EP1452645A1 - Method for building a diaphragm wall in the ground and trench wall cutting apparatus - Google Patents
Method for building a diaphragm wall in the ground and trench wall cutting apparatus Download PDFInfo
- Publication number
- EP1452645A1 EP1452645A1 EP04000766A EP04000766A EP1452645A1 EP 1452645 A1 EP1452645 A1 EP 1452645A1 EP 04000766 A EP04000766 A EP 04000766A EP 04000766 A EP04000766 A EP 04000766A EP 1452645 A1 EP1452645 A1 EP 1452645A1
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- EP
- European Patent Office
- Prior art keywords
- milling
- slot
- frame
- trench
- cutter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005520 cutting process Methods 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 30
- 238000003801 milling Methods 0.000 claims description 104
- 239000002689 soil Substances 0.000 claims description 29
- 239000007788 liquid Substances 0.000 claims description 18
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 239000012530 fluid Substances 0.000 abstract description 5
- 239000011800 void material Substances 0.000 abstract 1
- 239000000725 suspension Substances 0.000 description 7
- 238000010276 construction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Images
Classifications
-
- 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
- E21B10/00—Drill bits
- E21B10/08—Roller bits
-
- 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
Definitions
- the invention relates to a method for producing a Diaphragm wall in the floor according to the preamble of claim 1, in which at least one is arranged on a trench wall cutter The milling wheel is rotated by a drive is, the trench cutter is lowered into the ground, whereby Bottom material located below the milling wheels cleared and a milling slot is made, and the milling slot with a settable liquid is filled up.
- the invention further relates to a trench cutter for manufacturing a milling slot according to the preamble of the claim 4.
- a trench cutter has a frame and at least one milling wheel arranged on the frame.
- the invention relates to a trench wall milling device for producing a diaphragm wall according to the preamble of claim 7, in particular for carrying out the Process is suitable and a carrier device and a Has trencher, which is substantially vertical is adjustably arranged on the carrier device.
- DE 34 24 999 C2 known trench cutters are used.
- This known trench wall cutters have a milling frame as well attached to this underneath, rotating drivable cutting wheels on.
- the trench cutter is attached to a rope by one Construction vehicle lowered and penetrates due to its own weight in the ground.
- the guidance of the trench wall cutter in the milling slot takes place via the milling frame, which is located on the Wall of the slot supports. Cleared from the milling wheels Soil material is fastened to the milling frame by the milling wheels Suction device supplied and transported to the surface.
- binder-soil mixture To produce the binder-soil mixture, they require previously described method, however, comparatively complex, Pump, mixing and storage devices arranged above ground.
- the object of the present invention is to provide a method for producing a diaphragm wall in the floor, a diaphragm wall milling device and a diaphragm wall milling device with which a diaphragm wall can be produced as simply as possible.
- a method according to the invention for producing a diaphragm wall in the floor is characterized by the fact that the cleared Soil material from the cutting wheel in a rear area of the milling slot is promoted that the cleared soil material mixed with the settable liquid in the milling slot and that the cleared soil material at least partially left in the milling slot to form the diaphragm wall becomes.
- a basic idea of the invention is that of the Ground material in the milling slot cleared by the cutting wheels Effect of the cutting wheels with the settable liquid, so to speak To mix "in situ” and thereby a hardening liquid-soil mixture manufacture. This eliminates the need the entire cleared soil material by pumping equipment elaborate to promote above ground.
- the cleared soil material is obtained from the milling wheels conveyed into a rear area of the milling slot.
- the rear area can be an area in the milling slot is formed above the frame.
- According to the invention becomes the cleared soil material mixed with the liquid leave at least partially in the milling slot, where it Form the diaphragm wall can harden.
- liquid can be beneficial to one Part of the cleared soil with suspension from the To remove the milling slot. You can do this on the trench cutter or above ground at the edge of the milling slot be provided.
- At least one milling wheel Drill the milling slot uniformly.
- the trench cutter When making the milling slot, the trench cutter can be moved uniformly in the ground. Particularly advantageous it is, however, that the trench cutter at least temporarily in an alternating up / down movement becomes. This results in particularly good mixing of the removed material Soil material achieved with the settable liquid.
- the stroke of this alternating up / down movement can be significantly less than the total height of the slot his. It can in particular be of the order of magnitude of the diameter of the cutting wheels.
- At least temporarily alternating upward and downward movements performed can be achieved in that the trench cutter from one Construction equipment is raised and then lowered again.
- An alternating up / down movement can be both when sinking the milling slot as well as when pulling the Trench wall cutter carried out from the finished milling slot become.
- a trench cutter according to the invention is characterized in that that the cross section of the frame is smaller than that Cross section of the milling slot to form a free space is formed, through which cleared soil material from the at least one milling wheel past the frame into a rear Area of the milling slot is conveyable.
- a basic idea of the trench cutter according to the invention is it to form a free space in or next to the frame what cleared soil material and suspension when manufacturing the milling slot and / or when pulling out the trench cutter from the finished milling slot as freely as possible can flow past the frame of the trench cutter. hereby becomes a particularly fast and energy-saving milling with one enables efficient mixing effect at the same time.
- formation of the free space is provided for the cross section of the frame perpendicular to the direction of advance the trench cutter never completely covers the milling slot. This can be achieved by making the circumferential dimensions the cross-section of the frame is smaller than the internal dimensions of the milling slot and / or that in cross section one or more openings are provided in the frame are. Such an arrangement allows cleared to flow through Floor material past the frame in one direction of movement opposite direction of the frame.
- a particularly preferred trench wall cutter there are several Any number of cutting wheels are provided, which are parallel Have axes of rotation.
- a preferred embodiment has four cutting wheels, two of which are paired around the same Rotational axis are rotatably arranged.
- a cross section of the Milling slot is preferably rectangular.
