EP0283286A2 - Appareil pour enlever une couche à la surface du sol - Google Patents

Appareil pour enlever une couche à la surface du sol Download PDF

Info

Publication number
EP0283286A2
EP0283286A2 EP88302340A EP88302340A EP0283286A2 EP 0283286 A2 EP0283286 A2 EP 0283286A2 EP 88302340 A EP88302340 A EP 88302340A EP 88302340 A EP88302340 A EP 88302340A EP 0283286 A2 EP0283286 A2 EP 0283286A2
Authority
EP
European Patent Office
Prior art keywords
surface layer
vehicle
frame
cutting device
ground
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Withdrawn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
EP88302340A
Other languages
German (de)
English (en)
Other versions
EP0283286A3 (fr
Inventor
Gerald Richard Oldham Pentith
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.)
Anderson Group PLC
Original Assignee
Anderson Strathclyde PLC
Anderson Group PLC
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
Priority claimed from GB878706619A external-priority patent/GB8706619D0/en
Priority claimed from GB878711113A external-priority patent/GB8711113D0/en
Application filed by Anderson Strathclyde PLC, Anderson Group PLC filed Critical Anderson Strathclyde PLC
Publication of EP0283286A2 publication Critical patent/EP0283286A2/fr
Publication of EP0283286A3 publication Critical patent/EP0283286A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/18—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels
    • E02F3/188—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels with the axis being horizontal and transverse to the direction of travel
    • 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
    • E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
    • E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
    • E01C23/08—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for roughening or patterning; for removing the surface down to a predetermined depth high spots or material bonded to the surface, e.g. markings; for maintaining earth roads, clay courts or like surfaces by means of surface working tools, e.g. scarifiers, levelling blades
    • E01C23/085—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for roughening or patterning; for removing the surface down to a predetermined depth high spots or material bonded to the surface, e.g. markings; for maintaining earth roads, clay courts or like surfaces by means of surface working tools, e.g. scarifiers, levelling blades using power-driven tools, e.g. vibratory tools
    • E01C23/088—Rotary tools, e.g. milling drums
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/18—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels
    • E02F3/20—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels with tools that only loosen the material, i.e. mill-type wheels
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F5/00—Dredgers or soil-shifting machines for special purposes
    • 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
    • E01C2301/00—Machine characteristics, parts or accessories not otherwise provided for
    • E01C2301/50—Methods or devices for preventing dust by spraying or sucking

