EP0716190B1 - Fraise par le creusage de tranchées - Google Patents

Fraise par le creusage de tranchées Download PDF

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Publication number
EP0716190B1
EP0716190B1 EP95117671A EP95117671A EP0716190B1 EP 0716190 B1 EP0716190 B1 EP 0716190B1 EP 95117671 A EP95117671 A EP 95117671A EP 95117671 A EP95117671 A EP 95117671A EP 0716190 B1 EP0716190 B1 EP 0716190B1
Authority
EP
European Patent Office
Prior art keywords
trench
digger according
trench digger
slot
excavating
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.)
Expired - Lifetime
Application number
EP95117671A
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German (de)
English (en)
Other versions
EP0716190A1 (fr
Inventor
Fritz Tibussek
Josef Von Wirth
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.)
Mhwirth GmbH
Original Assignee
Wirth Maschinen und Bohrgeraete Fabrik 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 claimed from DE19502324A external-priority patent/DE19502324A1/de
Application filed by Wirth Maschinen und Bohrgeraete Fabrik GmbH filed Critical Wirth Maschinen und Bohrgeraete Fabrik GmbH
Publication of EP0716190A1 publication Critical patent/EP0716190A1/fr
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Publication of EP0716190B1 publication Critical patent/EP0716190B1/fr
Anticipated expiration legal-status Critical
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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
    • E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
    • E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
    • E02F3/92—Digging elements, e.g. suction heads
    • E02F3/9212—Mechanical digging means, e.g. suction wheels, i.e. wheel with a suction inlet attached behind the wheel
    • 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
    • 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
    • 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
    • E02F3/22—Component parts
    • 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
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/001—Drilling a non circular hole

