EP3719207B1 - Underground wall milling device and method for creating a milled slit in the ground - Google Patents
Underground wall milling device and method for creating a milled slit in the ground Download PDFInfo
- Publication number
- EP3719207B1 EP3719207B1 EP19167353.2A EP19167353A EP3719207B1 EP 3719207 B1 EP3719207 B1 EP 3719207B1 EP 19167353 A EP19167353 A EP 19167353A EP 3719207 B1 EP3719207 B1 EP 3719207B1
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- EP
- European Patent Office
- Prior art keywords
- trench
- cutter
- trench wall
- milling
- modules
- 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.)
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- 238000000034 method Methods 0.000 title claims description 18
- 238000003801 milling Methods 0.000 title description 143
- 239000000463 material Substances 0.000 claims description 11
- 239000000725 suspension Substances 0.000 claims description 9
- 238000006073 displacement reaction Methods 0.000 description 11
- 238000011161 development Methods 0.000 description 7
- 230000018109 developmental process Effects 0.000 description 7
- 239000002689 soil Substances 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000036346 tooth eruption Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
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- 230000008859 change Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000012050 conventional carrier Substances 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
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- 238000005259 measurement Methods 0.000 description 1
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Images
Classifications
-
- 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
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/2025—Particular purposes of control systems not otherwise provided for
- E02F9/2045—Guiding machines along a predetermined path
Definitions
- a so-called trench wall cutter is arranged vertically adjustable on a mast or cantilever arm.
- the masts or cantilever arms on the carrier devices usually have a height of 15 m to 30 m or more. The height of the mast is largely determined by the height of the trench wall cutter.
- Such diaphragm wall milling devices are used to create diaphragm or cut-off walls which can reach depths of up to 100 m and more. Such slotted or sealing walls are used for.
- This trench wall milling device has a rail-guided carriage with a frame and a cantilever arm, which is only insignificant is higher than a vertical length of a trench cutter.
- a cable drum for a support cable and connecting cable and a hose drum for a supply hose are mounted on the support frame close to the ground.
- the trench wall cutter is limited to the essential components, such as cutting wheels, drives, pumps, with a guide frame being designed to be small.
- the height of use is essentially limited by the height of the trench wall milling machine.
- a trench wall cutter cannot be reduced in size at will, since a certain size is required for the cutting wheels, the drives, the pump and, in particular, for a guide frame.
- a trench wall cutter is known in which a maintenance time for changing the cutting teeth on the cutting wheels can be reduced. This is achieved by not replacing individual cutting teeth but a cutting head on the milling frame as a whole.
- the invention is based on the object of specifying a trench wall milling device and a method for milling a trench in the ground, with which efficient milling is made possible even under particularly cramped spatial conditions.
- a trench wall milling device is provided with a trench wall milling cutter, which is made up of at least two milling cutter modules, and a supporting structure for suspending and moving the trench wall milling cutter in a vertical direction for forming a cut trench in the ground, the supporting structure has a guide device which is designed to feed the separate milling modules to a work area at which the milling slot is to be created.
- a basic idea of the invention can be seen in dividing the trench wall cutter into at least two cutter modules which are detachably connected to one another. Furthermore, a support structure is provided for suspending and moving the trench wall cutter in a vertical direction to form the cut trench, the support structure additionally having a guide device for feeding the separate cutter modules. According to the invention, it is therefore no longer necessary to transport a ready-to-use trench wall cutter to a work area at which the cut trench is being created. Instead, according to the invention, the trench wall cutter is divided into its milling modules and fed to the work area and only there assembled into the trench wall cutter.
- the support structure is designed with a corresponding guide or transport device.
- the supporting structure can preferably have an overall height which is smaller than the height of the ready-to-use trench cutter. The supporting structure only needs to be the same height or higher than the height of the milling module.
- milling can also be carried out at work sites where only a very low working height is available, which is even lower than the height of the assembled trench cutter.
- This can be the case in particular if a so-called guide slot, which can have a depth of about 1 m to 4 m, is prefabricated in the work area, so that one or more cutter modules can already be inserted into the guide slot when assembling the trench wall cutter.
- the trench wall milling device according to the invention cannot only be used in tunnels or in buildings. Due to the very low overall height, which can be less than 5 m and also less than 3 m, the trench wall milling device can be provided or surrounded overall with a privacy, dust protection and/or sound insulation cover. It is even possible to permanently install the entire trench wall milling device in one or two or three standard containers. This can be particularly the case when milling in cities, inhabited areas, airports or other infrastructure projects, buildings or other sensitive construction site areas.
- a preferred embodiment of the invention consists in that a first milling module with milling wheels and a second milling module with at least one drive unit are provided.
- the first cutter module can have the lower section of the trench wall cutter with the cutting wheels and the bearings of the cutting wheels on a base support.
- the second milling module contains at least one drive unit, preferably for a pump device, which is designed in particular for flushing and/or pumping out suspension with the ground material that has been milled off.
- this or another drive unit can also be for the cutting wheels.
- guide elements for guiding and adjusting the milling cutter in the milling slot can also be arranged on the second milling module.
- extendable adjusting elements can be provided, which can be executed by means of adjusting cylinders, in order to adjust the trench wall cutter in relation to the trench walls.
- the trench wall cutter can be constructed from a large number of other cutter modules, which can have different functions. It is particularly preferred that at least one further milling module is provided, which has a guide frame.
- the guide frame can be purely passive as a scaffold-like frame with contact elements for positioning and guiding along the milled trench walls. Preferably, these plate-shaped elements can also be raised in order to bring about a relative change in position in the milled slot.
- a plurality of such milling modules with guide frames can be arranged, the guiding accuracy and guiding stability of the trench wall cutter in the cut trench being increased with an increasing height of the guide frame. In this way, cut trenches with great depths of up to 100 m and more can be created with good guiding accuracy, even with limited construction heights.
- a support device is arranged on at least one, preferably the uppermost cutter module, with which the trench wall cutter is held on the support structure via a support cable or a rod-shaped support device.
- the support structure has at least one guide rail along which the individual cutter modules are mounted so that they can be displaced transversely to the cut trench.
- the support structure therefore not only allows the trench wall cutter to be displaced vertically in a driving direction, but also a displacement of the individual cutting modules transversely to this driving direction. This allows efficient feeding and removal of the individual milling modules and expedient assembly and disassembly.