- Trench wall cutter has at least one milling wheel one for a reversing rotary movement suitable milling tooth arrangement on.
- a milling tooth arrangement can present soil material when turning the milling wheels both clockwise as well as counterclockwise clearing. This enables one particularly good mixing of the soil material with a at the same time high mining speed.
- a feed device is arranged on the frame.
- an arrangement close to the at least one Milling wheel is a particularly good mix of the cleared Soil material reached with the liquid.
- the trench cutter is not on the wall of the trench slot but at a distance from the trench cutter Carrier device led.
- the leadership takes place in particular in a direction parallel to the direction of advance of the trench cutter Direction.
- Such an arrangement enables the Cross section of the frame of the trench cutter as small as possible embody.
- the guide is in contact with the wall of the milling slot.
- the frame can be designed without guide elements and its dimensions can be adjusted accordingly be kept small, which is a simple passage of cleared Soil material allows.
- the trench cutter can for example used on a guide device, as it is known with vibrators.
- the linear guide device has a guide rod, in particular a telescopic rod on which the trench cutter is stored.
- a guide rod enables one particularly good lateral guidance of the trench cutter.
- she allows in particular also a transmission in the direction of advance directed axial force from the carrier to the Diaphragm wall milling machine, which means that the Trench cutter can be achieved when sinking.
- the trench cutter can also be designed that they are only due to rotating milling wheels their own weight into the ground.
- a guide rod can also be used for the Transmission of an axial force in the direction of advance is not designed.
- the diameter of the guide rod is preferably such that that it is smaller than the diameter of the cross section of the frame is.
- the guide rod preferably has essentially one rectangular or substantially circular Cross-section.
- a telescopic rod can also preferably be one Kelly rod can be used.
- a particularly preferred trench wall milling device is also characterized in that the linear guide device has a guide sleeve arranged on the carrier, by which the guide rod is passed through.
- Such Guide sleeve can completely or only partially the guide rod reach around in the circumferential direction. Projections can be made on the guide sleeve and / or depressions formed with corresponding depressions and / or projections on the guide rod are engaged and thus a non-rotatable guide ensure the guide rod.
- Actuator especially a cable pull mechanism, for vertical Movement of the guide rod.
- a Actuator can be pulled out of the trench cutter from the milling slot also be designed to have an axial force in the direction of advance of the trench cutter on the trench cutter transferred to. This enables a particularly good milling performance can be achieved.
- the actuator can also be designed in this way be an alternating up / down movement the trench cutter enables. Possible embodiments of the actuator have a rack and pinion mechanism or a hydraulic mechanism.
- the diaphragm wall milling device according to the invention advantageously has the trench wall cutter described above. With both can be carried out in particular the method according to the invention become.
- FIGS. 1 and 2 show front views of two different ones Embodiments of trench wall milling according to the invention 10.
- a frame 20 designed as a carrier plate Milling wheels 12, 12 'rotatably attached.
- the milling wheels 12, 12 ' are directly next to each other with parallel Trained axes of rotation.
- a housed and in the form of hydraulic motors trained drive 15, 15 ' is on the frame 20th attached and operatively connected to the cutting wheels 12, 12 '.
- a guide rod 33 On the side of the frame facing away from the milling wheels 12, 12 ' 20 this is attached to a guide rod 33.
- the guide rod 33 has an approximately circular cross section.
- projections 35 are formed, which are non-rotatable Serve leadership of the guide rod 33 in the guide sleeve 34.
- Supply lines 40 are located within the guide rod 33 arranged for hydraulic fluid.
- a feed line Supply device 41 is formed for a liquid. As shown in Fig. 2, this occurs as a feed line formed feed device 41 through the frame 20 therethrough and ends between the cutting wheels 12, 12 '.
- Milling teeth 13 are formed on the circumferential side of the milling wheels 12, 12 '.
- the milling teeth 13 are in the opposite direction Operation of the cutter wheels arranged. It is provided that the milling wheel 12 shown on the left in FIG. 2 in a clockwise direction, the milling wheel 12 'shown on the right in the counterclockwise direction is turning. This makes suspension in the middle area sucked in by the cutting wheels 12, 12 'while the milled off Soil material along with suspension on the outside is promoted above.
- On the circumferential side on the milling wheels 12, 12 ' known laterally pivotable folding teeth 14 are also arranged, which soil clear below the gear shield.
- the diaphragm wall milling device has a track-driven one Construction vehicle designed carrier device 30.
- a mast 31 is mounted on the carrier device 30, on which in turn on two fastening points a guide sleeve 34 is attached.
- Guide rod 33 runs in the vertical direction Guide rod 33, at the lower end of the trench cutter 10 is attached.
- a cable mechanism 37 (Fig. 4) or one Slider 38 (Fig. 5) are for vertical movement the guide rod 33 is provided.
- supply lines 40 for hydraulic fluid and one designed as a feed line Supply device 41 for a settable liquid occur at the upper end of the guide rod 33 from this out.
- the trench cutter 10 lies directly with its frame on the guide sleeve 34.
- the frame 20 of the trench cutter 10 is designed such that when sinking (Fig. 7) a space 6 between the frame 20th and a wall of the milling slot 3 is formed. This free space 6 allows cleared floor material to pass through the frame 20 past in a rear area 4 of the milling slot 3, which is located above the trench cutter 10.
