EP2251491B1 - Dispositif de fraisage et procédé de dépôt de matériau de sol - Google Patents

Dispositif de fraisage et procédé de dépôt de matériau de sol Download PDF

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Publication number
EP2251491B1
EP2251491B1 EP09006624A EP09006624A EP2251491B1 EP 2251491 B1 EP2251491 B1 EP 2251491B1 EP 09006624 A EP09006624 A EP 09006624A EP 09006624 A EP09006624 A EP 09006624A EP 2251491 B1 EP2251491 B1 EP 2251491B1
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EP
European Patent Office
Prior art keywords
cutting
milling
support
guide frame
units
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
EP09006624A
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German (de)
English (en)
Other versions
EP2251491A1 (fr
Inventor
Maximilian Arzberger
Christian Hermann
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.)
Bauer Maschinen GmbH
Original Assignee
Bauer Maschinen 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
Priority to DK09006624.2T priority Critical patent/DK2251491T3/da
Priority to ES09006624T priority patent/ES2371500T3/es
Priority to EP09006624A priority patent/EP2251491B1/fr
Priority to AT09006624T priority patent/ATE518992T1/de
Priority to PT09006624T priority patent/PT2251491E/pt
Application filed by Bauer Maschinen GmbH filed Critical Bauer Maschinen GmbH
Priority to CA2702734A priority patent/CA2702734C/fr
Priority to ZA2010/03180A priority patent/ZA201003180B/en
Publication of EP2251491A1 publication Critical patent/EP2251491A1/fr
Application granted granted Critical
Publication of EP2251491B1 publication Critical patent/EP2251491B1/fr
Active 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
    • E02F3/20—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
    • E02F3/205—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 with a pair of digging wheels, e.g. slotting machines
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00—Excavations; Bordering of excavations; Making embankments
    • E02D17/13—Foundation slots or slits; Implements for making these slots or slits
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F5/00—Dredgers or soil-shifting machines for special purposes
    • E02F5/006—Dredgers or soil-shifting machines for special purposes adapted for working ground under water not otherwise provided for