- a displacement device in principle, can be done by hand with suitable bearings.
- a displacement drive for displacing the milling module.
- This can be a motor with a pinion, for example, which causes a movement along a rack, for example.
- a cable mechanism with a cable winch or a linear actuating cylinder or any other suitable drive device can also be provided.
- the drive can preferably be operated electrically or hydraulically.
- the milling modules can be connected in any suitable manner that enables the quickest possible detachment and connection.
- the cutter modules have connecting surfaces which are directed transversely and/or longitudinally to a longitudinal or cutting direction of the trench wall cutter. As a result, connecting surfaces are created that are as large as possible, which allow a particularly stable connection between the individual milling modules.
- connection devices are both mechanical connection devices in order to couple the milling modules to one another in a stable and firm manner.
- the connecting devices can also include devices for connecting supply hoses and lines, for example for electrical energy and for data transmission.
- quick-connect devices can also be provided. These can be operated manually or at least partially by means of appropriately driven actuators, such as actuating cylinders.
- the lines between supply units are preferred and tiller modules are not separated and therefore no longer have to be connected when installing the tiller.
- each milling module can be assigned its own supply unit with a direct line connection.
- the supporting structure can be built up compactly from steel girders, with the supporting structure being arranged exclusively at the work area.
- a particularly efficient mode of operation of the trench wall milling device can be achieved in that the supporting structure extends along a working area in which adjacent milled slots are made.
- the trench cutter can be moved along the supporting structure by dismantling the individual cutter modules and reassembled to form a cut trench in order to create a second or further cut in the work area. In this way, a continuous milled slot can be created in an efficient manner, such as is desired for a diaphragm or cut-off wall.
- the support structure can be constructed individually from support elements.
- An advantageous embodiment variant of the trench wall milling device according to the invention can be seen in the fact that the supporting structure can be moved or moved.
- the support structure can be moved in whole or in part by means of a hoist or by means of a traversing device, such as a walking mechanism, which can also be part of the support structure.
- Longer milled slots can also be produced with such a mobile support structure, which are produced from a large number of individual slots lying next to one another.
- a further preferred embodiment of the invention consists in that at least one lifting unit for vertically moving the trench wall cutter is arranged on the supporting structure.
- the lifting unit is preferably designed as a winch arrangement with a carrying cable or as a telescoping linkage.
- the lifting unit has a corresponding lifting drive, such as a rotary drive. This can be operated electrically or hydraulically.
- the lifting unit itself can be mounted in modular form as an easily detachable and adjustable module on the supporting structure.
- At least one corresponding deflection roller can, for example a carrying cable from the winch arrangement of the lifting unit along an upper area of the supporting structure to the trench wall cutter and be releasably connected thereto.
- the at least one deflection roller can be rotatably mounted on a roller carriage, which is movably mounted on the supporting structure.
- At least one supply unit with at least one hose and/or cable reel is arranged on the supporting structure.
- the one or more supply units can also be mounted on the supporting structure as easily detachable and displaceable modules.
- the hoses can be designed for supplying and removing suspension or hydraulic fluid to the trench wall cutter.
- the lines on the cable drums can be designed to transmit electrical energy, hydraulic fluid or as data lines.
- the lifting unit and the supply unit can also be formed together on one module or one unit.
- the support structure can be of any design. It is preferred that the support structure has vertical supports on which the at least one guide rail is held at a distance from the floor. In this way, the milling modules can be reliably slid along the support structure along one or more parallel guide rails and assembled at the work site.
- the individual milling modules can have attachment points for attaching the lifting unit, in particular a support cable, so that the individual milling modules can be lifted into a guide slot or out of the milled slot and then moved along the supporting structure.
- the invention also relates to a trench wall cutter, which is characterized in that it is made up of at least two cutter modules which have essentially the same height.
- This trench wall cutter can preferably be used with the trench wall cutter device described above.
- the trench wall cutter can also be used independently of this, in particular of the support structure described above and can also be used, for example, on conventional carrier devices.
- the design of the individual milling modules with the same height and with a fundamental the same cross-section allows good and uniform transportability of the individual modules.
- the height of the milling modules is not higher than twice the diameter of the milling wheels.
- the diameter of the cutter wheels is typically between 0.5 m and 2.5 m. Accordingly, the possible height of the cutter modules is between 0.5 m and 5 m. The difference in the heights of the individual cutter modules is no more than 20%, especially not more than 10%.
- the height of the milling module is not higher than 3 m.
- the milling modules can thus be accommodated in a standard container or at least in a so-called high-cube container for transport purposes, which is readily suitable for road transport.
- the compact height of the milling module according to the invention allows it to be used in tunnels, cellars or other cramped spaces.
- one or more standard or high-cube containers can be provided as an enclosure or housing for use with the trench cutter.
- a trench wall cutter which is characterized in that it is made up of at least two cutter modules which are mechanically detachably connected to one another, with a first cutter module with the cutter wheels being connected directly to a first supply unit independently of the second cutter module power supply is connected.
- This trench wall cutter according to the invention can also be provided in combination with the previously described trench wall milling device or as a further development of the aforementioned trench wall cutter with essentially the same height of the cutter modules.
- this trench cutter according to the invention is preferably independent of this.
- An essential advantage of the trench wall cutter according to the invention is that the at least two cutter modules only have to be assembled mechanically, without a line connection between the at least two cutter modules having to be closed.
- the first milling module with the milling wheels is directly connected to a first supply unit via a supply line, which directly from the first supply unit leads to the first milling module.
- the at least one further milling module can be free of an energy supply.
- the further milling module serves as a passive guide frame.
- a preferred development of the trench wall cutter according to the invention is that the at least one second cutter module is also connected to an independent supply unit. This can be provided, for example, for actuating control elements for controlling the trench wall cutter in the trench.
- a respective supply line from a first supply unit to a first cutter module and from a second supply unit to a second cutter module can be arranged on the opposite narrow sides of the trench wall cutter.
- a method for cutting a cut trench in the ground with the above-described trench wall cutting device or one of the trench wall cutters is provided, in particular in which a supporting structure is arranged with a guide device, and a trench wall cutter is arranged on the supporting structure and lowered into the ground in a vertical direction ground material is milled off in a working area and the cut trench is thus formed, with the trench wall cutter being constructed from at least two cutter modules which are fed separately from one another by means of the guide device to the working area and are connected to one another at the working area to form the trench wall cutter.