Definitions

  • This invention relates to apparatus for removing a surface layer from the ground and is especially concerned with apparatus for removing the surface layer from ground having a hard surface layer, for example roads having a hard surface layer of bituminous material or concrete which may commonly be between one and two feet (about 30 and 60 cms) thick.
  • the milling cutter rotates about a horizontal axis, where the depth can be varied but considerable manouvering of the vehicle may be required to cut round metal manhole covers, or in heavily built up areas.
  • the hard surface layer has commonly been removed by using pneumatic or hydraulic percussive tools followed by digging the softer material beneath the hard surface layer to form the trench. It has also been proposed to use larger so-called “back-acting" diggers to remove the hard surface layer as well as to dig the softer material but this technique is destructive of the machine and a digging bucket is commonly replaced by a large hydraulic percussive pick to break up the hard surface layer before removing it using a digger. Commonly two such back-acting machines are used, the first with a hydraulic pick to remove the hard surface layer followed by a second machine with a digging bucket to remove the spoil and dig away the softer material to the required depth for the trench.
  • the invention provides apparatus for removing a surface layer from the ground comprising a vehicle having support means mounted on a frame of the vehicle, a rotary cutting device carried by the support means, and moving means for urging the device into and out of operative engagement with the surface layer of a road on which the vehicle is standing and for moving the device in engagement with the surface layer relative to the frame of the vehicle along the surface layer of the road whereby to remove the surface layer.
  • one existing road planer comprises a vehicle 20 movable on tracks 50 and provided with a rotary cutter 39 mounted between front and rear ones of the tracks and extending across the width of the planer.
  • the planer shown in Figures 6 and 7 is moved along the surface to be planed with its cutter 39 in engagement with the surface and rotating.
  • the cutter is traversed along the surface and the cutter 39 removes a surface layer of the road or other surface being planed.
  • expensive load control systems for the tracks are necessary to ensure that the cutter 39 is traversed with the necessary speed and control.
  • Figures 1 to 3 show a first apparatus embodying the invention suitable for use in planing the surfaces of roads, for example.
  • the first illustrative apparatus comprises a vehicle 20 having wheels 40 (although it may if desired instead be provided with suitable tracks) by which the vehicle 20 is moved along the surface to be planed to a desired operating position.
  • the vehicle 20 of the first illustrative apparatus has a frame 22 on which is mounted support means 24 for a cutting device 32.
  • the support means 24 of the first illustrative apparatus comprises a frame 26 provided, at its extremity remote from its attachment to the vehicle frame 22, with support legs 30.
  • the vehicle 20 is also provided with support legs 28 secured to the vehicle frame 22 remote from the support frame 26.
  • the legs 28, 30 are provided with hydraulic rams (not shown) conveniently operated from the power supply of the vehicle 20 by which ground-engaging pads 29, 31 may be lowered into firm engagement with the surface 18 of ground to be operated upon, for example the hard surface layer of a road.
  • the ground-engaging pads 29, 31 may likewise be retracted by the hydraulic rams away from the surface 18 when the vehicle 20 is to be moved on its wheels.
  • the hydraulic rams urge the ground-engaging pads 29, 31 into engagement with the ground with sufficient force to lift the wheels 40 from the ground so that the whole weight of the first illustrative apparatus is placed on the pads 29, 31.
  • the pads 29, 31 are provided with a series of spikes which penetrate into the hard surface 18 (of tarmacadam, concrete or the like) and act as dowels to maintain the first illustrative apparatus in position over the portion of the surface 18 to be operated upon. As the whole of the weight of the apparatus is dowelled to be surface 18, reaction from the cutting device 32 as it carries out a milling or planing operation on the surface 18 is firmly taken. If the spiked pads 29, 31 prove to be insufficient to retain the apparatus in position adequately, additional dowels (not shown) carried by the frames 22, 26 may be inserted into holes drilled in the surface 18 adjacent each pad 29, 31.
  • the support means 24 of the first illustrative apparatus further comprises a carriage 34 by which the cutting device 32 is carried.
  • the carriage 34 is mounted for movement in the direction indicated by the arrows A along the frame 26.
  • a cutter housing 36 is mounted on the carriage 34 for movement transversely of the frame 26 in the direction indicated by the arrows B in Figures 1 to 3 of the drawings.
  • the cutter housing 36 may also be rotated about an axis Y perpendicular to the plane of the frame 26 and generally perpendicular to the surface 18 to be operated upon.
  • a suitable cutter for example a rotating milling cutter 38, is mounted for rotation about an axis X parallel with the plane of the frame 26.
  • the cutter housing 36 may be pivoted about the axis Y to move the cutter 38 as indicated by the arrows C from a position (shown in Figure 2) in which its axis of rotation X extends transversely of the frame 26 to a position in which it is shown in Figure 3 where its axis X of rotation extends generally lengthwise of the frame 26.
  • the axis of rotation X lies generally parallel with the surface 18.
  • the cutter 38 is intended to rotate as indicated by the arrow D about its axis X.