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Paleontology (AREA)
- Geology (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- Geochemistry & Mineralogy (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Earth Drilling (AREA)
- Crushing And Grinding (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Cultivation Of Plants (AREA)
- Road Repair (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zum Herstellen einer Schlitzwand im Boden gemäß dem Oberbegriff des Anspruchs 1, bei dem mindestens ein an einer Schlitzwandfräse angeordnetes Fräsrad durch einen Antrieb in eine Drehbewegung versetzt wird, die Schlitzwandfräse in den Boden abgesenkt wird, wobei unterhalb der Fräsräder befindliches Bodenmaterial abgeräumt und ein Frässchlitz hergestellt wird, und der Frässchlitz mit einer abbindbaren Flüssigkeit aufgefüllt wird.The invention relates to a method for producing a Diaphragm wall in the floor according to the preamble of claim 1, in which at least one is arranged on a trench wall cutter The milling wheel is rotated by a drive is, the trench cutter is lowered into the ground, whereby Bottom material located below the milling wheels cleared and a milling slot is made, and the milling slot with a settable liquid is filled up.
Ferner betrifft die Erfindung eine Schlitzwandfräse zum Herstellen eines Frässchlitzes gemäß dem Oberbegriff des Anspruchs 4. Eine derartige Schlitzwandfräse weist einen Rahmen und mindestens ein am Rahmen angeordnetes Fräsrad auf.The invention further relates to a trench cutter for manufacturing a milling slot according to the preamble of the claim 4. Such a trench cutter has a frame and at least one milling wheel arranged on the frame.
Schließlich betrifft die Erfindung eine Schlitzwandfräsvorrichtung zum Herstellen einer Schlitzwand gemäß dem Oberbegriff des Anspruchs 7, die insbesondere zur Durchführung des Verfahrens geeignet ist und ein Trägergerät sowie eine Schlitzwandfräse aufweist, welche im Wesentlichen vertikal verstellbar am Trägergerät angeordnet ist.Finally, the invention relates to a trench wall milling device for producing a diaphragm wall according to the preamble of claim 7, in particular for carrying out the Process is suitable and a carrier device and a Has trencher, which is substantially vertical is adjustably arranged on the carrier device.
Ein Verfahren zum Herstellen einer Schlitzwand im Boden ist aus der DE 195 30 827 C2 bekannt. Bei diesem sogenannten Zwei-Phasen-Verfahren wird in einer ersten Phase ein Frässchlitz ausgehoben und der dabei anfallende Bodenaushub des Frässchlitzes nach Übertage gefördert. Der so entstehende Frässchlitz wird mit einer Stützsuspension verfüllt und so abgestützt. In einer zweiten Phase nach dem Abteufen des Frässchlitzes wird unter Verdrängung der Stützsuspension eine aushärtende Suspension in den Schlitz eingebracht.One method of making a diaphragm wall in the floor is known from DE 195 30 827 C2. In this so-called two-phase process in the first phase, a milling slot excavated and the resulting excavation of the milling slot funded after surface. The milling slot created in this way is filled with a support suspension and thus supported. In a second phase after the milling slot has been sunk becomes a hardening while displacing the support suspension Suspension introduced into the slot.
Bei einem aus der DE 41 41 629 C2 bekannten Ein-Phasen-Verfahren
wird der Schlitz von Beginn an durch eine Suspension
abgestützt, die durch Vermischen von ausgehobenem Bodenmaterial
und einem Bindemittel Übertage hergestellt wird.In a single-phase method known from
Zur Durchführung dieser bekannten Verfahren können aus der DE
34 24 999 C2 bekannte Schlitzwandfräsen Anwendung finden. Diese
bekannten Schlitzwandfräsen weisen einen Fräsrahmen sowie
an diesem unterseitig befestigte, rotierend antreibbare Fräsräder
auf. Die Schlitzwandfräse wird an einem Seil von einem
Baufahrzeug abgesenkt und dringt aufgrund ihres Eigengewichtes
in den Boden ein. Die Führung der Schlitzwandfräse im Frässchlitz
erfolgt dabei über den Fräsrahmen, der sich an der
Wandung des Schlitzes abstützt. Von den Fräsrädern abgeräumtes
Bodenmaterial wird von den Fräsrädern einer am Fräsrahmen befestigten
Absaugvorrichtung zugeführt und nach Übertage befördert.To carry out these known methods,
Zur Herstellung der Bindemittel-Boden-Mischung erfordern die zuvor beschriebenen Verfahren jedoch vergleichsweise aufwändige, Übertage angeordnete Pump-, Misch- und Speichereinrichtungen.To produce the binder-soil mixture, they require previously described method, however, comparatively complex, Pump, mixing and storage devices arranged above ground.
Aufgabe der vorliegenden Erfindung ist es, ein Verfahren zum Herstellen einer Schlitzwand im Boden, eine Schlitzwandfräse sowie eine Schlitzwandfräsvorrichtung anzugeben, mit denen eine Schlitzwand möglichst einfach herstellt werden kann. The object of the present invention is to provide a method for producing a diaphragm wall in the floor, a diaphragm wall milling device and a diaphragm wall milling device with which a diaphragm wall can be produced as simply as possible.
Die Aufgabe wird durch ein Verfahren mit den Merkmalen des Anspruchs 1, einer Schlitzwandfräse mit den Merkmalen des Anspruchs 4 und einer Schlitzwandfräsvorrichtung mit den Merkmalen des Anspruchs 7 gelöst. Bevorzugte Ausführungsformen sind in den Unteransprüchen angegeben. The task is accomplished by a method with the features of the claim 1, a trench cutter with the features of the claim 4 and a trench wall milling device with the features of claim 7 solved. Preferred embodiments are specified in the subclaims.
Ein erfindungsgemäßes Verfahren zum Herstellen einer Schlitzwand im Boden ist dadurch gekennzeichnet, dass das abgeräumte Bodenmaterial von dem Fräsrad in einen rückwärtigen Bereich des Frässchlitzes gefördert wird, dass das abgeräumte Bodenmaterial im Frässchlitz mit der abbindbaren Flüssigkeit durchmischt wird, und dass das abgeräumte Bodenmaterial zumindest teilweise im Frässchlitz zum Bilden der Schlitzwand belassen wird.A method according to the invention for producing a diaphragm wall in the floor is characterized by the fact that the cleared Soil material from the cutting wheel in a rear area of the milling slot is promoted that the cleared soil material mixed with the settable liquid in the milling slot and that the cleared soil material at least partially left in the milling slot to form the diaphragm wall becomes.