- This method can also be used to mine mineral resources that are located below a so-called micro tunnel created for this purpose.
- a particularly advantageous method variant of the invention can be seen in the fact that at least two adjacent milled trenches are created, after the creation of a first milled trench, the trench wall cutter is withdrawn from the first milled trench, separating the cutter modules, and that to form a further cut trench, the cutter modules are moved along the guide device and reconnected to the trench wall cutter, which is then lowered into the ground while soil material is cut away.
- this method several milled slots can be efficiently produced with good milling guidance and with relatively large milling depths, even in confined spaces.
- the adjacent milled slots do not have to be directly adjacent to one another.
- the at least one cut trench is filled with a settable suspension, which hardens to form the diaphragm wall.
- the filling with a settable suspension can already take place during the milling in a so-called one-phase process or by a final replacement of a supporting suspension with a settable suspension in a so-called two-phase process.
- FIG. 1 to 4 is shown in various views of a trench wall milling device 10 according to the invention, which for installation in a tunnel an approximately circular tunnel cross section is formed.
- the trench wall milling device 10 according to Figures 1 to 4 is shown in a rest or home position before a milling method according to the invention is carried out.
- the trench wall milling device 10 has a framework-like supporting structure 20, which is also described in more detail in figure 5 is shown.
- the support structure 20 includes a lattice-like floor support 21, which is made up of longitudinal and transverse beams. Furthermore, a correspondingly grid-like or ladder-like construction of the ceiling area 23 is provided, which is carried by the floor support 21 via a large number of vertical supports 22 .
- a guide device 24 with guide rails 25 can be formed along the ceiling area 23 and also along the floor support 21, the function of which will be described in more detail below.
- the longitudinal beams of both the floor support 21 and the ceiling area 23 can form guide rails 25 of a displacement device 26 .
- a first auger module 40 is disposed within the auger section 28 in the quiescent or home state.
- the first milling module 40 has a base frame 44 with milling wheels 42 arranged thereon.
- the first milling module 42 is mounted displaceably along the upper guide rails 25 in a longitudinal direction of the supporting structure 20 via the base frame 44 .
- a first supply unit 80 with a rotatable cable drum 82 for a plurality of cables 84 is slidably mounted on a first support carriage 86 in relation to the milling section 28 on the left side of the supporting structure 20 .
- the lines 84 can be embodied as data lines for electrical power or for the supply of hydraulic energy or compressed air to the first milling module 40 with the milling wheels 42 .
- the first support carriage 86 is mounted in a longitudinally displaceable and lockable manner both along the guide rails 25 on the ceiling area 23 and along guide rails 25 on the floor support 21 .
- the first supply unit 80 is connected directly to the first milling module 40 .
- a hose line 74 of the hose reel 72 is shown.
- the hose line 74 can be designed for removing milled soil material with support liquid.
- Additional lines 75 on the line drum 73 can be electrical lines for control or measurement signals or for supplying and removing hydraulic fluid. The further supply and removal of the media into and out of the supporting structure 20 takes place in the usual way by means of lines and hoses and is not shown for reasons of clarity.
- the first milling module 40 is in 6 shown in more detail.
- Two pairs of cutting wheels 42 are rotatably mounted on a base frame 44 which is approximately U-shaped in cross section.
- Two milling wheels 42 each are rotatably mounted on a central milling shield 43 which is attached to an underside of the base frame 44 .
- the cutting wheels 42 are provided, in a manner known in principle, on their outside with removal teeth for removing soil material.
- a second milling module 50 which consists of a box-shaped guide frame 54 .
- the cross section of the guide frame 54 roughly corresponds to the cut cross section of the first cutter module 40, so that the trench wall cutter is guided through the guide frame 54 in the cut trench itself.
- plate-shaped adjusting elements 56 are provided in a basically known manner by means of hydraulic cylinders, with which a certain position adjustment relative to the walls of the cut trench is made possible.
- Second connecting surfaces 58 are provided on the guide frame 54 , which enable a precisely positioned connection to the first connecting surfaces 48 on the first milling module 40 .
- a drive unit 52 is mounted, which is designed as a pump device.
- a holding device 55 for attaching a carrying cable is provided on a top side of the guide frame 54 in a central area.
- the previously mentioned displacement carriage 27 is in 8 shown in more detail.
- This has a carriage frame 34, on the outside of which four guide rollers 35 are rotatably mounted. With the guide rollers 35, the displacement carriage 27 is guided linearly on or in the guide rails 25 of the guide device 24 on the supporting structure 20.
- the guide rollers 35 are arranged in pairs opposite one another, with an intermediate space being formed between the two pairs, in which two laterally opposite deflection rollers 36 for the cable 64 for holding the second cutter module 50 and thus the trench wall cutter as a whole are arranged.
- the approximately horizontally guided cables 64 are deflected vertically downwards by the winch 62 by means of the deflection rollers 36 .
- arcuate hose guides 37 embodied approximately in the shape of a quarter circle are arranged on the carriage frame 34 .
- the horizontally supplied hose line 74 and the lines 75 are deflected in a vertical direction to the trench wall cutter by these hose guides 37 .
- the already mentioned second supply unit 70 is shown in more detail.
- This has a second support carriage 76 in which a hose reel 72 for a large hose line 74 for a fluid and a line reel 73 for two hydraulic hoses 75 and two electrical lines 75 are rotatably mounted.
- a winch drum of the winch 62 for two cables 64 running parallel to one another is rotatably mounted in a rear region of the second support carriage 76 .
- four guide rollers 35 are arranged evenly distributed and rotatably mounted. With the guide rollers 35, the second supply unit 70 is mounted to be longitudinally displaceable along the guide rails 25 on the ceiling area 23 of the supporting structure 20.
- the first supply unit 80 educated.
- This includes a first support carriage 86 on which a cable drum 82 is rotatably mounted.
- the first support carriage 86 is provided on its side walls with three upper guide rollers 35 which are linearly guided along the guide rails 25 on the ceiling area 23 of the support structure 20 .
- Farther two lateral support rollers 38 are rotatably mounted on a lower region of the first support carriage 86, which rest along the guide rails 25 on the floor support 21 and are linearly guided along this.
- a quarter-circle-shaped, arc-like deflection guide 88 is arranged on one end face of the first support carriage 86, with which lines can be deflected from the line drum 82 from the horizontal to a vertical in the direction of the trench wall cutter.
