EP0356311B1 - Verfahren und Vorrichtung zum Bearbeiten einer Bodenfläche, insbesondere zum Bekleiden einer Strasse - Google Patents

Verfahren und Vorrichtung zum Bearbeiten einer Bodenfläche, insbesondere zum Bekleiden einer Strasse Download PDF

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Publication number
EP0356311B1
EP0356311B1 EP89402278A EP89402278A EP0356311B1 EP 0356311 B1 EP0356311 B1 EP 0356311B1 EP 89402278 A EP89402278 A EP 89402278A EP 89402278 A EP89402278 A EP 89402278A EP 0356311 B1 EP0356311 B1 EP 0356311B1
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EP
European Patent Office
Prior art keywords
tool
machine
bridge
ground
worked
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Expired - Lifetime
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EP89402278A
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English (en)
French (fr)
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EP0356311A1 (de
Inventor
Alain Chaize
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Individual
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Individual
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Priority to AT89402278T priority Critical patent/ATE83019T1/de
Publication of EP0356311A1 publication Critical patent/EP0356311A1/de
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/004—Devices for guiding or controlling the machines along a predetermined path
    • E01C19/008—Devices for guiding or controlling the machines along a predetermined path by reference lines placed along the road, e.g. wires co-operating with feeler elements
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/22—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for consolidating or finishing laid-down unset materials
    • E01C19/30—Tamping or vibrating apparatus other than rollers ; Devices for ramming individual paving elements
    • E01C19/34—Power-driven rammers or tampers, e.g. air-hammer impacted shoes for ramming stone-sett paving; Hand-actuated ramming or tamping machines, e.g. tampers with manually hoisted dropping weight
    • E01C19/40—Power-driven rammers or tampers, e.g. air-hammer impacted shoes for ramming stone-sett paving; Hand-actuated ramming or tamping machines, e.g. tampers with manually hoisted dropping weight adapted to impart a smooth finish to the paving, e.g. tamping or vibrating finishers
    • E01C19/407—Power-driven rammers or tampers, e.g. air-hammer impacted shoes for ramming stone-sett paving; Hand-actuated ramming or tamping machines, e.g. tampers with manually hoisted dropping weight adapted to impart a smooth finish to the paving, e.g. tamping or vibrating finishers with elements or parts partly or fully immersed in or penetrating into the material to act thereon, e.g. immersed vibrators or vibrating parts, kneading tampers, spaders
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S37/00—Excavating
    • Y10S37/907—Automatic leveling excavators

Definitions

  • the present invention relates to a method for opening a floor surface, in particular for lining a roadway with a concrete coating of bitumen or cement.
  • the present invention also relates to a machine designed for this purpose.
  • Sliding formwork machines are known, such as those described for example by RAY and CHARONNAT on pages 98 to 132 of the Liaison Bulletin of the Laboratory of Bridges and Roads n ° 95 - May, June 1968 reference 2231. These machines are intended for coating a pavement with a concrete, bitumen or cement coating. They include a frame which rests and advances on the unpaved ground by means of two or four tracks. The support members on the ground reserve between them a transverse space in which the chassis carries a sliding formwork, that is to say two lateral forms forming with a top extrusion table a tunnel through which the coating is extruded .
  • the frame On the site, there are two sides of the path provided for the machine, two wires defining a reference surface to which the surface of the finished covering must be parallel.
  • the frame carries wire followers, each of which detects the position of a point of the frame relative to the reference surface. Depending on this detection, the height position of different points of the frame relative to the support means on the ground is adjusted by jacks in a direction such that the lower surface of the extrusion table, the trajectory of which defines the profile of the pavement carried out, ie parallel to the reference surface and at a determined distance from the latter.
  • the pavement produced has as smooth a profile as possible. It is therefore important to minimize the influence on the extrusion table of the movements of the frame when it is adjusted in height with respect to the reference surface. This is why, in known machines, the extrusion tunnel is located between the support means on the ground, in the vicinity of the center of gravity of the machine. Under these conditions, the coating produced necessarily has a width less than the free width between the support members on the ground, generally tracks.