Definitions

  • the invention relates to a milling device and a method for removing soil material. Furthermore, the invention relates to a milling machine with a mast or crane frame.
  • a device of the type mentioned above has at least one cutting wheel, which is set in rotation and can be removed by which soil material.
  • a milling head, a drilling apparatus, and an apparatus and method for seabed drilling are known.
  • the drilling device described therein comprises a milling head and a pipe arranged above the milling head with a cross-section approximately corresponding to the drilling cross-section.
  • the cutting wheels are designed so that a round bore cross section is achieved.
  • EP 0 716 190 A1 discloses a slot mill with a rotationally driven abrading head operating on the undercutting principle, which is arranged on a removal arm.
  • the Abtragsarm is pivotable about an approximately horizontal, transverse to the longitudinal extent of the slot pivot axis.
  • the invention has for its object to provide a device and a method with which soil material can be removed in a simple and effective way and to great depths.
  • the object is achieved by a milling device with the features of claim 1, by a milling machine with the features of claim 9 and by a method for removing soil material with the features of claim 10.
  • the milling device is characterized in that a support and guide frame is provided, are mounted on the at least two milling units, each with at least one cutting wheel, of which at least one milling unit along a Abteufraum on the support and guide frame is movably guided, and that Method of the milling unit at least one hydraulic lifting device is arranged, which is connected on the one hand with the support and guide frame and on the other hand with the milling unit.
  • a basic idea of the invention is to use, instead of a single milling unit, a plurality of milling units, which can be lowered independently of one another in the lowering direction.
  • the at least two milling units are arranged on a common support and guide frame.
  • At least one of the milling units is slidably mounted on the support and guide frame.
  • the milling units are the same design and arranged parallel to each other.
  • all the milling units are mounted on the support and guide frame displaceable parallel to each other.
  • a first milling unit can be lowered and a first slot can be created by removing soil material.
  • a second milling unit can also be lowered, creating a second slot.
  • the two milling units are preferably arranged so close to each other that the created slots are adjacent to each other in such a way that no material remains between the slots.
  • the milling units can each be lowered by a hydraulic lifting device, preferably a hydraulic lifting cylinder.
  • the slot created first serve as a guide and abutment when creating the second slot.
  • the milling units are preferably guided in an upper and in a lower region on the support and guide frame.
  • the milling device according to the invention can be used both on land and under water.
  • the milling device is particularly suitable for the degradation of soil material, especially hard rock, such as kimberlite, under water.
  • the milling device according to the invention can be defined in particular previously determined by investigations kimberlite vents and economically and almost completely degraded without unnecessary spoil, with depths of up to 250 meters can be reached. It is also possible to reduce smaller underwater vents economically.
  • At least one underwater drive device in particular a control and driving screw, is provided on the carrying and guiding frame. If the milling device is to be moved under water to a defined milling point, an accurate adjustment by means of a mechanical guide structure is difficult, in particular in the case of an existing water flow. In particular, the adjustment may be insufficient if the mechanical guide structure is not a fixed mast or beam, but a rope or a chain on which the milling device is suspended.
  • the underwater propulsion device can basically have any known form of ship propulsion. Particularly preferred are propellers or jet engines.
  • a further preferred embodiment of the invention consists in that the at least one underwater drive device is pivotably articulated to the support and guide frame.
  • the pivotable underwater drive device enables a drive of the milling device in several directions in space.
  • a plurality of underwater drive devices, in particular control and driving screws, are arranged in different orientations and in each case pivotably on the support and guide frame. This allows a very precise positioning and alignment of the milling device can be achieved.
  • a position detection device is provided, which is coupled to the at least one underwater drive device.
  • the position detection device may be, for example, a satellite-based position determination system. But other technologies for position detection, for example by means of acceleration sensors, are conceivable.
  • the position detection device is coupled with the underwater drive device in terms of control technology and controls it.
  • the supporting and guiding frame has a guide bar extending in the lowering direction, along which at least one of the milling units is guided.
  • two guide bars are provided on the support and guide frame or are guided displaceably on the guide bar at least two milling units.
  • the guide bar preferably has an elongated shape with at least one guide rail, which is clasped by corresponding guide claws of the milling units.