Ein Grundgedanke der Erfindung besteht darin, das von den Fräsrädern abgeräumte Bodenmaterial im Frässchlitz durch die Wirkung der Fräsräder mit der abbindbaren Flüssigkeit sozusagen "in situ" zu vermengen und dabei eine aushärtende Flüssigkeit-Boden-Mischung herzustellen. Hierdurch entfällt die Notwendigkeit, das gesamte abgeräumte Bodenmaterial durch Pumpeinrichtungen aufwändig nach Übertage zu fördern. Das abgeräumte Bodenmaterial wird erfindungsgemäß von den Fräsrädern in einen rückwärtigen Bereich des Frässchlitzes gefördert. Der rückwärtige Bereich kann dabei ein Bereich sein, der im Frässchlitz oberhalb des Rahmens ausgebildet ist. Erfindungsgemäß wird das mit der Flüssigkeit durchmischte, abgeräumte Bodenmaterial zumindest teilweise im Frässchlitz belassen, wo es zum Bilden der Schlitzwand aushärten kann. Aufgrund einer möglichen Volumenänderung des Bodenmaterials bei der Zufuhr der abbindbaren Flüssigkeit kann es jedoch vorteilhaft sein, einen Teil des abgeräumten Bodenmaterials mit Suspension aus dem Frässchlitz abzufördern. Hierzu kann an der Schlitzwandfräse oder Übertage am Rand des Frässchlitzes eine Abfuhreinrichtung vorgesehen sein.A basic idea of the invention is that of the Ground material in the milling slot cleared by the cutting wheels Effect of the cutting wheels with the settable liquid, so to speak To mix "in situ" and thereby a hardening liquid-soil mixture manufacture. This eliminates the need the entire cleared soil material by pumping equipment elaborate to promote above ground. The cleared According to the invention, soil material is obtained from the milling wheels conveyed into a rear area of the milling slot. The rear area can be an area in the milling slot is formed above the frame. According to the invention becomes the cleared soil material mixed with the liquid leave at least partially in the milling slot, where it Form the diaphragm wall can harden. Because of a possible Volume change of the soil material during the supply of the bindable However, liquid can be beneficial to one Part of the cleared soil with suspension from the To remove the milling slot. You can do this on the trench cutter or above ground at the edge of the milling slot be provided.
Grundsätzlich ist es möglich, das mindestens eine Fräsrad beim Abteufen des Frässchlitzes gleichförmig anzutreiben. Eine besonders gute Fräswirkung und/oder eine besonders gute Durchmischung des Bodenmaterials mit der abbindbaren Flüssigkeit kann aber dadurch erzielt werden, dass das mindestens eine Fräsrad reversierend angetrieben wird. Durch ein zeitweises Umkehren der Drehrichtung des Fräsrades bilden sich im Bodenmaterial Verwirbelungen aus, die für eine besonders gute Vermischung mit der abbindbaren Flüssigkeit sorgen. Bevorzugt wird das mindestens eine Fräsrad auch beim Ziehen der Schlitzwandfräse aus dem Frässchlitz gleichförmig oder reversierend angetrieben, wodurch sich der für das Ziehen notwendige Kraftaufwand deutlich verringern lässt und eine zusätzliche Durchmischung des abgeräumten Bodenmaterials mit der abbindbaren Flüssigkeit erreicht wird.Basically, it is possible to use at least one milling wheel Drill the milling slot uniformly. A special one good milling effect and / or particularly good mixing of the soil material with the settable liquid but can be achieved by having at least one milling wheel is driven reversibly. By turning back temporarily The direction of rotation of the milling wheel is formed in the soil material Whirls out for a particularly good mixing with the settable liquid. This is preferred at least one cutter wheel when pulling the trench cutter driven uniformly or reversibly from the milling slot, which increases the effort required to pull significantly reduced and additional mixing of the cleared soil material with the settable liquid is achieved.
Bei der Herstellung des Frässchlitzes kann die Schlitzwandfräse gleichförmig im Boden bewegt werden. Besonders vorteilhaft ist es jedoch, dass die Schlitzwandfräse dabei zumindest zeitweise in eine alternierende Aufwärts-/Abwärtsbewegung versetzt wird. Hierdurch wird eine besonders gute Durchmischung des abgetragenen Bodenmaterials mit der abbindbaren Flüssigkeit erzielt. Der Hub dieser alternierenden Aufwärts-/Abwärtsbewegung kann dabei deutlich geringer als die Gesamthöhe des Schlitzes sein. Er kann insbesondere in der Größenordnung des Durchmessers der Fräsräder liegen. Eine solche zumindest zeitweise durchgeführte abwechselnde Aufwärts- und Abwärtsbewegung kann dadurch erzielt werden, dass die Schlitzwandfräse von einem Baugerät angehoben und anschließend wieder abgelassen wird. Eine alternierende Aufwärts-/Abwärtsbewegung kann dabei sowohl beim Abteufen des Frässchlitzes als auch beim Ziehen der Schlitzwandfräse aus dem fertigen Frässchlitz durchgeführt werden.When making the milling slot, the trench cutter can be moved uniformly in the ground. Particularly advantageous it is, however, that the trench cutter at least temporarily in an alternating up / down movement becomes. This results in particularly good mixing of the removed material Soil material achieved with the settable liquid. The stroke of this alternating up / down movement can be significantly less than the total height of the slot his. It can in particular be of the order of magnitude of the diameter of the cutting wheels. At least temporarily alternating upward and downward movements performed can be achieved in that the trench cutter from one Construction equipment is raised and then lowered again. An alternating up / down movement can be both when sinking the milling slot as well as when pulling the Trench wall cutter carried out from the finished milling slot become.