  • CH - A - 498 981 is a machine of the type indicated above, of the four-track type, the structure being articulated around a horizontal transverse axis positioned between the front tracks and the rear tracks.
  • An anterior frame rests on the rough ground by the front tracks.
  • a chassis-bridge is articulated to the frame around the horizontal transverse axis and rests on the rough ground by the rear tracks.
  • Tools are mounted transversely under the axle chassis between the front tracks and the rear tracks.
  • Various adjustment means 7, 26 are used to correctly position the tools in height despite the unevenness of the raw soil.
  • the rear support means are supported on either side of the worked surface produced.
  • the working width of the machine is therefore less than its overall width.
  • this machine differs little in principle from a rigid chassis machine. Parasitic movements can come from the front frame, which rests on the rough ground, as well as from the rear tracks, which also rest against the rough ground.
  • a machine for depositing a constant coating layer which is therefore devoid of means for directly or indirectly adjusting the position of the tool relative to a reference surface.
  • the machine comprises (FIGS. 3 and 4) a front frame resting on the rough ground, a chassis-bridge supporting a tool and the rear end of which rests by rollers on the worked surface, the width of which can thus be greater than the width of support on the floor of the machine.
  • DE -B- 1 049 413 proposes to produce the worked surface in three parallel strips, the central strip being produced by a tool substantially located in the axis of pitch of the frame before the machine, so to minimize the impact of the machine pitch on the position of this tool in the vertical plane. It is further provided that the rear support roller of the bridge chassis rolls on the central strip of the worked surface, that is to say the strip having the least risk of defect. Two lateral tools are also provided in an offset position towards the rear to produce two lateral covering strips, on either side of the central strip. The chassis-bridge therefore positions the two lateral tools independently of the defects that the two lateral bands may have, and consequently, these two lateral bands 13 themselves have fewer defects.
  • the aim of the present invention is thus to propose a method and a device for producing a very good quality worked ground surface over a width which can be significantly greater than the free width between the support means, such as tracks, on unworked soil.
  • the height is adjusted at least indirectly to make its trajectory substantially independent of the unworked ground, the risk of seeing defects appear on the worked surface such as those mentioned in DE-B - 1,049,413 east greatly reduced, and above all the probable magnitude of such a defect is also very small.
  • the level regulation filters the faults and lets pass at most only very attenuated balances. Thanks to the chassis-bridge, these disturbances occurring at the level of the front frame reach the tool only with an amplitude substantially divided by two (lever effect around an axis passing through the support means distributed over the worked surface). The risks that such a defect creates successive echoes due to the crossing by the support means distributed over the worked floor themselves become negligible, taking into account in particular the very small possible amplitude of these defects, and the fact that the support is distributed.
  • the resistance encountered by the tool during its work creates a more or less intense ascending force on the bridge chassis depending on the working conditions encountered by the tool during the progression of the machine. If the upward force is intense, it risks raising the rear end of the bridge chassis and despite the height adjustment of the means supporting at least indirectly the tool, the latter risks being positioned erratically and producing a defect . If on the contrary the upward force is weak, the rear end of the chassis-bridge will be supported more strongly on the worked surface, which risks damaging it. It is in order to eliminate these risks that, according to the invention, the pressure exerted by the .mobile support means is also regulated distributed over the worked surface. The adjustment of the support pressure at the rear end of the bridge chassis also makes it possible to compensate for the variations in support pressure which are likely to be induced when the means which at least indirectly support the tool are adjusted in height. .
  • the result obtained thanks to the invention is better than that obtained with DE-B- 1 049 413 because it reduces both the risk of significant fault and the risk of successive echoes of a fault, and eliminates the longitudinal joints between three strips of worked soil.
  • the result obtained thanks to the invention is also better than that obtained by the technique according to CH-A- 498 981 since, according to the invention, the rear end of the chassis-bridge rests on the very even, worked ground. , and not on rough ground, which improves the stability of the tool's trajectory, and also because the working width allowed by the invention is significantly greater.
  • the invention does not require having a suitable unworked strip of soil on either side of the roadway to be produced.