  • the milling units each have a holding frame, on which a hydraulic drive means for rotationally driving the at least one cutting wheel is arranged.
  • the at least one cutting wheel is preferably arranged below the holding frame on a bearing plate and has a horizontally extending axis of rotation.
  • the cutting wheel is provided at its periphery with a plurality of cutting tools, such as cutting teeth, with which the actual milling process takes place.
  • the hydraulic drive device for example a hydraulic motor, for driving the at least one cutting wheel is preferably arranged in a lower region of the holding frame above the cutting wheels.
  • a further advantageous embodiment of the milling device is that the milling units each have two pairs of cutting wheels, wherein the Fräsradcrue parallel staggered axes of rotation and each Fräsradcru has two milling with coaxial axes of rotation.
  • Each milling unit thus comprises four cutting wheels. All cutting wheels are preferably arranged below the holding frame, wherein each pair of cutting wheels is mounted on a bearing plate. The two Milling wheels of a cutting wheel pair are arranged on different sides of the bearing plate.
  • the milling cross section of the unit formed from two pairs of cutting wheels, that is to say four cutting wheels, preferably corresponds essentially to the cross section of the holding frame arranged above the milling cutter.
  • the individual milling machines can be driven by separate drive motors. Preferably, however, a single hydraulic drive device is provided for driving all cutting wheels of a milling unit.
  • the suction device preferably comprises at least one suction box arranged in the region of the cutting wheels and at least one suction line, which is guided upwards along the holding frame.
  • the suction line is preferably guided within a limited by the support frame cross-section.
  • the milling machine according to the invention with a mast or crane frame is characterized in that a milling device according to one of claims 1 to 8 is suspended from the mast or crane frame.
  • the milling device can be guided on the mast or crane frame along a defined axis, for example a rail-like guide.
  • the milling device is suspended on at least one rope or a chain on the mast or crane frame.
  • the inventive method for removing soil material is characterized in that a support or guide frame is lowered together with two milling units attached thereto, that in a first milling step, a first milling unit lowered and soil material is reduced, and that lowered in a second milling step, a second milling unit and soil material is degraded.
  • the advantages described in connection with the milling device are achieved.
  • a good support of a milling unit to the other milling unit and thus a good support of the milling device can be achieved overall by this two-stage milling process.
  • a particularly large milling depth can be achieved in that, following the second milling step, the supporting and guiding frame is lowered and subsequently the first and second milling steps are repeated.
  • the milling device is raised, pulled out of the created slot and moved by means of an underwater drive device to a further Fräsansatzddling.
  • the milling device is moved substantially horizontally by means of the underwater drive device.
  • FIGS. 1 and 2 show an exemplary embodiment of a milling device 10 according to the invention with a support and guide frame 20 and two milling units, namely a first milling unit 30 and a second milling unit 40.
  • the support and guide frame 20 has a substantially vertically extending guide bar 24, which is formed in the illustrated embodiment as an H-shaped carrier.
  • the guide bar 24 includes four parallel to a longitudinal direction of the support and guide frame 20 extending guide rails 26. In each case two guide rails are arranged opposite one another, so that in each case a milling unit 30, 40 can be performed.
  • the milling units 30, 40 are substantially the same design and each side of the support guide frame 20 and arranged.
  • the first milling unit 30 comprises a first holding frame 36, which has a substantially parallelepipedal outer Has shape.
  • the first holding frame 36 is formed as a substantially four of the six parallelepiped outer surfaces limiting frame-like structure.
  • guide claws 37 are formed on the first support frame 36, which engage with the guide rails 26 of the guide beam 24 or clasp them.
  • the second milling unit 40 has a second holding frame 46, which essentially corresponds to the first holding frame 36.
  • a control head 12 is formed, on which a plurality of underwater drive means are arranged.
  • four subsea drive means are provided, which are designed as control and driving screws 16 and are arranged on a respective lateral side of the control head 12.
  • two opposing underwater drive means or control and driving screws 16 are arranged parallel to each other.
  • a mounting head 14 is arranged, which is pivotally hinged to the control head 12.
  • a support member such as a rope, a chain and / or a mast, be attached or suspended.
  • each holding frame 36, 46 two Frässchilde 35, 45 are respectively arranged, with each milling blade 35, 45 each two cutting wheels 31, 41 are mounted. These each form a pair of cutting wheels 32, 33, 42.
  • the milling units 30, 40 thus each have four cutting wheels 31, 41, of which two cutting wheels 31, 41 are mounted in pairs on a milling blade 35, 45.