Definitions

  • the invention relates to a slot milling machine the preamble of claim 1 corresponding type.
  • the slot gripper must be as heavy as possible be, whereby a correspondingly complex structure of the Slit grapple carrying excavators or the two-rope winch is required.
  • the slot gripper is also through his limited "biting force" to bring down not suitable for slits in harder substrates.
  • one for manufacturing of slot walls known slot cutter in which a milling unit provided with a circumferential chamfer chain a guide post using a winch on a duty cycle crawler crane can be lowered to the sole of the slot each lowering process is a so-called "cut" at which is the floor material at the front of the slot mechanically by using a maximum of one of the weight pressure force corresponding to the milling unit applied chamfer chain released and in the direction of the guide post is promoted in the slot.
  • slot is made according to the known Air lifting process, in which below the water level in compressed air is blown into the guide post through the slot becomes.
  • the air rises and decreases in the guide post thus strongly the density of those in the guide post Liquid. Due to the pressure difference between the liquid column in the slot and in the guide post this creates an upward liquid flow, which the dissolved soil material through a Material suction opening on the guide pile foot through the inside of the guide tube from one at the above Exit opening provided at the end of the guide pole After the milling head has reached the sole of the Has prepared slot, it will be from the slot lifted out and the guide post by a cutting width offset in the direction of the slot to be driven. Subsequently the process starts over.
  • This slot milling machine is making great progress also with medium hard formations and good reliability in terms of verticality of a cut achievable, however, this slot milling machine is also economical Sifting through hard gesture information the limited "biting force" of the cut chain less suitable as well as stones and other hard inclusions relatively sensitive.
  • Another slot milling machine is from Bauer Spezialtiefbau GmbH, Schrobenhausen, known. It includes a milling head hanging freely on a winch rope, at which the bottom on the sole of the slot with in one Guide frame solved counter-rotating cutter wheels and sucked off the material mixed with the support liquid becomes.
  • This slot milling machine requires first a preliminary excavation by a backhoe or the like. Subsequently, at a distance of one device width Primary slots made and concreted. Then the remaining gaps (segments) are shown as Secondary slots dug and also concreted, see above that a continuous diaphragm wall is created.
  • the slot milling machine according to the invention when according to Claim 2 working on the undercut principle Tool for loosening up the slit wall Soil includes an ablation arm that with a about rotation-driven about the longitudinal central axis of the removal arm Removal head is equipped. The removal of the Soil is then layered by continuous Lowering the milling unit down to the slot sole. After reaching the final depth, which is usually at maximum 100 m, the milling unit is lifted out of the slot and in the direction of the diaphragm wall to be created offset a slot width.
  • the achievable stock removal rate is in the case of an inventive one Slot milling machine that has the features of the claims 3 and 4, significantly increased.
  • a Slot milling machine is the removal arm with the help of a force generator about a horizontal, transverse to the longitudinal extent of the slot extending pivot axis between one approximately horizontal and one approximately vertically downwards directed position pivotally mounted.
  • To advance a cut is made after appropriate positioning the milling unit the removal arm with the rotating removal head by actuating the force generator about its pivot axis pivoted so that the removal head on the swept, arch-shaped section removes a layer of rock.
  • the milling unit is not during this removal process subsided. Only after the swiveling process has been completed the removal arm is swiveled back and the milling unit by one of the thicknesses in the following pivoting process corresponding strata to be removed.
  • the slot milling machine according to the invention has a particular high cutting performance and is also for hard gesture information particularly well suited if the removal head according to claim 7 one or more on its end face eccentric to the longitudinal central axis of the removal arm attached cutting rollers includes.
  • the undercut principle is particularly easy realize if the cutting rollers according to claim 1O are arranged so that their roller axes, from the End face of the working head seen away, on the longitudinal central axis of the removal arm run at an acute angle. This is advantageously about 10 ° (claim 11)
  • each removal arm comprises a slot milling machine according to the invention according to claim 12 mutually parallel, spaced apart Sidewalls that each removal arm at least Cover laterally over part of its length.
