess.
  • the frame can also be removed from the recess and in this case, of course, the external dimensions of the frame or the part of the frame penetrating into the asphalt must correspond to the desired dimensions of the recess.
  • the asphalt is loosened within the frame by shaking the frame into the (still warm) asphalt layer.
  • a frame is placed on the still warm and preferably already compacted asphalt layer and shaken into the asphalt layer by vibrations or hammer blows.
  • the asphalt located within the frame is vibrated in such a way that it gives way to the suction of a suction device when a sufficient negative pressure is generated above the asphalt layer within the frame.
  • the jogging process also has the particular advantage that the granular asphalt material on the outer circumference of the frame is further compacted and consolidated.
  • an embodiment of the method according to the invention is preferred in which the extracted material is returned to an asphalt material bucket for further use in the production of further sections of the asphalt layer.
  • the loosened asphalt lumps had to be disposed of as waste material.
  • the object on which the invention is based is achieved in that a suction device for the loosened asphalt material is provided.
  • Suction devices were previously unknown when removing dissolved asphalt material in asphalt layers and would not offer any particular advantage if the cutouts were subsequently made in the hardened asphalt layer.
  • the negative pressure to be achieved with a suction device alone is sufficient to raise the asphalt layer within the frame, which breaks in the process and is removed from the intended one by the suction device Recess is removed.
  • the loosening device is a vibrating device for a frame, the dimensions of which correspond to the recess provided.
  • the vibrating device sets the asphalt layer around the frame and especially within the frame in strong oscillations and vibrations, so that it only needs a little support from the vacuum generated by the suction device to lift the asphalt surface within the frame from its base and to remove.
  • the frame which has been shaken with the aid of the device according to the invention, has an outwardly flanged edge which lies on the outer edge of the recess provided and thus holds the asphalt layer around the recess and even compresses it , to which the displacement in the lateral direction alone contributes when the frame is shaken.
  • the suction device is only put into operation briefly when the vibrated frame has pierced the asphalt layer or the outer frame flange lies on the surface of the asphalt layer.
  • An embodiment of the invention is particularly preferred in which a suction hood is provided, the cross section of which covers the surface of the recess and the lower edge of which can be placed on the vibrated frame.
  • This suction hood then only generates the desired negative pressure over the surface of the recess provided and can then tear away the loosened, still warm asphalt from this area.
  • suction hood is connected to a flexible pipe or hose line that can compensate for any relative movements between the suction hood and a suction unit.
  • An embodiment of the invention is particularly preferred in which the suction hood is connected to a storage bucket for asphalt material via a pipeline or via the flexible hose line.
  • the extracted warm asphalt material can be used for further purposes in the manufacture of the asphalt surface.
  • guide elements are expediently provided for a frame to be jogged and / or also for the suction device or its suction hood. The main purpose of these guide elements is to arrange the frame and the suction device exactly at the positions, where the recesses are to be made.
  • a particularly preferred embodiment of the device is one in which the suction hood, preferably together with a vibrating device, is suspended from a sled, which in turn hangs longitudinally on a rail, this rail being behind the compaction screed of the ballast paver along the working direction of the asphalt paver and extends in its upper area, the flexible suction hose on the suction hood compensating for relative movements of the carriage along the rail and with respect to the other parts of the asphalt paver and the parts of the suction device mounted thereon.
  • suction hood is suspended or integrated into the vibrating device for vibrating the frame via spring and / or damping elements.
  • the asphalt paver 10 which largely has a conventional structure.
  • the asphalt paver consists of a tracked vehicle with chain tracks that are relatively far apart, between which the asphalt layer is applied to a lower support layer.
  • the asphalt paver 10 has a storage bucket 5, as well as devices (not recognizable here) arranged between the chain drives for evenly applying one Asphalt layer on the underlying base layer.
  • This asphalt layer is then compacted with a compaction screed 11 following the chain drive.
  • the compaction screed 11 can in particular also have a vibrating mechanism for firmly vibrating the asphalt layer 3.
  • the asphalt paver 10 generally works continuously, that is to say it moves slowly to the left in the working direction, the emptying storage bucket 5 being constantly refilled by corresponding vehicles which either drive close to the asphalt paver 10 or next to the same.
  • a device for producing recesses in the asphalt layer 3 can be seen as additional elements attached to the rear end of the asphalt paver 10.
  • a vibrating device 6 with an integrated suction device 4 is provided, which is shown in detail in FIG.
  • the device essentially consists of a vibrating hammer 6 'with a vibrating frame or frame 6' '.
  • a suction hood 7 is integrated, which has a suction nozzle to which a flexible hose 8 is connected, which is connected to a suction unit 15.
  • the suction hood 7 is connected to the vibrating frame 6 ′′ via springs 14 and damping elements 14 ′.