  • the axes of rotation of the cutting wheels 31, 41 each extend horizontally and transversely to the longitudinal axis of the support and guide frame 20th
  • the cutting wheels 31, 41 are set in rotary motion.
  • the cutting wheels 31, 41 run in pairs in opposite directions and in such a way that the inner edges of the cutting wheels 31, 41 turn up and the outer flanks down.
  • the milling units 30, 40 each have a pump 60 with a suction device, with which removed soil material is sucked off and out of the area of the cutting wheels 31, 41 can be carried away.
  • the suction devices are formed substantially the same.
  • a first suction device is arranged for sucking off soil material which has been broken down by the first milling unit 30.
  • the first suction device comprises a first suction box arranged in the region of the cutting wheels 31 of the first milling unit 30 and a first suction line 38.
  • the first suction line 38 is connected to the first suction box and runs substantially perpendicularly from the first suction box and parallel to the longitudinal axis of the carrier. and guide frame 20 upwards. In this case, it is guided within the limited by the first holding frame 36 cross section of the first milling unit 30. Via the first suction line 38, the removed soil material can be transported upwards.
  • the second suction device is provided in a corresponding manner on the second milling unit 40 and comprises a second suction line 48.
  • each of the milling units 30, 40 is movable along the support and guide frame 20.
  • each of the milling units 30, 40 is associated with a hydraulic lifting device 50, wherein the first milling unit 30, a first hydraulic lifting device 50 and the second milling unit 40 is associated with a second hydraulic lifting device.
  • the hydraulic lifting devices 50 each comprise a lifting cylinder 52 and a lifting piston 54.
  • the lifting cylinders 52 are articulated to the support and guide frame 20, and the lifting piston 54 are hinged to the support frame 36, 46 of the corresponding milling unit 30, 40.
  • the support and guide frame 20 has laterally protruding tabs 28 for the articulation of the lifting cylinder 52. These are each provided with an eye, on which the lifting devices 50, for example by means of a bolt, can be articulated.
  • the tabs 28 are arranged substantially centrally with respect to the longitudinal direction of the support and guide frame 20 on the guide bar 24.
  • the lifting devices 50 are thus articulated centrally on the support and guide frame 20. They extend substantially perpendicular and parallel to the longitudinal axis of the support and guide frame 20th
  • the lifting devices 50 are each articulated at a lower region of the corresponding holding frame 36, 46.
  • the lifting devices 50 In an extended state, the lifting devices 50 have a Length, which essentially corresponds to the length of the guide bar 24 and the length of the holding frame 36, 46.
  • the length of the lifting devices 50 In a retracted state, the length of the lifting devices 50 corresponds to substantially half the length of the guide bar 24 and the length of the holding frame 36, 46.
  • the stroke length of the lifting devices 50 thus corresponds to about half the length of the guide bar 24.
  • the milling device 10 is moved by means of a support device, such as a crane, to a desired location.
  • the carrying device can be arranged, for example, on a ship or a floating platform.
  • the milling device is lowered, for example via a cable, from the carrying device into the water. There it can be positioned by means of the control and driving screws 16 just above the point to be machined.
  • the cutting wheels 31 of the first milling unit 30 are set in rotary motion and soil material is mined.
  • the first milling unit 30 is moved downwards by means of the first hydraulic lifting device 50 assigned to it, a first milling slot being produced.
  • the first hydraulic lifting device 50 has reached its maximum extended position, the milling process of this milling unit is interrupted.
  • the cutting wheels 41 of the second milling unit 40 are then set into rotary motion by means of a second hydraulic drive device.
  • the second hydraulic lifting device By means of the second hydraulic lifting device, the second milling unit 40 is moved downwards, wherein a second Frässchlitz is generated.
  • the first milling unit 30 positioned in the first milling slot acts as an abutment and guide for the second milling unit 40.
  • the two milling slots are arranged so close together that substantially no material stands between them.
  • the milling units 30, 40 can have such a large weight that, to avoid too high a pressing force downwards, the lifting device 50 causes a weight reduction in the downwards method. In individual cases, however, a force can also be exercised downwards.
  • the support and guide frame 20 is moved by retracting both hydraulic lifting devices 50 down. Subsequently, a further milling operation is first performed with the first milling unit 30 and then with the second milling unit 40 or vice versa. Then again the support and guide frame 20 is traced. The process steps are repeated until the desired final depth is reached.
  • the milling device 10 is pulled out of the created Frässchlitz and moved by means of the support means and the control and driving screws 16 to a position at which a further milling operation is performed.
  • the method steps described above are repeated.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Earth Drilling (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Bulkheads Adapted To Foundation Construction (AREA)