  • the machine for opening a ground surface comprises a frame, resting in a mobile manner on a region of the ground not worked by means of support means on rough ground, a chassis-bridge, one front end of which is supported by the frame by means of an articulation with an axis transverse to the median longitudinal plane of the machine, and one rear end of which is provided with movable support means distributed over the surface worked, a tool mounted under the chassis-bridge and comprising a posterior transverse end situated behind the support means on bare ground, and is characterized in that it also comprises means for adjusting the height of the means supporting at least indirectly the tool so that it follows a path substantially independent of the irregularities of said region of the unworked soil, and means for adjusting the pressure exerted on the worked surface by the support means distributed mobile.
  • the machine for coating a roadway with bitumen concrete or cement comprises a frame 1 resting on the unpaved ground 5 by means of two lateral drive tracks 2.
  • the frame 1 is connected to the tracks 2 by four jacks 3 provided for adjusting the height position of the frame 1 relative to the tracks 2 to compensate for the inequalities encountered by the tracks 2 during their progression on the rough ground 5.
  • raw soil is meant the soil not coated or not yet coated by the machine.
  • each cylinder 3 is associated with a probe 6 which follows the wire 4 located on the same side of the machine as the cylinder 3 considered and which transmits to control means of the cylinder 3 information relating to the height position of the frame 1 to the right of the jack 3 with respect to said wire 4.
  • the two tracks define between them a free transverse distance in which the frame 1 carries, substantially in contact with the raw ground, two anterior lateral forms 7 (Figures 2 and 3) intended to receive between them, in front of the frame 1, the share of supply means such as trucks or conveyor belts, the concrete 8 intended to form the coating.
  • Each of the front side forms 7 is adjacent to one of the tracks 2.
  • a distribution screw 9 Figure 2 of transverse horizontal axis driven by a motor 11 via a transmission means 12. In known manner , the rotation of the screw 9 around its axis causes an approximate equalization of the level of concrete 8 over the free width between the anterior forms 7.
  • each front formwork 7 is connected to a rear side formwork 13 by means of a transverse formwork 14.
  • the free distance between the rear side formworks 13 is greater than the free distance between the tracks 2, and even greater than the overall width of the machine in line with the tracks 2, probes 6 not included.
  • a rear distribution device 16 comprising two transverse screws 17 rotating in opposite directions, aligned with each other. Each of the screws 17 is driven by a respective motor 18 fixed to the respective side formwork 13.
  • a transverse pre-equalization bar 19 Downstream of the screws 17, relative to the direction of movement of the concrete through the machine, there is provided a transverse pre-equalization bar 19, followed downstream by a vibrating device 21.
  • the bar pre-equalization 19 is adjustable in height by means of a jack 22.
  • FIG. 1 also shows that the screws 17, the bar 19 and the vibrator device 21 are supported directly by the frame 1.
  • an extrusion table 23 extends transversely between the rear lateral formworks 13.
  • the active lower surface 24 of the extrusion table 23, and in particular its rear transverse edge 26 are located behind the tracks 2 and extend over a width much greater than the free width transversely between the tracks 2.
  • the structure of the machine comprises, in addition to the frame 1, a chassis-bridge 27 essentially comprising two longitudinal beams 28 placed at equal distance on either side of the median longitudinal plane P of the machine, and one connected to the 'other, near their rear end, by a spacer 29 articulated at each end.
  • the two beams 28 are articulated to the frame 1 along a common axis XX, by means of two yokes 31.
  • the axis XX is perpendicular to the plane P.
  • the yokes 31 are located on the top of the frame 1, and the beams 28 extend, in their anterior region, above the frame 1.
  • the chassis-bridge 27 From its articulation by means of the yokes 31, the chassis-bridge 27 extends towards the rear and it is supported at its rear end by two air cushions 32 each mounted at a lower end of a welded leg 33 under the rear end of one of the beams 28.
  • the air cushions 32 are supplied with compressed air by means not shown.
  • each beam 28 is such that the cushions 32 are located behind the extrusion table 23.