  • the vehicle 20 is driven to an appropriate site and positioned to position the frame 26 over a portion of the surface 18 which it is wished to remove.
  • the hydraulic rams are then operated to jack the vehicle up on its legs 28, 30 as shown in Figure 1 and the cutter 38 is set in operation.
  • the cutter 38 is then lowered in the direction indicated by the arrows E into operative engagement with the surface 18 (as indicated in Figure 1) for example by means of a suitable hydraulic ram (not shown) and then moved lengthwise of the frame 26 as indicated by the arrows A to remove the portion of the surface 18 which is to be removed.
  • the cutter may also be traversed in the direction of the arrow B to change its operative position within the frame 26 and to mill a series of parallel lengthwise strips beneath the position of the frame 26. Furthermore, should a manhole cover or other obstruction be present in the region to be milled, the cutter may be rotated as indicated by the arrows C to the position in which it is shown in Figure 3 of the drawings and moved in the direction of arrows B to operate transversely of the frame 26. When the material has been moved from the surface 18 as required, the pads 29, 31 are retracted by the rams and the wheels 40 thus lowered into engagement with the surface so that the vehicle 20 can be driven to a further location in which it is to be operated. The sequence is repeated until the whole area to be treated has been operated on.
  • the construction of the first illustrative apparatus is relatively simple and cheap and does not require any expensive system of load control for wheels etc.
  • the cutting device 32 can be traversed both lengthwise and transversely of the frame 26 by simple hydraulic rams (not shown).
  • the first illustrative apparatus may be of substantial dimensions.
  • the cutting device may be moved transversely of the frame 26 through a distance of between 1.2 and 2.2 metres allowing the apparatus to operate around obstructions without resorting to secondary operations for example the use of pneumatic picks or the like.
  • the depth of cut of the cutter may also be varied as required.
  • the illustrative apparatus As the illustrative apparatus is stationary when in operation, only the cutting device 32 moving, it is only necessary to provide protection, for example in the form of rails (not shown) to prevent animals or children becoming enmeshed in the cutter.
  • the protective means for the cutting device 32 is suitably designed so that the operator can see the position of the cutter 38 itself and thus accurately control its position when milling round obstructions.
  • the illustrative apparatus may, if desired, be provided with a radio control system for controlling the movement of the cutter 38 so that the operator is able to closely observe the operation of the cutter whilst controlling it.
  • the first illustrative apparatus comprises a system (not shown) for removing debris and dust from the region of the cutter 38.
  • a suitable system can comprise pneumatic means for removing debris and dust, the pneumatic means transferring debris etc. to a further conveyor system or to an auger system by which it is transferred into a bunker which retains dust and coarse debris but from which air is vented through a filter system.
  • the bunker is mounted on the vehicle 20 and means is provided for tipping it into a lorry to empty the bunker as required.
  • the capacity of the bunker is sufficient to hold material milled from a surface in thirty to forty minutes of continuous operation.
  • the first illustrative apparatus is especially suitable for use in built-up areas as it is able to work with less movement of the whole vehicle relative to the road surface than the heretofore known systems of road planing. Furthermore, the first illustrative apparatus is relatively simple, cheap and efficient by comparison with some known apparatus.
  • the second illustrative apparatus is suitable for use in excavating trenches.
  • This second apparatus comprises a vehicle 20 having a vehicle frame 22, support means 24 mounted on the frame 22 of the vehicle 20, the support means 24 carrying a rotary cutting device 32, being provided with moving means for urging the device 32 into and out of operative engagement with the surface 18 of a road on which the vehicle 20 is standing and for moving the device 32, in the direction of the arrows A, in engagement with the surface layer 18 relative to the body of the vehicle 20 along the surface 18 whereby to remove the surface layer.
  • the support means 24 of the second illustrative apparatus comprises an articulated support arm 44 pivotally mounted on the frame 22 of the vehicle 20. At an outer extremity of the articulated support arm 44 a support frame 26 is mounted.
  • Cutting device 32 comprises a cutter housing 36 mounted on the frame 26 for movement lengthwise of the frame.
  • a suitable rotary cutter 38 for example a rotating milling cutter, is mounted for rotation in the housing 36 about an axis X extending transversely of the frame 26 generally parallel with the frame and with the surface 18.
  • the articulated arm 44 may be operated by hydraulic rams (not shown) in known manner to lower the frame 26 towards a surface 18 to be operated upon until the legs 42 engage the surface 18 and thereafter to urge the legs 42 (which may be provided with spikes to penetrate the surface 18, as pads 29, 31) firmly into engagement with the surface 18.
  • the frame 26 When in this position, the frame 26 extends generally parallel with the surface 18.
  • the legs 42 may be provided with means for adjusting their height (not shown), conveniently hydraulic rams.
  • the second apparatus also comprises legs 28 mounted on the frame 22 at a position remote from the support frame 26.
  • the legs 28 are provided with hydraulic rams (not shown) by which ground-engaging pads (not shown) of the legs 28 may be urged into engagement with the surface 18.