- Locking devices 89 are used to connect to the first milling module 40 by inserting them into the receptacles 41 (see figure 6 ) are introduced on the first milling module 40, e.g. B. by being extended horizontally by means of hydraulic cylinders.
- the z. B. can include one or two hydraulic cylinders, so that the first milling module 40 can be lowered into the guide slot or raised again after completion of the slot.
- a guide slot 6 with fixed guide walls 7 is created in a basically known manner at the bottom of the tunnel tube 5.
- the guide walls 7 can be concreted or formed by inserted guide elements made of concrete or steel.
- the guide slot 6 can have a depth of between 1 m and 5 m and is created in a basically known manner, for example by an excavator or by means of a sword cutter.
- the guide slot 6 is used in a basically known manner to initially guide the trench cutter along the guide walls 7.
- the guide slot is also used as an assembly space for mounting and connecting the first cutter module 40 to the second cutter module 50, as will be explained in more detail below.
- the diaphragm wall milling device used in the tunnel tube 5 corresponds to the diaphragm wall milling device 10 described above and has a scaffold-like supporting structure 20 as its essential components, in which a first milling module 40, a second milling module 50 as well as a first supply unit 80 and a second supply unit 70 are guided and held in a linearly displaceable manner are.
- the supporting structure 20 is adapted to the tunnel tube 5 , with a floor support 21 being supported on the floor of the tunnel tube 5 and a ceiling area 23 of the supporting structure 20 being supported on a ceiling of the tunnel tube 5 . It is also possible that the trench wall milling device 10 is not supported on the ceiling but only on the floor.
- the tunnel tube 5 can have a diameter of about 2 m to 6 m. With a correspondingly large tunnel cross-section, lateral support for the trench wall milling device 10 is also conceivable, without this taking up the lateral free space which, for. B. can be used as a transport, restricts.
- the first milling module 40 with the milling wheels 42 is connected to the first supply unit 80 via the locking device 89 and then at least partially lowered into the prefabricated guide slot 6 by means of the lifting device 90, so that the second milling module 50 is pushed along the supporting structure 20 over the first milling module 40 can be.
- the second supply unit 70 can be displaced and tracked in accordance with the second milling module 50 .
- the first cutter module 40 can be assembled and connected to the second cutter module 50 to form the ready-to-use trench cutter 30, which is shown in FIGS Figures 15 and 16 is shown.
- a locking between the first milling machine module 40 and the first supply unit 80 can be released via the locking device 89.
- the trench wall cutter 30 can then be lowered into the ground via the carrying cable 64 while the cutting wheels 42 rotate, and the ground material can be removed to form the cut trench.
- the hose line 74 and the lines 75 from the second supply unit 70 can also be connected to the trench wall cutter 30, while the lines 84 from the first Supply unit 80 are permanently connected.
- the lines between the first supply unit 80 and the first milling module 30 and the lines between the second supply unit 70 and the second milling module are each permanently connected and no longer have to be connected during assembly.
- the milled soil material can be pumped out via the suction nozzle 45 by means of the drive unit 52 designed as a pump device and conveyed away by means of the hose line 74 outside the milled slot into the tunnel tube 5 and from there outside the tunnel tube 5 .
- the trench wall cutter 30 can be pulled back up and dismantled in the reverse manner. After relocating the trench wall milling device 10 with the supporting structure 20 as a whole or by linearly displacing the milling modules 40, 50 along the supporting structure 20 to a new work area, the assembly step can then be repeated for reassembling the trench wall milling machine 30 and for carrying out milling of a trench again.
- the support structure 20 can be designed not only as one part, as shown in the previous exemplary embodiment, but also in several parts, consisting of a number of components which are spaced apart from one another or are connected to one another via swivel joints.
- a control stand can be provided for controlling the trench wall cutter 30, which is preferably provided on the supporting structure 20 or in the area of the trench wall cutter 30 itself.
- the trench wall cutter 30 can also be formed directly on the trench wall cutter 30 without a suction device.
- a corresponding suction device can be arranged in the area of the supporting structure 20 .
- a suction device in particular a pump, can be arranged on the first milling module 40 with the milling wheels 42 or on the second milling module 50 directly above the milling wheels 42 .
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- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Paleontology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Working Measures On Existing Buildindgs (AREA)
- Sewage (AREA)
- Road Repair (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
- Multi-Process Working Machines And Systems (AREA)
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- Earth Drilling (AREA)
Description
Die Erfindung betrifft eine Schlitzwandfräsvorrichtung gemäß dem Oberbegriff des Anspruchs 1. Weiterhin betrifft die Erfindung ein Verfahren zum Fräsen eines Frässchlitzes im Boden mit einer solchen Schlitzwandfräsvorrichtung gemäß dem Oberbegriff des Anspruchs 13.The invention relates to a trench wall milling device according to the preamble of claim 1. The invention also relates to a method for milling a milled trench in the ground with such a trench wall milling device according to the preamble of
Zum Erstellen von Schlitzen im Boden ist es bekannt, Schlitzwandfräsvorrichtungen vorzusehen, wie sie beispielsweise aus der
Mit solchen Schlitzwandfräsvorrichtungen werden Schlitz- oder Dichtwände erstellt, welche Tiefen von bis zu 100 m und mehr erreichen können. Derartige Schlitz- oder Dichtwände dienen z. B. der Abstützung von Baugruben oder zum Erstellen einer Grundwassersperrung. Es ist auch möglich, mit solchen Fräsen Bodenschätze abzubauen.Such diaphragm wall milling devices are used to create diaphragm or cut-off walls which can reach depths of up to 100 m and more. Such slotted or sealing walls are used for. B. the support of construction pits or to create a groundwater blockage. It is also possible to mine mineral resources with such milling machines.
In bestimmten Fällen ist es erforderlich, eine Dichtwand in oder nahe an einem Bauwerk, in einem Tunnel oder unter beengten Raumverhältnissen zu erstellen. Hierfür können Trägergeräte mit großen Masten und großen Schlitzwandfräsen nicht eingesetzt werden.In certain cases it is necessary to build a cut-off wall in or near a structure, in a tunnel or in a confined space. Carriers with large masts and large trench cutters cannot be used for this.