  • a first, particularly preferred embodiment is Subject of claim 14. Since these two removal arms includes whose pivot axes are approximately opposite one another provided on both sides of a plane of symmetry of the milling unit longer cut lengths with this trencher be achieved.
  • An overcut angle is particularly suitable for this purpose of approximately 15 ° per removal arm (claim 17).
  • the slot milling machine according to the invention is the subject of the claim 18. This points at least from the sole guide post extending to the top of the slot on which the guide frame is attached using a this sled arrangement provided can be moved up and down is led. This measure ensures precise guidance the milling unit is guaranteed even in deep slots, so that the milling unit "migrates" out of the intended milling direction is reliably prevented. Furthermore, the guide post can be removed in the removal process reaction forces located in the removal arm record, so that only one removal arm having and thus cheaper to manufacture Milling unit can be used. The slot jacking can then in this embodiment in a known per se Way by making a cut and then Move the guide pile in the slot direction respectively.
  • the guide frame additionally comprises a positioning device, either inside the slot can be set at a desired height.
  • the positioning unit and the lead frame are using a length variable Force generator shiftable against each other.
  • a particularly preferred embodiment of the slot milling machine has the features of claims 23 and 24.
  • the positioning device individually extendable shields attached to the front and / or rear end wall and on the side walls of the Slit can be pressed and thus initially the optional Determine the positioning device.
  • Furthermore can control the direction of the milling unit about the longitudinal axis of the guide post through individual training or retract the side shields. An uncontrollable "Migration" of the milling unit from the desired one This reliably avoids the slot direction.
  • the spreading of the slotted milling machine Material from the slot can be made according to claim 25 a suction pump.
  • the solution is particularly thorough and effective Floor material can be brought out from the bottom of the slot, if according to claim 27 a pivotable mouthpiece for the Material entry is provided. Since the removal heads of the Removal arms not stationary during the removal process are, the mouthpiece can then be dimensioned so that it in its rest position, i.e. if it's not one Removal arm must give way to just above that on the Milling unit of existing soil material is sufficient. The efficiency the material transport is thereby increased again.
  • a Slot milling machine in an overview, as Whole with 100 designated first embodiment of a Slot milling machine according to the invention comprises a tubular Guide post 1, which has a pipe bend at its upper end 2 carries. On the elbow 2 is the extension Central longitudinal axis L of the guide post 1 a hitch 3 arranged at one end of one over a Boom 5 of a duty cycle crane 6 deflected lifting rope 4 is attached. The deflection of the lifting rope 4 serve two on the boom 5 attached pulleys 7.8.
  • the other end of the lifting rope 4 is at one behind the cab 9 of the duty cycle crawler crane 6 provided first Cable winch 10 anchored, the lowering or pulling out the guide post 1 serves.
  • the guide 13 can initially with an intercepting device, not shown in the drawing for locking the guide post 1, which is usually from several segments screwed together exists, be equipped.
  • the guide post 1 consists of an outer tube and an inner tube with an annular gap 16 15.
  • annular space 16 are not recognizable in the drawing Pipes arranged on the top of the pile base 17 ending outer tube 14 in an air blowing nozzle 18th open, through which through a on the elbow 2 in an air inlet tube 19 compressed air blown into the Flows inside the inner tube 15. That until Pile foot 17 extending inner tube 15 of the guide pile 1 points above the pile foot 17 in its outer surface incorporated material suction opening 20.
  • the milling unit 80 comprises a tubular, the outer tube of the guide post 1 encompassing slide arrangement 24, by means of which the removal unit 80 on the guide post 1 guided in the longitudinal direction becomes.
  • the carriage assembly 24 is at both ends each with four rollers 25 distributed over its circumference equipped, via which they are on the outer tube 14 of the Guide post 1 supports.
  • a positioning device 27 On the 100 of the slot milling machine End face 22 of the slot 23 facing the side Carriage assembly 24 is a positioning device 27 arranged, which over parallel to the central longitudinal axis L of the guide pile 1 extending guide rails 28 supports the carriage assembly.
  • the relocation of the positioning device 27 and the carriage assembly 24 against each other in the direction of the longitudinal central axis L of the guide pile 1 serves as a hydraulic piston / cylinder unit designed variable-length force generator 29, one end of which is in the upper region of the positioning device 27 provided articulated connection 30 at this one, the other end of which is at the top of the Carriage assembly 24 attached cantilever 31 is articulated.