Claims (12)

  1. Dispositif de fraisage pour enlever un matériau du sol afin de réaliser une fouille fraisée dans une direction de creusement,
    caractérisé
    en ce qu'un châssis porteur et de guidage (20) est prévu, sur lequel, pour produire une première et une deuxième fouilles fraisées, au moins deux unités de fraisage (30, 40), avec chacune au moins une roue de fraisage (31, 41), sont placées l'une à côté de l'autre et montées mobiles parallèlement l'une à l'autre, les axes de rotation des roues de fraisage (31, 41) s'étendant transversalement à un axe longitudinal du châssis porteur et de guidage (20),
    en ce qu'au moins une première unité de fraisage (30) est guidée mobile le long de la direction de creusement sur le châssis porteur et de guidage (20), indépendamment d'une deuxième unité de fraisage (40), et
    en ce que, pour déplacer la première unité de fraisage (30), il est prévu au moins un dispositif hydraulique de levage (50) qui est relié d'une part au châssis porteur et de guidage (20) et d'autre part à la première unité de fraisage (30).
  2. Dispositif de fraisage selon la revendication 1, caractérisé en ce que, pour déplacer le dispositif de fraisage (10) sous l'eau sur le châssis porteur et de guidage (20), il est prévu au moins un dispositif d'entraînement sous-marin, en particulier une vis de commande et de conduite (16).
  3. Dispositif de fraisage selon la revendication 2, caractérisé en ce que le dispositif d'entraînement sous-marin au nombre d'au moins un est articulé de manière pivotante sur le châssis porteur et de guidage (20).
  4. Dispositif de fraisage selon l'une quelconque des revendications 2 ou 3, caractérisé en ce qu'un dispositif de relevé de position est prévu, qui est couplé au dispositif d'entraînement sous-marin.
  5. Dispositif de fraisage selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le châssis porteur et de guidage (20) comprend une barre de guidage (24) s'étendant dans la direction de creusement, le long de laquelle est guidée au moins l'une des unités de fraisage (30, 40).
  6. Dispositif de fraisage selon l'une quelconque des revendications 1 à 5, caractérisé en ce que les unités de fraisage (30, 40) comprennent chacune un châssis de maintien (36, 46) sur lequel est placé un dispositif d'entraînement hydraulique (60) pour entraîner en rotation la roue de fraisage (31, 41) au nombre d'au moins une.
  7. Dispositif de fraisage selon l'une quelconque des revendications 1 à 6, caractérisé en ce que les unités de fraisage (30, 40) comprennent chacune deux paires de roues de fraisage (32, 33, 42), les paires de roues de fraisage (32, 33, 42) présentant des axes de rotation décalés parallèlement l'un par rapport à l'autre et chaque paire de roues de fraisage (32, 33, 42) comprenant deux roues de fraisage (31, 41) avec des axes de rotation coaxiaux.
  8. Dispositif de fraisage selon l'une quelconque des revendications 1 à 7, caractérisé en ce qu'au moins un dispositif d'aspiration est prévu pour aspirer le matériau de sol enlevé.
  9. Installation de fraisage avec un mât ou une ossature de grue, caractérisée en ce qu'un dispositif de fraisage (10) selon l'une quelconque des revendications 1 à 8 est accroché au mât ou à l'ossature de grue.
  10. Procédé d'enlèvement de matériau de sol au moyen d'un dispositif de fraisage selon l'une quelconque des revendications 1 à 8 ou d'une installation de fraisage selon la revendication 9,
    caractérisé
    en ce qu'un châssis porteur ou de guidage (20) est descendu avec deux unités de fraisage (30, 40) fixées à lui,
    en ce que, dans une première étape de fraisage, une première unité de fraisage (30) est descendue et du matériau de sol est enlevé, et
    en ce que , dans une deuxième étape de fraisage, une deuxième unité de fraisage (40) est descendue et du matériau de sol est enlevé.
  11. Procédé selon la revendication 10, caractérisé en ce qu'à la suite de la deuxième étape de fraisage, le châssis porteur et de guidage (20) est descendu, puis la première et la deuxième étapes de fraisage sont répétées.
  12. Procédé selon la revendication 10 ou 11, caractérisé en ce qu'après avoir atteint une profondeur finale, le dispositif de fraisage (10) est relevé et déplacé jusqu'à un autre point de départ de fraisage au moyen d'un dispositif d'entraînement sous-marin.
EP09006624A 2009-05-15 2009-05-15 Dispositif de fraisage et procédé de dépôt de matériau de sol Active EP2251491B1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
ES09006624T ES2371500T3 (es) 2009-05-15 2009-05-15 Dispositivo de fresado y procedimiento para quitar material de suelo.
EP09006624A EP2251491B1 (fr) 2009-05-15 2009-05-15 Dispositif de fraisage et procédé de dépôt de matériau de sol
AT09006624T ATE518992T1 (de) 2009-05-15 2009-05-15 Fräsvorrichtung und verfahren zum abtragen von bodenmaterial
PT09006624T PT2251491E (pt) 2009-05-15 2009-05-15 Dispositivo de fresagem e processo para remover material do solo
DK09006624.2T DK2251491T3 (da) 2009-05-15 2009-05-15 Fræseindretning og fremgangsmåde til jordbundsmateriale
CA2702734A CA2702734C (fr) 2009-05-15 2010-05-04 Appareil de coupe et methode d'enlevement du materiau du sol
ZA2010/03180A ZA201003180B (en) 2009-05-15 2010-05-05 Cutting device and method for removing soil material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09006624A EP2251491B1 (fr) 2009-05-15 2009-05-15 Dispositif de fraisage et procédé de dépôt de matériau de sol