  • a substantial amount of the weight of the illustrative apparatus may be supported by the legs 42 and the legs 28 thereby maintaining the apparatus in position on the surface to be operated upon.
  • the illustrative apparatus further comprises a second articulated arm 46 mounted on the vehicle frame 22 suitably mounted on the back gate of a back acting vehicle 20 in known manner.
  • the second articulated arm 46 has, at its outer extremity, a digging device 48 which may be operated by the operator of the vehicle 20.
  • the articulated arm 46 may be mounted on a slide (not shown) by which the arm may be moved transversely of the vehicle.
  • the frame 26 may be mounted for movement transversely of the vehicle 20 or, alternatively, the cutter housing 36 may be mounted for movement transversely of the frame 26 in a manner similar to that described above with reference to the first illustrative apparatus, although in excavating trenches, provision for such transverse movement will not normally be necessary.
  • the vehicle 20 is first driven to the position at which it is required to excavate a trench with both articulated arms 44, 46 in raised positions.
  • the articulated arm 44 is then operated to lower the legs 42 into engagement with the surface 18 in a position where the surface is to be cut, with the cutter 38 or the cutting device rotating, the downward motion of the arm 44 urging the cutting device 38 into the hard surface layer to remove an initial portion of the surface layer.
  • the legs 28 are also urged into engagement with the surface 18 so that the apparatus is substantially supported by the legs 42, 28.
  • the milling cutter 38 is then moved lengthwise of the frame by hydraulic rams or any other suitable moving means (not shown) in the direction of the arrows A to remove the hard surface layer.
  • the extent to which the cutter 38 is forced into the surface 18 is sufficient to remove the whole of the surface layer at the region where the trench is to be excavated.
  • the cutter 38 may be forced into the surface layer using a hydraulic ram mounted on the frame 26 to force the housing 36 downwardly, or if the legs 42 are of adjustable height, by using controlled retraction of the legs 42 and suitable downward force applied by the arm 44.
  • the vehicle 20 After cutting the initial portion of the trench in this way, the vehicle 20 is moved, having first lifted the legs 28 and raised the arm 44 and the frame 26 is repositioned with the cutter 38 at a rear end portion of the frame 26 adjacent the vehicle frame 22 and in the hole which had previously been cut by the first operation of the cutter 38: the legs 28 are then again lowered and the cutter traversed in the direction of the arrow A along the frame 26 to the far end, cutting a further length of the hard surface layer to define the trench. Further successive cuts of the hard surface layer are made in this fashion.
  • the wheels 40 of the vehicle 20 will suitably straddle the region of the surface 18 which has been removed and after a sufficient length of the hard surface has been removed, the partially excavated trench will be revealed at the rear of the vehicle.
  • the digging device 48 may then be operated to remove the softer material beneath the hard surface layer and to dig out the trench, the operator alternating between removal of a further amount of the hard surface layer using the cutting device and excavating of an equal length of softer material at the rear of the vehicle.
  • the rotary cutting device 32 is lowered to urge the cutter 38 through the hard surface layer and the cutter 38 moves lengthwise of the support frame 26: this initial sumping cut is sufficient to remove the hard surface material and may need to be of a depth of between 0.3 and 0.6 metres for example.
  • Modified trenching machines otherwise generally similar to the second illustrative apparatus may have both the cutter device 32 and the digging device 48 mounted at the same end portion of the vehicle frame 22 on a transverse slide means, if desired.
  • the cutting device or the digging device as required may be pushed e.g. by a hydraulic ram along the slide to a central operating position, the one of the devices not in use being parked at a remote end of the slide out of the way.
  • the hard surface layer is first cut away with the cutting device in the central operative position and the cutting device is then traversed along the slide from the central position to an out of the way position being replaced by the digging device 48 by which soft material is excavated from the region where the hard surface layer has been removed by the operation of the cutting device.
  • the apparatus is moved on its wheels or tracks to the next operating position to dig out the next length of the trench to be operated upon.
  • a single apparatus can be used to excavate a trench through ground having a hard surface layer with a softer underlayer, for example a road. The operation can be carried more efficiently in this way.
  • part of the trench may first be marked out by using a pair of high speed diamond saws to cut slots defining opposite sides of the trench, the cutter 38 operating between these slots to remove the remainder of the hard surface layer between the slots.
  • the high speed diamond saws may also be mounted on the vehicle frame conveniently being movable along the support frame 26.
  • the operative position of the cutting device is external lengthwise of the wheel base of the vehicle, i.e. forwardly and rearwardly of the vehicle 20.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Road Repair (AREA)
EP19880302340 1987-03-20 1988-03-17 Appareil pour enlever une couche à la surface du sol Withdrawn EP0283286A3 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB8706619 1987-03-20
GB878706619A GB8706619D0 (en) 1987-03-20 1987-03-20 Trenching machine techniques
GB8711113 1987-05-11
GB878711113A GB8711113D0 (en) 1987-05-11 1987-05-11 Road planning & milling machinery