  • FIG. 3 includes the positioning device 27 a frame 60 with two mutually parallel, spaced side walls 32,33, which in the operation of the end face 22nd the slot 23 facing region of the positioning device 27 are connected to one another via a web 34.
  • the distance between the facing surfaces the side walls 32,33 is chosen so that a further removal arm 35 to be described below in the intermediate space Finds space.
  • the shields 36 on both side walls 32, 33 provided against both side walls of the slot 23 can be pressed.
  • the shields 36 can be obtained from the slotted walls 36 designed in such a way that - in relation to their against the Sidewalls of the slot pressed position - a residual stroke is available, by which the shields 36 additionally are extendable.
  • Another extendable shield 37 which against the Face 22 of the slot 23 is pressed, is on the End face 22 facing side of the web 34 is arranged.
  • the positioning device 27 At the top of the positioning device 27 is approximately in the center of gravity of the milling unit 80 on both side walls 32, 33 each have a hitch 38, 39 appropriate.
  • a hitch 38.39 On the hitch 38.39 is over a quick fastener 40 a second lifting rope 41 attached, which over another, on the boom 5 of the cable excavator 6 arranged pulley 42 of a cable winch 10 'is supplied.
  • this lifting rope 41 can the positioning means 27 and the carriage assembly 24 guided from the guide post 1 to the removal site lowered and if necessary pulled up again provided that the shields 36.37 are in their retracted position.
  • a hinge joint 43 is symmetrical to the central plane E on the side arranged, on which the perpendicular to the central longitudinal axis L of the guide post 1 extending hinge axis S between an approximately horizontal to an approximately vertically downward swiveling position Removal arm is articulated.
  • the removal arm 35 extends below the shields 36,37 between the side walls 32,33 of the positioning device 27 through, the open bottom of about in the form of an arc, the radius of which is approximately the vertical Distance between the lower end of the carriage assembly 24 and the hinge axis S corresponds and which approximately up to which the end face 26 of the positioning device 27 forming web runs, is formed.
  • the removal arm act 35 laterally overlapping side walls 32,33 not only as protection against damage in the event of a collapse of the Slot 23, but also serve to accommodate lateral Removal reaction forces that are not the hinge joint 43 and load the carriage assembly 24, but initiated directly via the shields 36.37 in the ground become.
  • the pivoting of the removal arm 35 between one approximately horizontal and one approximately vertically pointing downwards Alignment also serves as hydraulic Actuated piston / cylinder unit of trained, variable length Force generator 46, the one hand at a distance of about a third of the ablation arm length from the hinge joint 43 spaced at the top of the removal arm is articulated, on the other hand on the boom 31 Carriage assembly 24 supports.
  • the removal arm carries on its front, out of the Positioning device 27 protruding an end one hydraulically not recognizable in the drawing driven rotary motor driven removal head 47, which during the operation of the slot milling machine 100 Longitudinal central axis M of the removal arm is rotated.
  • the removal head 47 shown in detail in FIG. 4 comprises a shaft 48 driven by the rotary motor, at the front end of the removal arm 35 by a double roller bearing 49 is stored.
  • the carrier ring 51 has three spaced from the longitudinal central axis M, an angle of bores 52 each forming 120 ° to one another, the Axes N seen from the removal head 47 on the longitudinal central axis M of the removal arm 35 at an acute angle of approach about 10 °.
  • the holes 52 are used to support three each identical cutting rollers 53 rotatable about the axis N.
  • the cutting rollers 53 consist of a rotationally symmetrical to the N axis Cutting roller body 54, which is the flat end face 55 slightly tapered.
  • To the Cutting roller body includes itself up to the end face 55 strongly conically widening area 56, the outer Edge with the outer edge of the perpendicular to the N axis End face 55 the sharp-angled edge of a cutting roller 53 forms.
  • a prefabricated starting slot is initially the guide post 1 with the help of the winch 10 relaxed lifting rope 4 so far that the Pile foot 17 on the sole of the slot to lie on is coming. If necessary, a can on the pile foot 17 Tensioning unit not shown in the drawing Supporting the pile foot on the side walls of the Slot and / or a ram tip for driving the Pile foot 17 may be provided in the bottom of the slot, whereby a lateral sliding of the pile foot 17 and so that the milling process runs out of the desired one Direction can be reliably prevented. The continues on the lifting rope 4 hanging guide post is then by the provided in the carriage base frame 12 hydraulically actuated guide fine-tuned, until it hangs stretched vertically in the slot.