Publications (2)

Publication Number Publication Date
EP2251491A1 EP2251491A1 (fr) 2010-11-17
EP2251491B1 true EP2251491B1 (fr) 2011-08-03

Family

ID=41036790

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09006624A Active EP2251491B1 (fr) 2009-05-15 2009-05-15 Dispositif de fraisage et procédé de dépôt de matériau de sol

Country Status (7)

Country Link
EP (1) EP2251491B1 (fr)
AT (1) ATE518992T1 (fr)
CA (1) CA2702734C (fr)
DK (1) DK2251491T3 (fr)
ES (1) ES2371500T3 (fr)
PT (1) PT2251491E (fr)
ZA (1) ZA201003180B (fr)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
EP4198204A1 (fr) * 2021-12-15 2023-06-21 BAUER Maschinen GmbH Dispositif de fraisage et procédé de fraisage du sol

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NL2018068B1 (nl) * 2016-12-23 2018-07-02 Carpdredging Ip B V Graafinstallatie
CN108824523B (zh) * 2018-07-25 2023-10-20 上海工程机械厂有限公司 一种链锯式切割箱
CN108915015B (zh) * 2018-07-25 2023-10-20 上海工程机械厂有限公司 一种链刀式切割箱
DE102019101305A1 (de) * 2019-01-18 2020-07-23 Liebherr-Werk Nenzing Gmbh Modulare Schlitzwandfräse
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EP3981920B1 (fr) * 2020-10-07 2023-08-16 BAUER Maschinen GmbH Dispositif de génie civil et procédé de génie civil permettant d'enlever les sols

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FR2806112B1 (fr) * 2000-03-13 2002-06-14 Cie Du Sol Appareil de forage en terrain dur
JP3682042B2 (ja) * 2002-12-03 2005-08-10 大豊建設株式会社 シールド掘削装置
NL1022181C2 (nl) * 2002-12-17 2004-06-18 Seatools B V Inrichting voor het in de aardbodem vormen van een sleuf.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4198204A1 (fr) * 2021-12-15 2023-06-21 BAUER Maschinen GmbH Dispositif de fraisage et procédé de fraisage du sol

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EP2251491A1 (fr) 2010-11-17
CA2702734A1 (fr) 2010-11-15
ES2371500T3 (es) 2012-01-03
CA2702734C (fr) 2014-12-02
ZA201003180B (en) 2011-03-30
PT2251491E (pt) 2011-11-10
ATE518992T1 (de) 2011-08-15
DK2251491T3 (da) 2011-10-17

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