Eine erfindungsgemäße Schlitzwandfräse ist dadurch gekennzeichnet, dass der Querschnitt des Rahmens kleiner als der Querschnitt des Frässchlitzes unter Bildung eines Freiraumes ausgebildet ist, durch welchen abgeräumtes Bodenmaterial von dem mindestens ein Fräsrad an dem Rahmen vorbei in einen rückwärtigen Bereich des Frässchlitzes förderbar ist.A trench cutter according to the invention is characterized in that that the cross section of the frame is smaller than that Cross section of the milling slot to form a free space is formed, through which cleared soil material from the at least one milling wheel past the frame into a rear Area of the milling slot is conveyable.
Ein Grundgedanke der erfindungsgemäßen Schlitzwandfräse ist es, in oder neben dem Rahmen einen Freiraum auszubilden, durch welchen abgeräumtes Bodenmaterial und Suspension beim Herstellen des Frässchlitzes und/oder beim Herausziehen der Schlitzwandfräse aus dem fertigen Frässchlitz möglichst ungehindert am Rahmen der Schlitzwandfräse vorbeiströmen kann. Hierdurch wird ein besonders schnelles und kraftsparendes Fräsen mit einem gleichzeitigen effizienten Mischeffekt ermöglicht. Zur Bildung des Freiraumes ist erfindungsgemäß vorgesehen, dass der Querschnitt des Rahmens senkrecht zur Vortriebsrichtung der Schlitzwandfräse den Frässchlitz niemals vollständig abdeckt. Dies kann dadurch erreicht werden, dass die Umfangsabmessungen des Querschnittes des Rahmens kleiner als die Innenabmessungen des Frässchlitzes sind und/oder dass im Querschnitt des Rahmens eine oder mehrere Öffnungen vorgesehen sind. Eine solche Anordnung erlaubt ein Durchströmen von abgeräumtem Bodenmaterial am Rahmen vorbei in die einer Bewegungsrichtung des Rahmens entgegengesetzten Richtung.A basic idea of the trench cutter according to the invention is it to form a free space in or next to the frame what cleared soil material and suspension when manufacturing the milling slot and / or when pulling out the trench cutter from the finished milling slot as freely as possible can flow past the frame of the trench cutter. hereby becomes a particularly fast and energy-saving milling with one enables efficient mixing effect at the same time. to According to the invention, formation of the free space is provided for the cross section of the frame perpendicular to the direction of advance the trench cutter never completely covers the milling slot. This can be achieved by making the circumferential dimensions the cross-section of the frame is smaller than the internal dimensions of the milling slot and / or that in cross section one or more openings are provided in the frame are. Such an arrangement allows cleared to flow through Floor material past the frame in one direction of movement opposite direction of the frame.
Bei einer besonders bevorzugten Schlitzwandfräse sind mehrere Fräsräder in beliebiger Anzahl vorgesehen, welche parallele Drehachsen aufweisen. Eine bevorzugte Ausführungsform weist vier Fräsräder auf, von denen jeweils zwei paarweise um dieselbe Drehachse drehbar angeordnet sind. Ein Querschnitt des Frässchlitzes ist bevorzugt rechteckig ausgebildet.In a particularly preferred trench wall cutter, there are several Any number of cutting wheels are provided, which are parallel Have axes of rotation. A preferred embodiment has four cutting wheels, two of which are paired around the same Rotational axis are rotatably arranged. A cross section of the Milling slot is preferably rectangular.
Bei einer vorteilhaften Ausführungsform der erfindungsgemäßen Schlitzwandfräse weist das mindestens eine Fräsrad eine für eine reversierende Drehbewegung geeignete Fräszahnanordnung auf. Eine solche Fräszahnanordnung kann anstehendes Bodenmaterial bei einer Drehung der Fräsräder sowohl im Uhrzeigersinn als auch im Gegenuhrzeigersinn abräumen. Dies ermöglicht eine besonders gute Durchmischung des Bodenmaterials bei einer gleichzeitig hohen Abbaugeschwindigkeit.In an advantageous embodiment of the invention Trench wall cutter has at least one milling wheel one for a reversing rotary movement suitable milling tooth arrangement on. Such a milling tooth arrangement can present soil material when turning the milling wheels both clockwise as well as counterclockwise clearing. This enables one particularly good mixing of the soil material with a at the same time high mining speed.
Grundsätzlich ist es möglich, eine Zuführungseinrichtung zum Zuführen einer Flüssigkeit, insbesondere einer abbindbaren Flüssigkeit, in den Frässchlitz an einer beliebigen Position im Frässchlitz vorzusehen. Besonders bevorzugt ist es jedoch, dass eine solche Zuführeinrichtung am Rahmen angeordnet ist. Insbesondere durch eine Anordnung nahe dem mindestens einem Fräsrad wird eine besonders gute Durchmischung des abgeräumten Bodenmaterials mit der Flüssigkeit erreicht. Basically, it is possible to use a feed device Supply of a liquid, in particular a settable Liquid, in the milling slot at any position to be provided in the milling slot. However, it is particularly preferred that such a feed device is arranged on the frame. In particular by an arrangement close to the at least one Milling wheel is a particularly good mix of the cleared Soil material reached with the liquid.
Eine erfindungsgemäße Schlitzwandfräsvorrichtung ist dadurch gekennzeichnet, dass die Schlitzwandfräse an dem Trägergerät mittels einer Linearführungseinrichtung verschiebbar geführt ist.This is a trench wall milling device according to the invention characterized that the trench cutter on the carrier device guided displaceably by means of a linear guide device is.