Aus der
Eine weitere kompakte Schlitzwandfräsvorrichtung geht aus der
Bei diesen bekannten kompakten Schlitzwandfräsvorrichtungen ist eine Einsatzhöhe im Wesentlichen durch die Höhe der Schlitzwandfräse begrenzt. Dabei kann eine Schlitzwandfräse nicht beliebig verkleinert werden, da für die Fräsräder, die Antriebe, die Pumpe und insbesondere für einen Führungsrahmen eine bestimmte Größe benötigt werden.With these known compact trench wall milling devices, the height of use is essentially limited by the height of the trench wall milling machine. A trench wall cutter cannot be reduced in size at will, since a certain size is required for the cutting wheels, the drives, the pump and, in particular, for a guide frame.
Aus der gattungsbildenden
Der Erfindung liegt die Aufgabe zugrunde, eine Schlitzwandfräsvorrichtung und ein Verfahren zum Fräsen eines Schlitzes im Boden anzugeben, mit welchen auch unter besonders beengten Raumverhältnissen ein effizientes Fräsen ermöglicht wird.The invention is based on the object of specifying a trench wall milling device and a method for milling a trench in the ground, with which efficient milling is made possible even under particularly cramped spatial conditions.
Die Aufgabe wird zum einen mit einer Schlitzwandfräsvorrichtung nach Anspruch 1 und zum anderen mit einem Verfahren nach dem Anspruch 13 gelöst. Bevorzugte Ausführungsformen der Erfindung sind in den jeweils abhängigen Ansprüchen angegeben.The object is achieved on the one hand with a trench wall milling device according to claim 1 and on the other hand with a method according to
Gemäß der Erfindung ist eine Schlitzwandfräsvorrichtung mit einer Schlitzwandfräse, welche aus zumindest zwei Fräsenmodulen aufgebaut ist, und einer Tragkonstruktion zum Aufhängen und Bewegen der Schlitzwandfräse in einer vertikalen Richtung zum Bilden eines Frässchlitzes im Boden vorgesehen, wobei die Tragkonstruktion eine Führungseinrichtung aufweist, welche zum Zuführen der getrennten Fräsenmodule zu einem Arbeitsbereich ausgebildet ist, an welchem der Frässchlitz zu erstellen ist.According to the invention, a trench wall milling device is provided with a trench wall milling cutter, which is made up of at least two milling cutter modules, and a supporting structure for suspending and moving the trench wall milling cutter in a vertical direction for forming a cut trench in the ground, the supporting structure has a guide device which is designed to feed the separate milling modules to a work area at which the milling slot is to be created.
Eine Grundidee der Erfindung kann darin gesehen werden, die Schlitzwandfräse in mindestens zwei Fräsenmodule aufzuteilen, welche miteinander lösbar verbunden sind. Weiterhin wird eine Tragkonstruktion zum Aufhängen und Bewegen der Schlitzwandfräse in einer vertikalen Richtung zum Bilden des Frässchlitzes vorgesehen, wobei die Tragkonstruktion zusätzlich eine Führungseinrichtung zum Zuführen der getrennten Fräsenmodule aufweist. Gemäß der Erfindung ist es also nicht mehr notwendig, eine voll einsatzbereite Schlitzwandfräse zu einem Arbeitsbereich zu transportieren, an welchem der Frässchlitz erstellt wird. Vielmehr wird nach der Erfindung die Schlitzwandfräse aufgeteilt in ihre Fräsenmodule zu dem Arbeitsbereich zugeführt und erst dort zu der Schlitzwandfräse zusammengesetzt. Hierzu ist die Tragkonstruktion mit einer entsprechenden Führungs- oder Transporteinrichtung ausgebildet. Die Tragkonstruktion kann vorzugsweise eine Bauhöhe aufweisen, welche kleiner als eine Höhe der einsatzbereiten Schlitzwandfräse ist. Die Tragkonstruktion braucht nur gleich hoch oder höher als die Höhe der Fräsenmodule sein.A basic idea of the invention can be seen in dividing the trench wall cutter into at least two cutter modules which are detachably connected to one another. Furthermore, a support structure is provided for suspending and moving the trench wall cutter in a vertical direction to form the cut trench, the support structure additionally having a guide device for feeding the separate cutter modules. According to the invention, it is therefore no longer necessary to transport a ready-to-use trench wall cutter to a work area at which the cut trench is being created. Instead, according to the invention, the trench wall cutter is divided into its milling modules and fed to the work area and only there assembled into the trench wall cutter. For this purpose, the support structure is designed with a corresponding guide or transport device. The supporting structure can preferably have an overall height which is smaller than the height of the ready-to-use trench cutter. The supporting structure only needs to be the same height or higher than the height of the milling module.
Somit kann grundsätzlich auch ein Fräsen an Arbeitsorten durchgeführt werden, an welchen lediglich eine sehr geringe Arbeitshöhe zur Verfügung steht, welche sogar geringer als die Höhe der zusammengesetzten Schlitzwandfräse ist. Dies kann insbesondere dann gegeben sein, wenn am Arbeitsbereich ein sogenannter Führungsschlitz, welcher etwa eine Tiefe von 1 m bis 4 m aufweisen kann, vorgefertigt ist, so dass ein oder mehrere Fräsenmodule beim Zusammensetzen der Schlitzwandfräse bereits in den Führungsschlitz eingesetzt werden können.Thus, in principle, milling can also be carried out at work sites where only a very low working height is available, which is even lower than the height of the assembled trench cutter. This can be the case in particular if a so-called guide slot, which can have a depth of about 1 m to 4 m, is prefabricated in the work area, so that one or more cutter modules can already be inserted into the guide slot when assembling the trench wall cutter.
Die erfindungsgemäße Schlitzwandfräsvorrichtung kann aber nicht nur in Tunneln oder in Gebäuden eingesetzt werden. Aufgrund der sehr geringen Bauhöhe, die kleiner als 5 m und auch kleiner als 3 m sein kann, kann die Schlitzwandfräsvorrichtung insgesamt mit einer Sichtschutz-, Staubschutz- und/oder Schalldämmumhüllung versehen oder umgeben sein. Es ist dadurch sogar möglich, die gesamte Schlitzwandfräsvorrichtung in einem oder zwei bis drei Standardcontainern fest zu installieren. Dies kann insbesondere bei einem Fräsen in Städten, bewohnten Gebieten, Flughäfen oder anderen Infrastrukturprojekten, Gebäuden oder anderen sensitiven Baustellenbereichen vorteilhaft sein.However, the trench wall milling device according to the invention cannot only be used in tunnels or in buildings. Due to the very low overall height, which can be less than 5 m and also less than 3 m, the trench wall milling device can be provided or surrounded overall with a privacy, dust protection and/or sound insulation cover. It is even possible to permanently install the entire trench wall milling device in one or two or three standard containers. This can be particularly the case when milling in cities, inhabited areas, airports or other infrastructure projects, buildings or other sensitive construction site areas.