  • the distance between each cushion 32 and the median longitudinal plane P of the machine (FIG. 2) is less than the half-width of the extrusion table 23 so that, in service, the two air cushions 32 bear on the upper surface 39 of the covering produced by the machine.
  • each beam 28 carries on its side opposite to the other beam 28 a tubular guide of vertical axis 34 in which is slidably engaged a column 36 whose base is fixed rigidly to the upper face of the extrusion table 23.
  • each column 36 is coupled to the end of the movable rod 37 of a jack 38 for adjusting the height of the extrusion table 23.
  • the table 23 is substantially located at equal distance D from a vertical plane passing through the axis X-X and from a vertical plane passing through the air cushions 32.
  • the air cushions 32 do not exert on the worked surface 39 a pressure capable of reaching or exceeding the minimum pressure from which the worked surface 39 would be deformed. But it is also important that this pressure is not zero. A zero pressure would mean that the reaction undergone by the extrusion table 23, reaction directed vertically upwards, exceeds the forces of gravity exerted on the table 23. In other words, the table 23 would be lifted under the pressure concrete under it. Given these two imperatives, it has been determined according to the invention that the pressure exerted by the air cushions 32 on the surface 39 should remain between 1 to 5 N / cm2 (100 and 500 g / cm2) approximately.
  • each air cushion 32 is equipped with a pressure detector 41.
  • the pressure is a function of the load supported by the air cushion. For example, when the load increases, the air cushion gets closer to the ground, which reduces its peripheral leakage rate and increases the pressure drop caused by this leak. As a result, the pressure increases until it balances the new load. The air cushion then stabilizes at this new altitude for which the pressure exerted by the compressed air inside its chamber balances the load to be supported.
  • a movable ballast 42 is mounted in a movable manner along each of the beams 28.
  • each ballast 42 is constituted by a carriage rolling on the upper surface of the beam by means of rollers 43.
  • the ballast 42 carries on each side of the beam 28 associated with a lateral guide lug 44, which in turn carries an anti-detachment wheel 46 bearing under the upper wing of the beam 28, which in the example is a beam in I.
  • a belt 47 bypassing an output pulley 48 of a servo-motor 49 and a return pulley 51 is hooked by its two ends 52 to two opposite faces of the ballast 42.
  • the strand of the belt 47 which is continuous between the pulleys 49 and 51 (the upper strand in FIG.
  • the device according to the invention further comprises means for detecting the position of the tool with respect to at least one reference surface.
  • these means comprise feelers 54 (FIG. 2) each cooperating with one of the wires 4, the reference surface therefore being that defined by the wires 4, which on either side of the road to be produced, are arranged at equal height above the theoretical plane of the surface 39.
  • the surface 39 of the pavement produced is also used as a reference surface, and more particularly two regions of this surface located in the vicinity of the lateral edges 56 of the surface 39 and at a certain distance behind the extrusion table 23, by example three meters behind table 23.
  • the machine comprises two devices 57 known as "drag rules" comprising a rule 58, one front end of which is connected to the rear face of the extrusion table by a traction cable 59 (FIG. 1 ) parallel to the surface 39.
  • Each end of the rule 58 rests on the surface 39 by a pad 61.
  • Each rule 58 carries an emitter 62 of electromagnetic ray 63 which may be a UV, X or laser ray. The position of each detector 62 is precisely adjusted so that the ray 63 is emitted parallel to the surface 39 as detected by the two associated pads 61, and at a well-determined height above the surface 39 thus detected.
  • the rear face of the extrusion table 23 carries, opposite each emitter 62, a detector 64 close to one of the lateral ends of the table.
  • the sensitive surface 66 of the detector 64 is subdivided into vertically staggered zones. These are for example photoelectric cells staggered vertically.
  • Each detector 64 emits an output signal constituted for example by a current whose intensity is a function of the altitude of the photoelectric cell which is struck by the radius 63.
  • the signals emitted by the detector 64 and by the probe 54 which also provides a current whose intensity is a function of the relative height of the corresponding end of the table 23 relative to the wire 4 neighbor, are used to adjust the height position of said end of the table 23, thanks to the jack 38 located on the same side of the plane P.