Gemäß einem Aspekt einer erfindungsgemäßen Schlitzwandfräsvorrichtung ist die Schlitzwandfräse nicht an der Wand des Frässchlitzes sondern an einem von der Schlitzwandfräse beabstandeten Trägergerät geführt. Die Führung erfolgt dabei insbesondere in einer zur Vortriebsrichtung der Schlitzwandfräse parallelen Richtung. Eine solche Anordnung ermöglicht es, den Querschnitt des Rahmens der Schlitzwandfräse möglichst klein auszugestalten. Insbesondere ist es nicht mehr zwingend notwendig, dass sich der Rahmen der Schlitzwandfräse für eine laterale Führung im Kontakt mit der Wand des Frässchlitzes befindet. Hierdurch kann der Rahmen ohne Führungselemente ausgestaltet werden und seine Abmessungen können entsprechend klein gehalten werden, was einen einfachen Durchgang von abgeräumten Bodenmaterial ermöglicht. Die Schlitzwandfräse kann beispielsweise an einer Führungseinrichtung eingesetzt werden, wie sie bei Rüttlern bekannt ist.According to one aspect of a diaphragm wall milling device according to the invention the trench cutter is not on the wall of the trench slot but at a distance from the trench cutter Carrier device led. The leadership takes place in particular in a direction parallel to the direction of advance of the trench cutter Direction. Such an arrangement enables the Cross section of the frame of the trench cutter as small as possible embody. In particular, it is no longer absolutely necessary that the frame of the trench cutter for a lateral The guide is in contact with the wall of the milling slot. As a result, the frame can be designed without guide elements and its dimensions can be adjusted accordingly be kept small, which is a simple passage of cleared Soil material allows. The trench cutter can for example used on a guide device, as it is known with vibrators.
Bei einer besonders bevorzugten Schlitzwandfräsvorrichtung weist die Linearführungseinrichtung eine Führungsstange, insbesondere eine Teleskopstange auf, an welcher die Schlitzwandfräse gelagert ist. Eine solche Führungsstange ermöglicht eine besonders gute laterale Führung der Schlitzwandfräse. Sie erlaubt insbesondere auch eine Übertragung einer in Vortriebsrichtung gerichteten Axialkraft vom Trägergerät auf die Schlitzwandfräse, wodurch ein besonders schneller Vortrieb der Schlitzwandfräse beim Abteufen erzielt werden kann. Grundsätzlich kann die Schlitzwandfräse aber auch so ausgebildet sein, dass sie sich bei rotierenden Fräsrädern lediglich aufgrund ihres Eigengewichtes in den Boden einfräst. In diesem Fall kann auch eine Führungsstange verwendet werden, die für die Übertragung einer in Vortriebsrichtung gerichteten Axialkraft nicht ausgelegt ist. In a particularly preferred trench wall milling device the linear guide device has a guide rod, in particular a telescopic rod on which the trench cutter is stored. Such a guide rod enables one particularly good lateral guidance of the trench cutter. she allows in particular also a transmission in the direction of advance directed axial force from the carrier to the Diaphragm wall milling machine, which means that the Trench cutter can be achieved when sinking. in principle the trench cutter can also be designed that they are only due to rotating milling wheels their own weight into the ground. In this case a guide rod can also be used for the Transmission of an axial force in the direction of advance is not designed.
Der Durchmesser der Führungsstange ist bevorzugt so bemessen, dass er kleiner als der Durchmesser des Querschnittes des Rahmens ist. Die Führungsstange hat dabei bevorzugt einen im Wesentlichen rechteckigen oder einen im Wesentlichen kreisförmigen Querschnitt. Als Teleskopstange kann bevorzugt auch eine Kelly-Stange verwendet werden.The diameter of the guide rod is preferably such that that it is smaller than the diameter of the cross section of the frame is. The guide rod preferably has essentially one rectangular or substantially circular Cross-section. A telescopic rod can also preferably be one Kelly rod can be used.
Eine besonders bevorzugte Schlitzwandfräsvorrichtung ist ferner dadurch gekennzeichnet, dass die Linearführungseinrichtung eine am Trägergerät angeordnete Führungshülse aufweist, durch welche die Führungsstange hindurchgeführt ist. Eine solche Führungshülse kann die Führungsstange ganz oder nur teilweise in Umfangsrichtung umgreifen. An der Führungshülse können Vorsprünge und/oder Vertiefungen ausgebildet sein, welche mit entsprechenden Vertiefungen und/oder Vorsprüngen an der Führungsstange in Eingriff stehen und damit eine drehfeste Führung der Führungsstange gewährleisten.A particularly preferred trench wall milling device is also characterized in that the linear guide device has a guide sleeve arranged on the carrier, by which the guide rod is passed through. Such Guide sleeve can completely or only partially the guide rod reach around in the circumferential direction. Projections can be made on the guide sleeve and / or depressions formed with corresponding depressions and / or projections on the guide rod are engaged and thus a non-rotatable guide ensure the guide rod.
Besonders vorteilhaft ist ferner, dass am Trägergerät ein Stellantrieb, insbesondere ein Seilzug-Mechanismus, zum vertikalen Verfahren der Führungsstange vorgesehen ist. Ein solcher Stellantrieb kann neben dem Herausziehen der Schlitzwandfräse aus dem Frässchlitz auch dazu ausgelegt sein, eine Axialkraft in Vortriebsrichtung der Schlitzwandfräse auf die Schlitzwandfräse zu übertragen. Hierdurch kann eine besonders gute Fräsleistung erreicht werden. Ferner kann der Stellantrieb so ausgelegt sein, dass er eine alternierende Aufwärts-/Abwärts-Bewegung der Schlitzwandfräse ermöglicht. Mögliche Ausführungsformen des Stellantriebs weisen einen ZahnstangenMechanismus oder einen hydraulischen Mechanismus auf.It is also particularly advantageous that on the carrier device Actuator, especially a cable pull mechanism, for vertical Movement of the guide rod is provided. Such a Actuator can be pulled out of the trench cutter from the milling slot also be designed to have an axial force in the direction of advance of the trench cutter on the trench cutter transferred to. This enables a particularly good milling performance can be achieved. The actuator can also be designed in this way be an alternating up / down movement the trench cutter enables. Possible embodiments of the actuator have a rack and pinion mechanism or a hydraulic mechanism.