Eine bevorzugte Ausführungsform der Erfindung besteht darin, dass ein erstes Fräsenmodul mit Fräsrädern und ein zweites Fräsenmodul mit zumindest einer Antriebseinheit vorgesehen sind. Das erste Fräsenmodul kann dabei den unteren Abschnitt der Schlitzwandfräse mit den Fräsrädern und den Lagern der Fräsräder an einem Grundträger aufweisen. Das zweite Fräsenmodul beinhaltet mindestens eine Antriebseinheit, vorzugsweise für eine Pumpeinrichtung, welche insbesondere zum Spülen und/oder Abpumpen von Suspension mit dem abgefrästen Bodenmaterial ausgebildet ist. Alternativ oder ergänzend kann diese oder eine weitere Antriebseinheit auch für die Fräsräder sein. An dem zweiten Fräsenmodul können bei einer kompakten Ausgestaltung auch Führungselemente zum Führen und Verstellen der Fräse in dem Frässchlitz angeordnet sein. Insbesondere können ausfahrbare Stellelemente vorgesehen sein, welche mittels Stellzylindern ausführbar sind, um so die Schlitzwandfräse gegenüber den Schlitzwänden zu verstellen.A preferred embodiment of the invention consists in that a first milling module with milling wheels and a second milling module with at least one drive unit are provided. The first cutter module can have the lower section of the trench wall cutter with the cutting wheels and the bearings of the cutting wheels on a base support. The second milling module contains at least one drive unit, preferably for a pump device, which is designed in particular for flushing and/or pumping out suspension with the ground material that has been milled off. Alternatively or in addition, this or another drive unit can also be for the cutting wheels. In a compact configuration, guide elements for guiding and adjusting the milling cutter in the milling slot can also be arranged on the second milling module. In particular, extendable adjusting elements can be provided, which can be executed by means of adjusting cylinders, in order to adjust the trench wall cutter in relation to the trench walls.
Grundsätzlich kann die Schlitzwandfräse aus einer Vielzahl weiterer Fräsenmodule aufgebaut sein, welche unterschiedliche Funktionen aufweisen können. Besonders bevorzugt ist es dabei, dass mindestens ein weiteres Fräsenmodul vorgesehen ist, welches einen Führungsrahmen aufweist. Der Führungsrahmen kann dabei rein passiv als ein gerüstähnlicher Rahmen mit Anlageelementen zum Anlegen und Führen entlang der gefrästen Schlitzwände sein. Vorzugsweise können diese plattenförmigen Elemente auch ausstellbar sein, um eine relative Lageänderung im Frässchlitz zu bewirken. Grundsätzlich können mehrere derartiger Fräsenmodule mit Führungsrahmen angeordnet werden, wobei mit einer zunehmenden Höhe des Führungsrahmens eine Führungsgenauigkeit und Führungsstabilität der Schlitzwandfräse im Frässchlitz erhöht werden. Auf diese Weise können auch bei begrenzten Bauhöhen Frässchlitze mit großen Tiefen von bis zu 100 m und mehr mit einer guten Führungsgenauigkeit erstellt werden.In principle, the trench wall cutter can be constructed from a large number of other cutter modules, which can have different functions. It is particularly preferred that at least one further milling module is provided, which has a guide frame. The guide frame can be purely passive as a scaffold-like frame with contact elements for positioning and guiding along the milled trench walls. Preferably, these plate-shaped elements can also be raised in order to bring about a relative change in position in the milled slot. In principle, a plurality of such milling modules with guide frames can be arranged, the guiding accuracy and guiding stability of the trench wall cutter in the cut trench being increased with an increasing height of the guide frame. In this way, cut trenches with great depths of up to 100 m and more can be created with good guiding accuracy, even with limited construction heights.
Am mindestens einem, vorzugsweise dem obersten Fräsenmodul ist grundsätzlich eine Trageinrichtung angeordnet, mit welcher die Schlitzwandfräse über ein Tragseil oder eine stangenförmige Trageinrichtung an der Tragkonstruktion gehalten ist.A support device is arranged on at least one, preferably the uppermost cutter module, with which the trench wall cutter is held on the support structure via a support cable or a rod-shaped support device.
Für einen effizienten Betrieb der erfindungsgemäßen Schlitzwandfräse ist es nach einer Ausführungsvariante vorteilhaft, dass die Tragkonstruktion mindestens eine Führungsschiene aufweist, entlang welcher die einzelnen Fräsenmodule quer zum Frässchlitz verschiebbar gelagert sind. Die Tragkonstruktion erlaubt also nicht nur ein Verschieben der Schlitzwandfräse vertikal in einer Vortriebsrichtung, sondern auch eine Verschiebung der einzelnen Fräsenmodule quer zu dieser Vortriebsrichtung. Dies erlaubt ein effizientes Zu- und Abführen der einzelnen Fräsenmodule und eine zweckmäßige Montage und Demontage.For efficient operation of the trench wall cutter according to the invention, it is advantageous according to one embodiment that the support structure has at least one guide rail along which the individual cutter modules are mounted so that they can be displaced transversely to the cut trench. The support structure therefore not only allows the trench wall cutter to be displaced vertically in a driving direction, but also a displacement of the individual cutting modules transversely to this driving direction. This allows efficient feeding and removal of the individual milling modules and expedient assembly and disassembly.