  • the signal from the output 67 associated with the probe 54 and the signal from the output 68 of the detector 64 located on the same side of the plane P, are added with a weighting if necessary. , in an adder circuit 69.
  • the outgoing signal is amplified by means of an amplifier 71.
  • the output 72 of the amplifier 71 is used to control a proportional solenoid valve 73 in turn controlling the supply of the jack 38 located in the same side of plane P.
  • the detection carried out by reference to the surface 39 acts as a damper with regard to the corrections controlled by reference to the wires 4.
  • the movement of the tool 23 to correct its position will very quickly cause a height signal from the detectors 64, which refer to the section too low, a signal which will slow the subsequent rise of the tool 23 under the control of the probes 54.
  • the chassis-bridge 27 is designed to allow its two beams 28 to pivot independently of one another around the axis XX in a certain relative angular movement of the order for example of about 2 cm at the right of the extrusion table 23. This is allowed in particular by the articulated mounting of the spacer 29.
  • the columns 36 have a slight lateral clearance in the guides 34. This limited independence of the beams 28 relative to one another the other allows the pressure in each cushion 32 and the height of each end of the tool 23 to be adjusted independently.
  • the machine further comprises, behind the hinge axis XX, two jacks 74 each interposed between the frame 1 and a respective one of the beams 28.
  • the jacks 74 are provided to support the chassis-bridge 27 without it takes support on its air cushions 32. This can be necessary at the start of construction, when there is not yet an adequate surface behind the machine. This may still be necessary when, for example following an incident, the pressure in the air cushions 32 is insufficient to support the bridge chassis 27. In this case, the actuation of the jacks 74 is automatic to avoid deterioration the surface 39. Finally, the jacks 74 are used during transport of the machine.
  • a motor 76 of the machine mounted on the frame 1, drives the tracks 2.
  • the frame 1 is self-positioning in height thanks to the feelers 6 and to the jacks 3.
  • the extrusion table 23 is located halfway between the axis XX and the air cushions 32.
  • the axis XX being carried by the frame 1 stabilized in height, only undergoes from the frame 1 the weak vertical movements which could not be filtered by the self-positioning device 3, 4, 6.
  • the pitching movements of the frame 1 are filtered by the joint XX and are therefore not transmitted in the form of oscillations amplified with tool 23.
  • the chassis 27 rests on the worked surface 39.
  • the only oscillations to which this end of the bridge chassis can be subjected are due to possible defects in the surface 39 and to possible vertical movements of the air cushions 32 relative to on the surface 39.
  • These two types of disturbances are of very small amplitude.
  • the tool 23 is therefore suspended midway between two support lines (joint XX and air cushion 32) none of which is exposed to significant disturbances.
  • each disturbance is only transmitted with an amplitude divided by two to the tool 23.
  • any error in the position of the tool 23 is detected by the probes 54 and / or by the detectors 64 and the position of the tool is corrected by means of the jacks 38.
  • the quality of uniformity of the worked surface 39 this is further improved, which in turn improves the quality of the support provided to the bridge chassis 27 by the air cushions 32.
  • the invention could be applied to other types of tool, for example surface cutters.
  • the height adjustment of the tool could be carried out by adjusting the height of the chassis-bridge 27 with respect to the air cushions 32 or with respect to the frame 1 (height adjustment of the axis X-X).
  • the frame rests on the tracks 2 without means of self-positioning in height, the only position detection being made on the tool, the tool self-positioning by reference to marks constituted by the wires 4 and / or by spokes 63.