  • the entire vibrating device 6, including the suction device 4, is suspended via a cable 18 and a slide 12 on a rail 13 which extends at the rear end of the asphalt paver 10 in its longitudinal direction and which is fastened to the structure 16 of the asphalt paver 10.
  • guide elements 9 are attached, which laterally surround the nozzle of the suction hood 7 and thus guide the suction hood 7 and indirectly also the vibrating device 6 laterally.
  • the recesses are made exactly in the middle of the asphalt track, that is to say exactly in the middle between the caterpillar tracks of the asphalt paver 10, but if necessary, the guide elements 9 could also be moved laterally in order, if necessary, to make recesses asymmetrically to the width of the asphalt track.
  • the frame 1 can either be a rectangular frame or can also be a frame with a circular wall.
  • the frame cross section or the wall cross section of the frame is angled twice into a Z shape.
  • the frame 1 consists of the actual the vertical frame part 21 producing the recess 2, a horizontally extending flange part 22 and an outer edge 23 which finally extends vertically again.
  • the frame part producing the actual recess 2 consists only of the vertical wall section 21.
  • the flange part 22 is intended to be a good one To ensure power transmission from the vibrating device 6 to the frame 1, a flange-like vibrating foot 17 of the vibrating frame 6 ′′ also coming into contact with the flange part 22 of the frame 1.
  • the Z-shaped, double angling of the wall of the frame 1 gives the frame a particularly high stability, so that by the vigorous shaking of the frame while pressing the flange 17 on the flange part 22 of the frame, the inner wall part 21 of the frame relatively easily in the hot asphalt can be pressed.
  • the underside of the flange part 22 of the frame 1 lies on the edge of the recess 2 provided and thus holds the asphalt layer very well around the recess to be provided.
  • the edges of the recess 2 still experience compression due to the radial displacement of the asphalt material by the wall section 21 of the frame 2.
  • the vibrating movements of the vibrating frame 6 ′′ are generated by the vibrating hammer 6 ′, which generally has an eccentric or a vibrating piston.
  • the entire device is suspended by a cable pulling device 18 on a carriage 12 which can be moved along the rail 13 in the longitudinal direction of the device. With the aid of the cable pulling device 18, the vibrating device 6 and the parts of the suction device 4 integrated therein are lifted when a recess 2 is made.
  • the frame 1 initially remains in this recess and is only subsequently removed, for example from the frame 20.
  • the device is then brought into the desired position over the next frame 1, around it to shake.
  • guide rails 9 are attached to the asphalt paver 10 behind the compaction screed or on the structure of the asphalt paver in the area of the vibrating and suction device, which guide the suction hood 7 and the vibrating frame 6 ′′ in the lateral direction.
  • these guide elements can also be used to correctly align the frames 1 to be shaken beforehand by arranging appropriate devices for the alignment and feeding of the frames 1 on the guide elements 9.
  • the carriage 12 When a frame 1 is vibrated, the carriage 12 is moved forward in the working direction of the asphalt paver 10 and positioned over the next frame already arranged on the asphalt. The vibrating device is then lowered and this further frame 1 is vibrated into the asphalt layer 3. During this process, the asphalt paver 10 continues to move in the working direction, the vibrating device 6 with the suction hood 7 remaining stationary over the frame 1 to be vibrated, so that the carriage 12 moves backwards along the rail 13 in the working direction.
  • the flexible hose line 8 ensures that the relative movements in question between the parts of the suction device permanently attached to the asphalt paver, such as the suction unit 15, and the suction hood 7 are possible or compensated for.
  • the extracted asphalt material is again fed into the material bucket 5 of the asphalt paver 10 through the flexible line 8 and the suction unit 15 via a pipe 8 '.
  • the material taken out of the recesses 2 is available for the further production of the asphalt layer and does not need to be disposed of.
  • the entire asphalt paver is controlled from one or more work platforms 19, a separate operating option for the device for producing the recesses being expediently provided.
  • the device as a whole is expediently designed such that it can also be retrofitted to a conventional asphalt paver 10.
  • FIG. 2 In the view according to FIG. 2 from above, only the rear part with the device for producing the cutouts 2 can be seen. On the left edge of the picture you can still see the suction unit 15, which is connected to the suction hood 7 via the pipeline 8 'and a flexible hose 8' (not visible here).
  • the frame 1 is elongated rectangular and the inner wall 21, the outer wall 23 and the intermediate flange part 22 of the frame 1 can be seen in FIG. 2.
  • a working platform 19 ' runs from both sides of the vibrating and suction device which can be operated from the relevant elements, in particular the cable pulling device 18 and the slide 12 can be actuated or controlled from there.
  • FIG. 3 essentially the same elements can be seen again in a rear view of the asphalt paver 10.
  • recesses 2 can be produced in a freshly produced asphalt surface relatively quickly and with little energy and cost.
  • asphalt material is also saved, since the material removed from the recesses can be reused while still warm.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Machines (AREA)
  • Road Paving Structures (AREA)
  • Laminated Bodies (AREA)
  • Working-Up Tar And Pitch (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
EP96107626A 1995-06-28 1996-05-14 Procédé et dispositif pour la fabrication d'évidements dans des couches d'asphalte Expired - Lifetime EP0751259B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19523503A DE19523503A1 (de) 1995-06-28 1995-06-28 Verfahren und Vorrichtung zum Herstellen von Aussparungen in Asphaltschichten
DE19523503 1995-06-28