Vorteilhafterweise weist die erfindungsgemäße Schlitzwandfräsvorrichtung die zuvor beschriebene Schlitzwandfräse auf. Mit beiden kann insbesondere das erfindungsgemäße Verfahren durchgeführt werden. The diaphragm wall milling device according to the invention advantageously has the trench wall cutter described above. With both can be carried out in particular the method according to the invention become.
Die Erfindung wird weiter anhand von bevorzugten Ausführungsbeispielen erläutert, welche schematisch in den Zeichnungen dargestellt sind. In den Zeichnungen zeigen:
- Fig. 1
- eine teilweise geschnittene Vorderansicht einer erfindungsgemäßen Schlitzwandfräse und einer Führungsstange;
- Fig. 2
- eine teilweise geschnittene Vorderansicht einer weiteren erfindungsgemäßen Schlitzwandfräse mit einer Führungsstange;
- Fig. 3
- eine Querschnittansicht der in Fig. 2 gezeigten Führungsstange entlang A-A;
- Fig. 4
- eine Seitenansicht einer erfindungsgemäßen Schlitzwandfräsvorrichtung;
- Fig. 5
- eine Seitenansicht einer weiteren erfindungsgemäßen Schlitzwandfräsvorrichtung;
- Fig. 6
- eine Teilansicht einer erfindungsgemäßen Schlitzwandfräsvorrichtung im hochgezogenen Zustand; und
- Fig. 7
- eine Teilansicht einer erfindungsgemäßen Schlitzwandfräsvorrichtung in einer Endstellung.
- Fig. 1
- a partially sectioned front view of a trench cutter according to the invention and a guide rod;
- Fig. 2
- a partially sectioned front view of another trench cutter according to the invention with a guide rod;
- Fig. 3
- a cross-sectional view of the guide rod shown in Figure 2 along AA.
- Fig. 4
- a side view of a trench wall milling device according to the invention;
- Fig. 5
- a side view of another trench wall milling device according to the invention;
- Fig. 6
- a partial view of a trench wall milling device according to the invention in the raised state; and
- Fig. 7
- a partial view of a trench wall milling device according to the invention in an end position.
Die Fig. 1 und 2 zeigen Vorderansichten zweier unterschiedlicher
Ausführungsbeispiele erfindungsgemäßer Schlitzwandfräsen
10. An einem als Trägerplatte ausgeführten Rahmen 20 sind zwei
Fräsräder 12, 12' drehbar befestigt. Die Fräsräder 12, 12'
sind dabei unmittelbar nebeneinander mit parallel verlaufenden
Drehachsen ausgebildet. Ein eingehauster und in Form von Hydraulikmotoren
ausgebildeter Antrieb 15, 15' ist am Rahmen 20
angebracht und mit den Fräsrädern 12, 12' wirkend verbunden.1 and 2 show front views of two different ones
Embodiments of trench wall milling according to the
Auf der den Fräsrädern 12, 12' abgewandten Seiten des Rahmens
20 ist dieser an einer Führungsstange 33 befestigt. Wie Fig. 3
entnommen werden kann, weist die Führungsstange 33 einen annähernd
kreisförmigen Querschnitt auf. Seitlich an der Führungsstange
33 sind Vorsprünge 35 ausgebildet, die zur drehfesten
Führung der Führungsstange 33 in der Führungshülse 34 dienen.
Innerhalb der Führungsstange 33 sind Versorgungsleitungen 40
für Hydraulikfluid angeordnet. Ferner ist in der Führungsstange
33 sowie am Rahmen 20 eine als Zuführungsleitung ausgebildete
Zuführungseinrichtung 41 für eine Flüssigkeit ausgebildet.
Wie in Fig. 2 gezeigt ist, tritt die als Zuführungsleitung
ausgebildete Zuführungseinrichtung 41 durch den Rahmen 20
hindurch und endet zwischen den Fräsrädern 12, 12'.On the side of the frame facing away from the milling
An den Fräsrädern 12, 12' sind umfangseitig Fräszähne 13 ausgebildet.
Die Fräszähne 13 sind dabei für einen gegenläufigen
Betrieb der Fräsräder angeordnet. Hierbei ist vorgesehen, dass
das in Fig. 2 links dargestellte Fräsrad 12 im Uhrzeigersinn,
das rechts dargestellte Fräsrad 12' im Gegenuhrzeigersinn zu
drehen ist. Hierdurch wird Suspension im mittleren Bereich
durch die Fräsräder 12, 12' angesaugt, während das abgefräste
Bodenmaterial zusammen mit Suspension an den Außenseiten nach
oben gefördert wird. Umfangsseitig an den Fräsrädern 12, 12'
sind zudem bekannte seitlich verschwenkbare Klappzähne 14 angeordnet,
welche Boden unterhalb des Getriebeschildes abräumen.Milling
Die Fig. 4 bis 7 zeigen eine erfindungsgemäße Schlitzwandfräsvorrichtung.
Die Schlitzwandfräsvorrichtung weist ein als raupengetriebenes
Baufahrzeug ausgebildetes Trägergerät 30 auf.
Am Trägergerät 30 ist ein Mast 31 gelagert, an dem wiederum an
zwei Befestigungspunkten eine Führungshülse 34 befestigt ist.