  • the frame 1 includes detectors such as the probes 6, but that the frame 1 is not self-positioned in height relative to the tracks 2, the information coming from the probes being used to auto-position the tool, for example using the jacks 38.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Bridges Or Land Bridges (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Road Paving Machines (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
  • Lining And Supports For Tunnels (AREA)
  • Road Repair (AREA)
  • Road Paving Structures (AREA)

Claims (24)

  1. Verfahren zur Behandlung einer Bodenoberfläche, mittels einer Maschine die entlang der zu bearbeitenden Oberfläche bewegt wird, wobei diese Maschine trägt ein Werkzeug, das im Kontakt mit der Oberfläche ist, sowie Auflegemittel (2) auf rohem Boden, die in Fahrtrichtung vor einem transversalen hinteren Ende (26) des Werkzeugs (23) angerordnet sind, und wobei das Werkzeug während der Arbeit unter eine Chassisbrücke liegt, deren eines vorderes Ende von den Auflagemitteln (2) auf dem rohen Boden über ein Drehgelenk (31) mit einer zur Ebene der longitudinalen Mittellinie (P) der Maschine transversalen Achse gelagert ist, und deren hinteres Ende auf der bearbeiteten Oberfläche (39) durch beweglichen verteilten Auflagemittel mit einem Druck sich abstützt, der ausreichend schwach zur Vermeidung einer wesentlichen Veränderung der bearbeiteten Oberfläche (39) ist, dadurch gekennzeichnet, dass die Höhe einer das Werkzeug wenigstens indirekt lagernden Einrichtung (3, 38) derart geregelt wird, dass es einem Weg folgt, der im wesentlichen unabhängig von Unregelmässigkteiten eines unbearbeiteten Gebiets (5) des Bodens ist, und dass während der Bearbeitung der durch das hinteres Ende der Chassisbrücke (27) auf der bearbeiteten Oberfläche (39) ausgeübte Druck eingestellt wird.
  2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass der genannte Druck durch Verschiebung eines Ballastgewichts (42) entlang der Chassisbrücke (27) eingestellt wird.
  3. Verfahren nach Anspruch 2, dadurch gekennzeichnet, dass der gennante Druck detektiert und die Position des Ballastgewichts (42) kontinuierlich derart geregelt wird, dass der Druck konstant gehalten wird.
  4. Verfahren nach Anspruch 3, dadurch gekennzeichnet, daß das hintere Ende der Chassisbrücke auf der bearbeiteten Oberfläche (39) mit Hilfe wenigstens eines Luftkissens (32) abgestützt wird und daß zur Messung des Auflagedrucks der in dem Luftkissen (32) herrschende Druck detektiert wird.
  5. Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß als Werkzeug ein Extrusionstisch (23) verwendet wird, der einen Teil einer mobilen Verschalung in Form eines Tunnels (23, 13) bildet, dem ein Beschichtungsmaterial vom Typ Zement-oder Bitumenbeton (8) zugeführt wird.
  6. Verfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß ein Werkzeug (23) verwendet wird, dessen Nutzbreite größer ist als die freie Breite zwischen den Auflagemitteln (2) auf dem rohen Boden.
  7. Verfahren nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß der auf den Boden durch die beweglichen, verteilten Auflagemittel (32) ausgeübte Druck ungefähr 1 bis 5 N/cm² (100 bis 500 g/cm²) eingestellt wird.
  8. Verfahren nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß in Bezug auf eine ideale Oberfläche, der die Oberfläche des bearbeiteten Bodens (39) parallel folgen soll, einerseits die Höhenposition eines Gestells (1), das das Drehgelenk (31) trägt und mit dem die Auflagemittel (2) auf dem rohen Boden verbunden sind, und andererseits die Höhenposition des Werkzeugs (23) geregelt wird.
  9. Verfahren nach Aspruch 8, dadurch gekennzeichnet, daß die Höhenposition des Werkzeugs (23) relativ zur Chassisbrücke (27) eingestellt wird.
  10. Verfahren nach Anspruch 8 oder 9, dadurch gekennzeichnet, daß die Bezugsoberfläche mit Hilfe von stationär und longitudinal auf beiden Seiten des Fahrwegs der Maschine angeordneten Fäden (4) definiert wird und daß man mit dem Werkzeug (23) verbundene Taster (54) mit den Fäden (4) zusammenwirken läßt.