Publications (2)

Publication Number Publication Date
EP0751259A1 true EP0751259A1 (fr) 1997-01-02
EP0751259B1 EP0751259B1 (fr) 2001-08-16

Family

ID=7765476

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96107626A Expired - Lifetime EP0751259B1 (fr) 1995-06-28 1996-05-14 Procédé et dispositif pour la fabrication d'évidements dans des couches d'asphalte

Country Status (4)

Country Link
EP (1) EP0751259B1 (fr)
AT (1) ATE204350T1 (fr)
DE (2) DE19523503A1 (fr)
ES (1) ES2171204T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111335234A (zh) * 2020-03-10 2020-06-26 中南林业科技大学 一种多孔沥青路面空隙恢复的方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1302702A (fr) * 1969-01-10 1973-01-10
WO1990002844A1 (fr) * 1988-09-15 1990-03-22 Isles Raymond C Appareil de reparation de chaussees
US5333969A (en) * 1993-03-19 1994-08-02 Blaha James R Automated pavement repair vehicle
DE4430967A1 (de) * 1994-08-31 1996-03-07 Xaver Riebel Bauunternehmung G Schienenlagerung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1302702A (fr) * 1969-01-10 1973-01-10
WO1990002844A1 (fr) * 1988-09-15 1990-03-22 Isles Raymond C Appareil de reparation de chaussees
US5333969A (en) * 1993-03-19 1994-08-02 Blaha James R Automated pavement repair vehicle
DE4430967A1 (de) * 1994-08-31 1996-03-07 Xaver Riebel Bauunternehmung G Schienenlagerung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111335234A (zh) * 2020-03-10 2020-06-26 中南林业科技大学 一种多孔沥青路面空隙恢复的方法

Also Published As

Publication number Publication date
DE59607486D1 (de) 2001-09-20
EP0751259B1 (fr) 2001-08-16
ATE204350T1 (de) 2001-09-15
ES2171204T3 (es) 2002-09-01
DE19523503A1 (de) 1997-01-02

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