Publications (2)

Publication Number Publication Date
EP0283286A2 true EP0283286A2 (fr) 1988-09-21
EP0283286A3 EP0283286A3 (fr) 1990-09-12

Family

ID=26292034

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19880302340 Withdrawn EP0283286A3 (fr) 1987-03-20 1988-03-17 Appareil pour enlever une couche à la surface du sol

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EP (1) EP0283286A3 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4986604A (en) * 1989-02-07 1991-01-22 Target Products Inc. Roadway grooving apparatus
EP0675227A1 (fr) * 1994-03-30 1995-10-04 Speno International S.A. Machine pour la meulage de sections localisées d'un rail de chemin de fer, notamment des soudures d'abouts de rails ou autres défauts ponctuels
US5492431A (en) * 1994-03-01 1996-02-20 Concrete Textures, Inc. Methods for cutting aligned sets of slots in pavement
AU672480B2 (en) * 1994-04-05 1996-10-03 Speno International S.A. Machine for the grinding of local portions of a railway rail, particularly of the welding of two neighbouring rails or other punctual defects
EP0752501A1 (fr) * 1995-07-04 1997-01-08 Ohkita Engineering Co., Ltd. Excavateur de route à élément de coupe cylindrique
US7837276B2 (en) 2006-07-06 2010-11-23 Diamond Surface, Inc. Close proximity grinder
CN101666066B (zh) * 2009-09-30 2011-07-20 归立发 路面平整度修复机
WO2012148981A3 (fr) * 2011-04-29 2013-02-07 Clark Equipment Company Appareil de découpe hydraulique de dalles embarqué sur un véhicule
GB2533489A (en) * 2014-12-19 2016-06-22 Ulc Robotics Inc System and method for utility maintenance
CN110387802A (zh) * 2019-08-05 2019-10-29 上海道基环保科技有限公司 一种道路水泥路面现场全破碎方法以及路面破碎机
US11208772B2 (en) 2016-01-21 2021-12-28 Surface Preparation Technologies, Llc Reduced volume sonic noise alert pattern grinder and method

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE572877A (fr) *
US2935981A (en) * 1957-07-19 1960-05-10 William F Middlestadt Joint cutting machine
FR1590110A (fr) * 1968-04-10 1970-04-13
US3575307A (en) * 1967-11-13 1971-04-20 Poclain Sa Earthworking machines
US3649071A (en) * 1970-03-13 1972-03-14 Donald E Graff Method and apparatus for cutting curbstones and the like
GB1456503A (en) * 1972-10-03 1976-11-24 Cement & Concrete Ass Vehicle-mounted hardened concrete grooving machine
GB2012339A (en) * 1977-09-21 1979-07-25 Andrews R D R Road Plane
US4174184A (en) * 1976-04-30 1979-11-13 Amerace Corporation Snowplowable pavement marker and method and apparatus for installing same
US4262966A (en) * 1979-04-25 1981-04-21 Allied Steel & Tractor Products, Inc. Road surface removing machine
EP0142277A1 (fr) * 1983-10-14 1985-05-22 Econ Group Limited Equipement pour le fraisage des chaussées
US4531883A (en) * 1982-12-08 1985-07-30 Wain-Roy, Inc. Backhoe stabilizer system