Grundsätzlich kann das Verschieben bei geeigneten Lagerungen von Hand erfolgen. Besonders zweckmäßig ist es nach einer Weiterbildung der Erfindung, dass eine Verschiebeeinrichtung einen Verfahrantrieb zum Verschieben der Fräsenmodule aufweist. Dies kann etwa ein Motor mit einem Ritzel sein, welches ein Verfahren etwa entlang einer Zahnstange bewirkt. Es kann auch ein Seilzugmechanismus mit Seilwinde oder ein linearer Stellzylinder oder eine sonstige geeignete Antriebseinrichtung vorgesehen sein. Der Antrieb kann vorzugsweise elektrisch oder hydraulisch betrieben sein.In principle, the shifting can be done by hand with suitable bearings. According to a development of the invention, it is particularly expedient for a displacement device to have a displacement drive for displacing the milling module. This can be a motor with a pinion, for example, which causes a movement along a rack, for example. A cable mechanism with a cable winch or a linear actuating cylinder or any other suitable drive device can also be provided. The drive can preferably be operated electrically or hydraulically.
Ein Verbinden der Fräsenmodule kann in grundsätzlich jeder geeigneten Weise erfolgen, welche ein möglichst schnelles Lösen und Verbinden ermöglicht. Dabei ist es nach einer Weiterbildung der Erfindung besonders vorteilhaft, dass die Fräsenmodule Verbindungsflächen aufweisen, welche quer und/oder längs zu einer Längs- oder Fräsrichtung der Schlitzwandfräse gerichtet sind. Hierdurch werden möglichst großflächig Verbindungsflächen geschaffen, welche eine besonders stabile Verbindung zwischen den einzelnen Fräsenmodulen erlauben.In principle, the milling modules can be connected in any suitable manner that enables the quickest possible detachment and connection. According to a development of the invention, it is particularly advantageous that the cutter modules have connecting surfaces which are directed transversely and/or longitudinally to a longitudinal or cutting direction of the trench wall cutter. As a result, connecting surfaces are created that are as large as possible, which allow a particularly stable connection between the individual milling modules.
Besonders bevorzugt ist es dabei, dass an den Verbindungsflächen lösbare Verbindungseinrichtungen angeordnet sind. Die Verbindungseinrichtungen sind dabei sowohl mechanische Verbindungseinrichtungen, um die Fräsenmodule stabil und fest miteinander zu koppeln. Darüber hinaus können die Verbindungseinrichtungen auch Einrichtungen zum Verbinden von Versorgungsschläuchen und Leitungen, etwa für elektrische Energie und und zur Datenübertragung, umfassen. Grundsätzlich können auch Schnellverbindungseinrichtungen vorgesehen sein. Diese können von Hand oder zumindest teilweise mittels entsprechend angetriebener Stellorgane, wie Stellzylinder, betrieben werden. Bevorzugt sind die Leitungen zwischen Versorgungseinheiten und Fräsenmodulen aber nicht getrennt und müssen daher beim Montieren der Fräse nicht mehr verbunden werden. Insbesondere kann jedem Fräsenmodul eine eigene Versorgungseinheit mit direkter Leitungsverbindung zugeordnet werden.It is particularly preferred that detachable connecting devices are arranged on the connecting surfaces. The connection devices are both mechanical connection devices in order to couple the milling modules to one another in a stable and firm manner. In addition, the connecting devices can also include devices for connecting supply hoses and lines, for example for electrical energy and for data transmission. In principle, quick-connect devices can also be provided. These can be operated manually or at least partially by means of appropriately driven actuators, such as actuating cylinders. The lines between supply units are preferred and tiller modules are not separated and therefore no longer have to be connected when installing the tiller. In particular, each milling module can be assigned its own supply unit with a direct line connection.
Grundsätzlich kann die Tragkonstruktion insgesamt kompakt aus Stahlträgern aufgebaut sein, wobei die Tragkonstruktion ausschließlich am Arbeitsbereich angeordnet ist. Eine besonders effiziente Betriebsweise der Schlitzwandfräsvorrichtung kann dadurch erzielt werden, dass sich die Tragkonstruktion entlang eines Arbeitsbereiches erstreckt, in welchen nebeneinanderliegende Frässchlitze eingebracht werden. So kann nach dem Erstellen eines ersten Frässchlitzes die Schlitzwandfräse unter Demontage der einzelnen Fräsenmodule entlang der Tragkonstruktion versetzt und wieder zur Schlitzwandfräse zusammengebaut werden, um einen zweiten oder weiteren Frässchlitz am Arbeitsbereich zu erstellen. Auf diese Weise kann in effizienter Weise ein durchgehender Frässchlitz erstellt werden, wie er beispielsweise für eine Schlitz- oder Dichtwand gewünscht ist.In principle, the supporting structure can be built up compactly from steel girders, with the supporting structure being arranged exclusively at the work area. A particularly efficient mode of operation of the trench wall milling device can be achieved in that the supporting structure extends along a working area in which adjacent milled slots are made. After the creation of a first cut, the trench cutter can be moved along the supporting structure by dismantling the individual cutter modules and reassembled to form a cut trench in order to create a second or further cut in the work area. In this way, a continuous milled slot can be created in an efficient manner, such as is desired for a diaphragm or cut-off wall.
Die Tragkonstruktion kann grundsätzlich einzeln aus Tragelementen aufgebaut sein. Eine vorteilhafte Ausführungsvariante der erfindungsgemäßen Schlitzwandfräsvorrichtung kann darin gesehen werden, dass die Tragkonstruktion versetzbar oder verfahrbar ist. Die Tragkonstruktion kann dabei insgesamt oder in Teilen mittels eines Hebezeuges oder mittels einer Verfahreinrichtung, etwa eines Schreitwerkes, welche auch Teil der Tragkonstruktion sein kann, bewegt werden. Mit einer solchen mobilen Tragkonstruktion können auch längere Frässchlitze hergestellt werden, welche aus einer Vielzahl von einzelnen, nebeneinanderliegenden Schlitzen hergestellt werden.In principle, the support structure can be constructed individually from support elements. An advantageous embodiment variant of the trench wall milling device according to the invention can be seen in the fact that the supporting structure can be moved or moved. The support structure can be moved in whole or in part by means of a hoist or by means of a traversing device, such as a walking mechanism, which can also be part of the support structure. Longer milled slots can also be produced with such a mobile support structure, which are produced from a large number of individual slots lying next to one another.