  11. Maschine zur Behandlung einer Bodenoberfläche, insbesondere zur Durchführung des Verfahrens nach einem der Ansprüche 1 bis 10, mit einem Gestell (1), das sich mittels Auflagemitteln (2) für die Auflage auf rauhem Boden auf einem nicht bearbeiteten Gebiet (5) des Bodens bewegbar abstützt, einer Chassisbrücke (27), deren eines vorderes Ende auf dem Gestell (1) über ein Drehgelenk (31) mit einer zur Ebene der longitudinalen Mittellinie (P) der Maschine transversalen Achse gelagert ist und deren hinteres Ende mit bewegbaren, verteilten Auflagemitteln (32) auf der bearbeiteten Oberfläche versehen ist, und mit einem unter der Chassisbrücke (27) angebrachten Werkzeug, das ein transversales hinteres Ende (26) aufweist, das hinter den Auflagemitteln auf dem rohen Boden angeordnet ist, dadurch gekennzeichnet, daß sie ferner eine Einrichtung (3, 38) zur Einstellung der Höhe der Mittel (1, 36), die wenigstens indirekt das Werkzeug (23) so lagern, daß sich dieses auf einer im wesentlichen von Unebenheiten des nicht bearbeiteten Bodengebiets (s) unabhangigen weg bewegt, und Einrichtungen (42 bis 44, 46 bis 49) zur Regelung des durch die beweglichen verteilten Auflagemittel (32) auf die bearbeitete Oberfläche (39) ausgeübten Drucks aufweist.
  12. Maschine nach Anspruch 11, dadurch gekennzeichnet, daß die Einrichtung zur Einstellung des Drucks wenigstens ein Ballastgewicht (42) aufweist, das entlang der Chassisbrücke (27) bewegbar ist.
  13. Maschine nach Anspruch 11 oder 12, dadurch gekennzeichnet, daß das hintere transversale Ende (26) des Werkzeugs (23) eine Nutzbreite aufweist, die größer ist als der transversale freie bestand zwischen den Auflagemitteln (2) auf dem rohen Boden.
  14. Maschine nach einem der Ansprüche 11 bis 13, gekennzeichnet durch eine Einrichtung (54, 56) zur Detektion der Lage des Werkzeugs (23) relativ zu einer Referenzoberfläche, wobei die Detektionseinrichtung ein Steuersignal auf wenigstens einen Teil (38) einer Einrichtung zur Einstellung der Höhe der Werkzeugs (23) leitet.
  15. Maschine nach Anspruch 14, dadurch gekennzeichnet, daß die Detektionseinrichtung Taster (54) aufweist, die zur Abtastung von stationär entlang beiden Seiten der zu bearbeitenden Oberfläche angeordneten Markierungen (4) bestimmt sind.
  16. Maschine nach Anspruch 14 oder 15, dadurch gekennzeichnet, daß die Detektionseinrichtung eine Einrichtung (57, 64) zur Detektion der Position des Werkzeugs (23) relativ zu einem Gebiet der bearbeiteten Oberfläche (39) aufweist, das mit bestand hinter dem Werkzeug (23) liegt.
  17. Maschine nach Anspruch 16, dadurch gekennzeichnet, daß die Einrichtung zur Detektion der Position des Werkzeugs relativ zu einem Gebiet der bearbeiteten Oberfläche (39) eine durch die Maschine gezogene und im Kontakt mit dem genannten Gebiet der bearbeiteten Oberfläche (39) befindliche Einrichtung und eine Einrichtung (62, 64) zur Detektion der relativen Position des Werkzeugs (23) zu der gezogenen Einrichtung (57) aufweist.
  18. Maschine nach Anspruch 17, dadurch gekennzeichnet, daß die Einrichtung zur Detektion der relativen Position einen von der gezogenen Einrichtung (57) getragenen Aussender (62) von Strahlen (63) und eine von dem Werkzeug (23) getragenen Detektionsoberfläche (66) aufweist, die die Höhenposition, auf der die Strahlen (63) auftreffen, detektiert.