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE572877A (fr) *
US2935981A (en) * 1957-07-19 1960-05-10 William F Middlestadt Joint cutting machine
US3575307A (en) * 1967-11-13 1971-04-20 Poclain Sa Earthworking machines
FR1590110A (fr) * 1968-04-10 1970-04-13
US3649071A (en) * 1970-03-13 1972-03-14 Donald E Graff Method and apparatus for cutting curbstones and the like
GB1456503A (en) * 1972-10-03 1976-11-24 Cement & Concrete Ass Vehicle-mounted hardened concrete grooving machine
US4174184A (en) * 1976-04-30 1979-11-13 Amerace Corporation Snowplowable pavement marker and method and apparatus for installing same
GB2012339A (en) * 1977-09-21 1979-07-25 Andrews R D R Road Plane
US4262966A (en) * 1979-04-25 1981-04-21 Allied Steel & Tractor Products, Inc. Road surface removing machine
US4531883A (en) * 1982-12-08 1985-07-30 Wain-Roy, Inc. Backhoe stabilizer system
EP0142277A1 (fr) * 1983-10-14 1985-05-22 Econ Group Limited Equipement pour le fraisage des chaussées

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
HIGHWAYS+ PUBLIC WORKS, vol. 53, no. 1897, January 1985, pages 14, 15, 16, 32; J.A. SIDES: "Spreading the cost of asphalt pavement maintenance" L: "JBC excavator, mentioned in above EP-A-0 142 277 *

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4986604A (en) * 1989-02-07 1991-01-22 Target Products Inc. Roadway grooving apparatus
US5492431A (en) * 1994-03-01 1996-02-20 Concrete Textures, Inc. Methods for cutting aligned sets of slots in pavement
EP0675227A1 (fr) * 1994-03-30 1995-10-04 Speno International S.A. Machine pour la meulage de sections localisées d'un rail de chemin de fer, notamment des soudures d'abouts de rails ou autres défauts ponctuels
US5525098A (en) * 1994-03-30 1996-06-11 Speno International Sa Machine for molding localized sections of a railroad rail, particularly for welding ends of rails or other local defects
AU672480B2 (en) * 1994-04-05 1996-10-03 Speno International S.A. Machine for the grinding of local portions of a railway rail, particularly of the welding of two neighbouring rails or other punctual defects
EP0752501A1 (fr) * 1995-07-04 1997-01-08 Ohkita Engineering Co., Ltd. Excavateur de route à élément de coupe cylindrique
US8025342B2 (en) 2006-07-06 2011-09-27 Diamond Surface, Inc. Close proximity grinder
US7837276B2 (en) 2006-07-06 2010-11-23 Diamond Surface, Inc. Close proximity grinder
US9259849B2 (en) 2007-05-24 2016-02-16 Clark Equipment Company Vehicle-mounted hydraulic slab cutter
CN101666066B (zh) * 2009-09-30 2011-07-20 归立发 路面平整度修复机
WO2012148981A3 (fr) * 2011-04-29 2013-02-07 Clark Equipment Company Appareil de découpe hydraulique de dalles embarqué sur un véhicule
GB2533489A (en) * 2014-12-19 2016-06-22 Ulc Robotics Inc System and method for utility maintenance
US9945092B2 (en) 2014-12-19 2018-04-17 Ulc Robotics, Inc. System and method for utility maintenance
US11208772B2 (en) 2016-01-21 2021-12-28 Surface Preparation Technologies, Llc Reduced volume sonic noise alert pattern grinder and method
CN110387802A (zh) * 2019-08-05 2019-10-29 上海道基环保科技有限公司 一种道路水泥路面现场全破碎方法以及路面破碎机
CN110387802B (zh) * 2019-08-05 2021-09-10 上海道基环保科技有限公司 一种道路水泥路面现场全破碎方法以及路面破碎机

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Publication number Publication date
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