Durch die Führungshülse 34 verläuft in vertikaler Richtung die
Führungsstange 33, an deren unterem Ende die Schlitzwandfräse
10 befestigt ist. Ein Seilzug-Mechanismus 37 (Fig. 4) oder einer
Verschiebeeinrichtung 38 (Fig. 5) sind zum vertikalen Verfahren
der Führungsstange 33 vorgesehen. Versorgungsleitungen
40 für Hydraulikfluid sowie eine als Zuführungsleitung ausgebildete
Zuführungseinrichtung 41 für eine abbindbare Flüssigkeit
treten am oberen Ende der Führungsstange 33 aus dieser
heraus. Im hochgezogenen Zustand der Schlitzwandfräse 10 (Fig.
6) liegt die Schlitzwandfräse 10 mit ihrem Rahmen unmittelbar
an der Führungshülse 34 an.4 to 7 show a trench wall milling device according to the invention.
The diaphragm wall milling device has a track-driven one
Construction vehicle designed
Der Rahmen 20 der Schlitzwandfräse 10 ist so ausgebildet, dass
beim Abteufen (Fig. 7) ein Freiraum 6 zwischen dem Rahmen 20
und einer Wand des Frässchlitzes 3 entsteht. Dieser Freiraum 6
erlaubt den Durchgang von abgeräumtem Bodenmaterial am Rahmen
20 vorbei in einem rückwärtigen Bereich 4 des Frässchlitzes 3,
der sich oberhalb der Schlitzwandfräse 10 befindet.The
Claims (9)
dadurch gekennzeichnet, dass die Schlitzwandfräse (10) bei der Herstellung des Frässchlitzes (3) zumindest zeitweise in eine alternierende Aufwärts-/Abwärtsbewegung versetzt wird.Method for producing a diaphragm wall according to one of claims 1 or 2,
characterized in that the trench wall cutter (10) is at least temporarily set in an alternating up / down movement during the production of the milling slot (3).
dadurch gekennzeichnet,
characterized,
dadurch gekennzeichnet, dass das mindestens eine Fräsrad (12, 12') eine für eine reversierende Drehbewegung geeignete Fräszahnanordnung aufweist.Trench wall cutter (10) according to claim 4,
characterized in that the at least one milling wheel (12, 12 ') has a milling tooth arrangement suitable for a reversing rotary movement.
dadurch gekennzeichnet, dass die Linearführungseinrichtung eine Führungsstange (33), insbesondere eine Teleskopstange aufweist, an welcher die Schlitzwandfräse (10) gelagert ist.Diaphragm wall milling device (1) according to claim 6,
characterized in that the linear guide device has a guide rod (33), in particular a telescopic rod, on which the trench wall cutter (10) is mounted.
dadurch gekennzeichnet dass die Linearführungseinrichtung eine am Trägergerät (30) angeordnete Führungshülse (34) aufweist, durch welche die Führungsstange (33) hindurchgeführt ist.Diaphragm wall milling device (1) according to one of claims 6 or 7,
characterized in that the linear guide device has a guide sleeve (34) which is arranged on the carrier device (30) and through which the guide rod (33) is guided.
dadurch gekennzeichnet, dass am Trägergerät (30) ein Stellantrieb, insbesondere ein Seilzug-Mechanismus (37), zum vertikalen Verfahren der Führungsstange (33) vorgesehen ist.Diaphragm wall milling device (1) according to one of claims 6 to 8,
characterized in that an actuator, in particular a cable pull mechanism (37), is provided on the carrier device (30) for vertical movement of the guide rod (33).
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP06024531A EP1752583B1 (en) | 2003-02-27 | 2004-01-15 | Trench wall cutting apparatus and method for building a diaphragm wall in the ground |
SI200430490T SI1452645T2 (en) | 2003-02-27 | 2004-01-15 | Method for building a diaphragm wall in the ground and trench wall cutting apparatus |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10308538 | 2003-02-27 | ||
DE10308538.6A DE10308538C5 (en) | 2003-02-27 | 2003-02-27 | Method of making a trench wall in the ground, trench wall cutter and trench wall cutter |
Related Child Applications (2)
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EP06024531A Division EP1752583B1 (en) | 2003-02-27 | 2004-01-15 | Trench wall cutting apparatus and method for building a diaphragm wall in the ground |
EP06024531.3 Division-Into | 2006-11-27 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1452645A1 true EP1452645A1 (en) | 2004-09-01 |
EP1452645B1 EP1452645B1 (en) | 2007-09-12 |
EP1452645B2 EP1452645B2 (en) | 2013-05-01 |
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ID=32748085
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EP06024531A Expired - Lifetime EP1752583B1 (en) | 2003-02-27 | 2004-01-15 | Trench wall cutting apparatus and method for building a diaphragm wall in the ground |
EP04000766.8A Expired - Lifetime EP1452645B2 (en) | 2003-02-27 | 2004-01-15 | Method for building a diaphragm wall in the ground and trench wall cutting apparatus |
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EP06024531A Expired - Lifetime EP1752583B1 (en) | 2003-02-27 | 2004-01-15 | Trench wall cutting apparatus and method for building a diaphragm wall in the ground |
Country Status (17)
Country | Link |
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US (2) | US7152346B2 (en) |
EP (2) | EP1752583B1 (en) |
JP (1) | JP3761889B2 (en) |
KR (1) | KR100572023B1 (en) |
CN (2) | CN1928262B (en) |
AT (2) | ATE416277T1 (en) |
CA (1) | CA2457229C (en) |
CY (1) | CY1108828T1 (en) |
DE (3) | DE10308538C5 (en) |
DK (1) | DK1752583T3 (en) |
ES (2) | ES2293103T5 (en) |
HK (2) | HK1067393A1 (en) |
PL (1) | PL209264B1 (en) |
PT (2) | PT1752583E (en) |
RU (1) | RU2275469C2 (en) |
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SI (2) | SI1752583T1 (en) |
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