  19. Maschine nach einem der Ansprüche 14 bis 18, dadurch gekennzeichnet, daß die Einrichtung zur Einstellung der Höhe des Werkzeugs eine Einrichtung (3) zur Einstellung der Höhe des Gestells (1) relativ zu den Auflagemitteln (2) auf dem rohen Boden und eine Einrichtung (38) aufweist, die die Geometrie der Maschine zwischen dem Drehgelenk (XX) und den beweglichen, verteilten Auflagemitteln (32) modifiziert, wobei die Detektionseinrichtung (54, 64) für die Position des Werkzeugs ein Steuersignal für die Einrichtung (38) zur Modifizierung der Geometrie liefert.
  20. Maschine nach Anspruch 19, dadurch gekennzeichnet, daß die Einrichtung zur Modifizierung der Geometrie der Maschine eine Einrichtung zur Einstellung der Position des Werkzeugs (23) relativ zur Chassisbrücke (27) ist.
  21. Maschine nach einem der Ansprüche 11 bis 20, dadurch gekennzeichnet, daß das Werkzeug ein Extrusionstisch (23) ist, der mit zwei Seitenverschalungen (13) einen Extrusionstunnel bildet, der in Fahrtrichtung hinter einer Zuführ- und Verteileinrichtung (7, 9, 16, 19) für ein Beschichtungsmaterial wie Zement-oder Bitumenbeton angeordnet ist, wobei die Seitenverschalungen (13) und die Zuführungs- und Verteilungseinrichtung (7, 9, 16, 19) an dem Gestell (1) befestigt sind.
  22. Maschine nach einem der Ansprüche 11 bis 21, gekennzeichnet durch eine Einrichtung (74) zum Lagern der Chassisbrücke (27) relativ zum Gestell (1), wenn die Chassisbrücke (27) nicht auf der bearbeiteten Oberfläche (39) aufliegt, insbesondere zu Beginn der Bearbeitung.
  23. Maschine nach einem der Ansprüche 11 bis 22, dadurch gekennzeichnet, daß die beweglichen, verteilten Auflagemittel (32) wenigstens ein Luftkissen aufweisen.
  24. Maschine nach einem der Ansprüche 11 bis 23, dadurch gekennzeichnet, daß die Chassisbrücke (27) zwei longitudinale Elemente (28) aufweist, die in Grenzen unabhängig voneinander um eine Drehachse (XX) winkelmäßig verstellbar sind und die jeder das Werkzeug (23) auf einer zugehörigen Seite der longitudinalen Mittelebene (P) der Maschine tragen.
EP89402278A 1988-08-18 1989-08-11 Verfahren und Vorrichtung zum Bearbeiten einer Bodenfläche, insbesondere zum Bekleiden einer Strasse Expired - Lifetime EP0356311B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89402278T ATE83019T1 (de) 1988-08-18 1989-08-11 Verfahren und vorrichtung zum bearbeiten einer bodenflaeche, insbesondere zum bekleiden einer strasse.

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FR8810998 1988-08-18
FR8810998A FR2635543B1 (fr) 1988-08-18 1988-08-18 Procede et engins pour ouvrer une surface de sol, notamment pour revetir une chaussee

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EP0356311A1 EP0356311A1 (de) 1990-02-28
EP0356311B1 true EP0356311B1 (de) 1992-12-02

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US (1) US5009544A (de)
EP (1) EP0356311B1 (de)
AT (1) ATE83019T1 (de)
DE (1) DE68903706T2 (de)
ES (1) ES2036820T3 (de)
FR (1) FR2635543B1 (de)
GR (1) GR3007085T3 (de)

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US5971657A (en) * 1997-02-12 1999-10-26 Medico, Jr.; John J. Paving machine for forming porous pavement construction
US6183160B1 (en) 1998-03-31 2001-02-06 Delaware Capital Formation, Inc. Screeding apparatus and method incorporating oscillating attachment
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Also Published As

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DE68903706T2 (de) 1993-07-01
EP0356311A1 (de) 1990-02-28
FR2635543B1 (fr) 1991-10-18
ATE83019T1 (de) 1992-12-15
DE68903706D1 (de) 1993-01-14
GR3007085T3 (de) 1993-07-30
US5009544A (en) 1991-04-23
ES2036820T3 (es) 1993-06-01
FR2635543A1 (fr) 1990-02-23

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