  • the removal unit 80 by means of the second hydraulic winch 10 'lowered lifting rope 41 lowered into the prefabricated starting slot and through Extending the shields 36.37 braced in this.
  • the starting position is the variable-length force generator 29, with the help of the positioning device 27 and Carriage assembly 24 against each other in the direction of the guide post 1 can be moved, fully extended, the removal arm 35 is approximately vertical downward position.
  • the removal arm by retracting the hydraulic Piston / cylinder unit trained force generator 46 around the hinge axis S at a constant angular velocity pivoted into an approximately horizontal position.
  • the rotating one carries Abtragkopf 47 a layer of the on the end wall 22 of the slot 23 pending soil material.
  • the variable-length force generator 29 After Reaching the approximately horizontal position of the removal arm 35 is fed in the direction of the guide pile by retracting the variable-length force generator 29, whereby the removal arm 35 together with the carriage assembly 24 shifted downwards by a predeterminable amount becomes.
  • Another layer of rock is now through Swiveling the removal arm with the help of the force generator 46 removed in the opposite direction. Then the Cutting thickness for the next cut above the length variable Force generator 29 readjusted again, and the The cutting process starts from the beginning.
  • the removal arm 35 is positioned so that the removal head 47 rests on the slot base. Then by retracting the shields 36.37 Loosened the positioning device 27 and the variable length force generator 29 fully extended, whereby the positioning device 27 lowers. After that if this is tightened again by extending the shields 36, 37, and the cutting process described above will performed again.
  • FIG. 5 Another embodiment of an inventive Slot milling machine is shown in Fig. 5. Repetitions to avoid, functionally identical assemblies with the same, however deleted reference numerals as for the already explained slot cutter. How it works assemblies that have not been mentioned again are already described identical.
  • the milling unit 80 ' accordingly has two with corresponding ones Removal heads 47 'equipped removal arms 35 'available. These are around on both sides of the plane of symmetry mutually parallel hinge axes S 'pivotable about Hinge joints 43 'connected to the frame 60' and each support itself as a piston / cylinder unit trained variable force generator 46 'on the frame 60 'onwards.
  • the two piston / cylinder units are over in hydraulic control means not recognizable in the drawing can be operated separately.
  • the frame 60 ' is in turn by means of guide rails 28 'in a positioning device surrounding the frame on the outside 27 'added vertically displaceable to this.
  • the shift serves two sides of the transverse plane of symmetry K arranged parallel length variable Power generator 29 ', which in turn can be operated hydraulically Piston / cylinder units are formed.
  • Positioning device 27 ' comprises on its side walls 32 ', 33' two pairs of extendable shields 36 ', which are vertically spaced apart.
  • Shields 37 ' are on opposite verticals End faces of the milling unit 80 'provided.
  • the shields 36 ', 37' are used for jamming and alignment the milling unit 80 'in the slot.
  • the application of the loosened on the sole of the slot Materials are made using the well-known suction process.
  • one is arranged centrally in the milling unit Suction pipe 62, which has a flexible upward Hose 63 with a not shown in the drawing, surface suction device is connected to a Vacuum applied.
  • the lower end of the suction pipe 62 opens into a pivotable mouthpiece 64, which is in operation the slot milling machine until just above the amount to be removed Slit sole is sufficient and so a particularly effective suction of the loosened soil material.
  • the separate excavation of a starting slot not mandatory.
  • the lowering of the milling unit 80 ' is carried out with the aid of a known starting template, which a includes vertical opening into which the milling unit can be lowered and which is clamping and aligning them allowed.
  • the removal arms 35 ' By activating the removal arms 35 ', the removal heads 47 'and the length variable causing the feed Power generator 29 'is then the starting slot with the milling unit 80 'to the desired depth in the ground driven.
  • the removal arms 35 ' are preferred pivoted in opposite directions, with a gradual feed always occurs when the removal arms 35 'in their upper, approximately horizontal position. Occurring Removal reaction forces stand out through this type the control at least partially on each other.
  • the mouthpiece 64 is a cyclical overlap of the central area under the Milling unit 80 'provided.
  • the two removal arms 35 'in the manner shown in FIGS. 6 and 7 alternately up to their vertically downward Position shifted by about 15 °, the other removal arm 35 'does not reach its vertical position.
  • the pivotable mouthpiece 64 gives way to this overcut movement the removal arms 35 '.
  • the slot can be driven in two ways respectively:

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  • General Engineering & Computer Science (AREA)
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Claims (28)

  1. Fraise de taille (100) pour creuser une tranchée continue (23) dans le sol, utilisable en particulier dans des formations de pierres dures, comportant une unité de fraisage (80, 80') qui peut être descendue dans la tranchée et qui comprend, monté sur un cadre (60, 60') un dispositif pour désagréger la terre qui constitue la paroi et le fond à tailler de la tranchée,
    caractérisée en ce que
    le dispositif pour désagréger la terre comprend un outil fonctionnant selon le principe de la contredépouille.
  2. Fraise de taille selon la revendication 1,
    caractérisée en ce que
    l'outil comprend un bras d'excavation (35, 35') équipé d'une tête excavatrice (47, 47') tournant sensiblement autour de l'axe longitudinal médian (M) du bras (35, 35').
  3. Fraise de taille selon la revendication 2,
    caractérisée en ce que
    le bras d'excavation (35, 35') peut, avec l'aide d'un générateur de force (46, 46') basculer autour d'un axe (S, S') sensiblement horizontal et perpendiculaire à la direction longitudinale de la tranchée (23).
  4. Fraise de taille selon la revendication 3,
    caractérisée en ce que
    le bras d'excavation (35, 35') peut basculer entre une position sensiblement horizontale et une position sensiblement verticale.
  5. Fraise de taille selon la revendication 3 ou 4,
    caractérisée en ce que
    le générateur de force (46, 46') est une unité à piston et cylindre dont une extrémité est articulée au bras d'excavation (35, 35') à une certaine distance de l'axe de basculement (S, S') tandis que l'autre extrémité est en appui sur le cadre (60, 60').
  6. Fraise de taille selon une des revendications 3 à 5,
    caractérisée en ce que
    l'axe de basculement (S, S') se trouve à l'extrémité du bras (35, 35') opposée à la tête excavatrice (47, 47').
  7. Fraise de taille selon une des revendications 2 à 6,
    caractérisée en ce que
    la tête excavatrice (47, 47') comprend sur sa face frontale (55) un ou plusieurs disques de taille (53) excentrés par rapport à l'axe longitudinal (M) du bras.
  8. Fraise de taille selon la revendication 7,
    caractérisée en ce qu'
    elle comporte au moins trois et de préférence cinq disques de taille (53) sur la face frontale (55) de la tête excavatrice (47, 47').
  9. Fraise de taille selon la revendication 8,
    caractérisée en ce que
    les distances angulaires (53) des disques de taille (53) voisins sont également espacés.
  10. Fraise de taille selon une des revendications 7 à 9,
    caractérisée en ce que
    les axes (N) des disques de taille (53), observés depuis la face frontale (55) de la tête excavatrice (47, 47') font un angle aigu avec l'axe longitudinal (M) du bras d'excavation (35).
  11. Fraise de taille selon la revendication 10,
    caractérisée en ce que
    l'angle est d'environ 10°.
  12. Fraise de taille selon une des revendications 2 à 11,
    caractérisée en ce que
    le cadre (60, 60') comporte des parois latérales (32, 33 ; 32', 33') parallèles et espacées qui recouvrent le bras d'excavation (35, 35') sur au moins une partie de sa longueur.
  13. Fraise de taille selon la revendication 12,
    caractérisée en ce que
    sur les faces en regard des parois latérales (32, 33 ; 32', 33') font saillie des portées de guidage (44, 45) sur lesquelles peut glisser le bras d'excavation (35, 35').
  14. Fraise de taille selon une des revendications 3 à 13,
    caractérisée en ce que
    l'unité de fraisage (80') comprend deux bras d'excavation (35') dont les axes de basculement (S') se font à peu près face de part et d'autre d'un plan transversal de symétrie (K) de l'unité de fraisage.
  15. Fraise de taille selon une des revendications 3 à 14,
    caractérisée en ce que
    les deux bras d'excavation (35') peuvent basculer indépendamment l'un de l'autre.
  16. Fraise de taille selon une des revendications 3 à 15,
    caractérisée en ce que
    chaque bras d'excavation (35'), en partant de sa position verticale dirigée vers le bas, peut pénétrer par basculement dans la zone de basculement de l'autre bras, de sorte que sur le fond de la tranchée, il y a chevauchement, de part et d'autre du plan de symétrie (K), selon un angle (W).
  17. Fraise de taille selon une des revendications 3 à 16,
    caractérisée en ce que
    l'angle (W) est d'environ 15°.
  18. Fraise de taille selon une des revendications 1 à 15,
    caractérisée en ce que
    le cadre (60) comprend un poteau de guidage qui va du fond de la tranchée (23) jusqu'à au moins le bord supérieur de celle-ci et le long duquel peut monter ou descendre un dispositif coulissant (24).
  19. Fraise de taille selon une des revendications 1 à 18,
    caractérisée en ce que
    le cadre (60, 60') comprend un dispositif de positionnement (27, 27') qui peut être fixé à volonté à l'intérieur de la tranchée (23), ce dispositif et le cadre de guidage (60, 60') pouvant se déplacer l'un par rapport à l'autre, au moins selon une avance verticale, pendant le fonctionnement de la fraise.
  20. Fraise de taille selon la revendication 19,
    caractérisée en ce que
    le dispositif de positionnement (27, 27') coopère avec le cadre (60, 60') par l'intermédiaire d'un guidage glissant (28, 28') dirigé verticalement.
  21. Fraise de taille selon la revendication 19 ou 20,
    caractérisée en ce que
    le déplacement du cadre (60, 60') par rapport au dispositif de positionnement (27, 27') est assuré par au moins un générateur de force (29, 29') à longueur variable, situé entre ceux-ci et agissant dans la direction d'avance verticale.
  22. Fraise de taille selon la revendication 21,
    caractérisée en ce que
    le générateur de force (29, 29') à longueur variable est un vérin hydraulique à piston et cylindre.
  23. Fraise de taille selon une des revendications 9 à 23,
    caractérisée en ce que
    le dispositif de positionnement (27, 27') comprend des boucliers (36, 36') individuellement mobiles, qui s'appuient sur les parois latérales de la tranchée (23) et qui permettent de positionner et de bloquer le dispositif de positionnement (27, 27') dans la tranchée (23).
  24. Fraise de taille selon la revendication 23,
    caractérisée en ce qu'
    il est prévu des boucliers mobiles supplémentaires (37, 37') agissant sur la paroi frontale avant et/ou arrière (22) de la tranchée (23).
  25. Fraise de taille selon une des revendications 1 à 24,
    caractérisée en ce qu'
    il est prévu une pompe aspirante pour évacuer le matériau excavé de la tranchée (23).
  26. Fraise de taille selon une des revendications 1 à 24,
    caractérisée en ce qu'
    il est prévu un système de mise en oeuvre du procédé d'élévation par air pour évacuer le matériau excavé de la tranchée.
  27. Fraise de taille selon une des revendications 25 à 26,
    caractérisée en ce qu'
    il est prévu une embouchure basculante (61) pour servir d'entrée au matériau excavé à évacuer.
  28. Fraise de taille selon la revendication 26, dans laquelle l'unité de fraisage (80) se déplace le long d'un poteau de guidage (1) allant du fond de la tranchée jusqu'à au moins le bord supérieur de celle-ci,
    caractérisée en ce que
    le système de mise en oeuvre du procédé d'élévation par air comprend :
    a) dans le poteau de guidage (1), un canal de soufflage alimenté en air comprimé et qui débouche, un peu au-dessus du pied (17) du poteau (1), dans une tuyère (18), d'injection d'air par laquelle le courant d'air est introduit à l'intérieur du poteau de guidage (1),
    b) dans le pied du poteau de guidage (1), une ouverture d'aspiration du matériau,
    c) à l'extrémité supérieure du poteau de guidage, une ouverture de sortie du matériau.
EP95117671A 1994-12-09 1995-11-09 Fraise par le creusage de tranchées Expired - Lifetime EP0716190B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE4443973 1994-12-09
DE4443973 1994-12-09
DE19502324 1995-01-26
DE19502324A DE19502324A1 (de) 1994-12-09 1995-01-26 Schlitzfräse

Publications (2)

Publication Number Publication Date
EP0716190A1 EP0716190A1 (fr) 1996-06-12
EP0716190B1 true EP0716190B1 (fr) 1999-10-13

Family

ID=25942737

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95117671A Expired - Lifetime EP0716190B1 (fr) 1994-12-09 1995-11-09 Fraise par le creusage de tranchées

Country Status (2)

Country Link
EP (1) EP0716190B1 (fr)
DE (1) DE29522060U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106677224A (zh) * 2017-02-28 2017-05-17 浙江绩丰岩土技术股份有限公司 用于地下连续墙锁扣管接头的铣轮刷壁器

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29716938U1 (de) * 1997-09-20 1999-01-28 Zeilinger, Wolfgang, Dipl.-Ing., 90411 Nürnberg Räumvorrichtung für Bodenschlitze
DE19753349C2 (de) * 1997-12-03 2000-07-06 Wirth Co Kg Masch Bohr Unterwasser-Bodenabbaugerät
FR2891287B1 (fr) * 2005-09-29 2007-12-21 Cie Du Sol Soc Civ Ile Machine de realisation d'une paroi continue dans le sol
CN101614016B (zh) * 2008-06-26 2011-11-02 上海金泰工程机械有限公司 地下侧向成槽铣销装置进给装置
ATE518992T1 (de) 2009-05-15 2011-08-15 Bauer Maschinen Gmbh Fräsvorrichtung und verfahren zum abtragen von bodenmaterial
CN106968281A (zh) * 2017-04-01 2017-07-21 江苏科弘岩土工程有限公司 一种u形槽开槽机

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2260684C3 (de) * 1972-12-12 1979-07-19 Gebr. Eickhoff, Maschinenfabrik U. Eisengiesserei Mbh, 4630 Bochum Schneidscheibe für Gewinnungs- oder Vortriebsmaschinen
IT1209018B (it) * 1983-01-24 1989-07-10 Casagrande Spa Benna fresatrice.
US5056242A (en) * 1989-05-12 1991-10-15 Finic, B.V. Underground wall construction method and apparatus
EP0496926A1 (fr) * 1991-02-01 1992-08-05 C.T.R. - Consulenti Tecnico-Commerciali Riuniti S.A.S. Di Miotti Anna E C. Fraise pour creuser des tranchées
DE4119212C2 (de) * 1991-06-11 1996-06-27 Bauer Spezialtiefbau Verfahren zum Fräsen einer Schlitzwand

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106677224A (zh) * 2017-02-28 2017-05-17 浙江绩丰岩土技术股份有限公司 用于地下连续墙锁扣管接头的铣轮刷壁器

Also Published As

Publication number Publication date
EP0716190A1 (fr) 1996-06-12
DE29522060U1 (de) 1999-07-29

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