Eine weitere bevorzugte Ausführungsform der Erfindung besteht darin, dass an der Tragkonstruktion mindestens eine Hubeinheit zum vertikalen Bewegen der Schlitzwandfräse angeordnet ist. Die Hubeinheit ist vorzugsweise als eine Windenanordnung mit einem Tragseil oder als ein teleskopierbares Gestänge ausgebildet. Die Hubeinheit verfügt über einen entsprechenden Hubantrieb, etwa einen Drehantrieb. Dieser kann elektrisch ober hydraulisch betrieben sein. Die Hubeinheit selbst kann modulartig als ein leicht lösbares und verstellbares Modul an der Tragkonstruktion gelagert sein. Über mindestens eine entsprechende Umlenkrolle kann beispielsweise ein Tragseil von der Windenanordnung der Hubeinheit entlang eines oberen Bereiches der Tragkonstruktion zu der Schlitzwandfräse geführt und mit dieser lösbar verbunden sein. Die mindestens eine Umlenkrolle kann an einem Rollenschlitten drehbar gelagert sein, welcher an der Tragkonstruktion verschiebbar gelagert ist.A further preferred embodiment of the invention consists in that at least one lifting unit for vertically moving the trench wall cutter is arranged on the supporting structure. The lifting unit is preferably designed as a winch arrangement with a carrying cable or as a telescoping linkage. The lifting unit has a corresponding lifting drive, such as a rotary drive. This can be operated electrically or hydraulically. The lifting unit itself can be mounted in modular form as an easily detachable and adjustable module on the supporting structure. At least one corresponding deflection roller can, for example a carrying cable from the winch arrangement of the lifting unit along an upper area of the supporting structure to the trench wall cutter and be releasably connected thereto. The at least one deflection roller can be rotatably mounted on a roller carriage, which is movably mounted on the supporting structure.
Weiterhin ist es nach einer Weiterentwicklung der Erfindung bevorzugt, dass an der Tragkonstruktion mindestens eine Versorgungseinheit mit mindestens einer Schlauch- und/oder Leitungstrommel angeordnet ist. Die eine oder die mehreren Versorgungseinheiten können dabei ebenfalls als leicht lösbare und verschiebbare Module an der Tragkonstruktion gelagert sein. Die Schläuche können zum Zu- und Abführen von Suspension oder von Hydraulikfluid zu der Schlitzwandfräse ausgebildet sein. Die Leitungen auf den Leitungstrommeln können zur Übertragung von elektrischer Energie, von Hydraulikfluid oder als Datenleitungen ausgebildet sein. Die Hubeinheit und die Versorgungseinheit können auch gemeinsam an einem Modul oder einer Einheit ausgebildet sein.Furthermore, according to a further development of the invention, it is preferred that at least one supply unit with at least one hose and/or cable reel is arranged on the supporting structure. The one or more supply units can also be mounted on the supporting structure as easily detachable and displaceable modules. The hoses can be designed for supplying and removing suspension or hydraulic fluid to the trench wall cutter. The lines on the cable drums can be designed to transmit electrical energy, hydraulic fluid or as data lines. The lifting unit and the supply unit can also be formed together on one module or one unit.
Die Tragkonstruktion kann grundsätzlich beliebig ausgeführt sein. Bevorzugt ist es, dass die Tragkonstruktion Vertikalstützen aufweist, auf welchen die mindestens eine Führungsschiene beabstandet zum Boden gehalten ist. Auf diese Weise können entlang einer oder mehrerer paralleler Führungsschienen die Fräsenmodule zuverlässig entlang der Tragkonstruktion verschoben und an der Arbeitsstelle montiert werden. Die einzelnen Fräsenmodule können dabei Haltepunkte zum Anbringen der Hubeinheit, insbesondere eines Tragseiles aufweisen, so dass die einzelnen Fräsenmodule so in einen Leitschlitz oder aus dem gefrästen Schlitz gehoben und anschließend entlang der Tragkonstruktion verschoben werden können.In principle, the support structure can be of any design. It is preferred that the support structure has vertical supports on which the at least one guide rail is held at a distance from the floor. In this way, the milling modules can be reliably slid along the support structure along one or more parallel guide rails and assembled at the work site. The individual milling modules can have attachment points for attaching the lifting unit, in particular a support cable, so that the individual milling modules can be lifted into a guide slot or out of the milled slot and then moved along the supporting structure.
Die Erfindung betrifft weiterhin eine Schlitzwandfräse, welche dadurch gekennzeichnet ist, dass diese aus zumindest zwei Fräsenmodulen aufgebaut ist, welche eine im Wesentlichen gleiche Höhe aufweisen. Diese Schlitzwandfräse kann vorzugsweise bei der zuvor beschriebenen Schlitzwandfräsvorrichtung eingesetzt werden. Die Schlitzwandfräse kann jedoch auch unabhängig hiervon, insbesondere von der zuvor beschriebenen Tragkonstruktion zum Einsatz kommen und beispielsweise auch an herkömmlichen Trägergeräten eingesetzt werden. Die Ausgestaltung der einzelnen Fräsenmodule mit gleicher Höhe und bei einem grundsätzlich gleichen Querschnitt erlaubt eine gute und einheitliche Transportierbarkeit der einzelnen Module.The invention also relates to a trench wall cutter, which is characterized in that it is made up of at least two cutter modules which have essentially the same height. This trench wall cutter can preferably be used with the trench wall cutter device described above. However, the trench wall cutter can also be used independently of this, in particular of the support structure described above and can also be used, for example, on conventional carrier devices. The design of the individual milling modules with the same height and with a fundamental the same cross-section allows good and uniform transportability of the individual modules.
Besonders bevorzugt ist es dabei, dass die Höhe der Fräsenmodule nicht höher als der zweifache Durchmesser der Fräsräder ist. Bei einer Schlitzwandfräse betragen die Durchmesser der Fräsräder typischerweise zwischen 0,5 m bis 2,5 m. Entsprechend erstreckt sich eine mögliche Höhe der Fräsenmodule zwischen 0,5 m und 5 m. Ein Unterschied in den Höhen der einzelnen Fräsenmodule beträgt dabei nicht mehr als 20%, insbesondere nicht mehr als 10%.It is particularly preferred that the height of the milling modules is not higher than twice the diameter of the milling wheels. In a trench wall cutter, the diameter of the cutter wheels is typically between 0.5 m and 2.5 m. Accordingly, the possible height of the cutter modules is between 0.5 m and 5 m. The difference in the heights of the individual cutter modules is no more than 20%, especially not more than 10%.
Eine besonders gute Transportierbarkeit wird nach einer Weiterbildung der Erfindung dadurch erzielt, dass die Höhe der Fräsenmodule nicht höher als 3 m ist. Damit können die Fräsenmodule zu Transportzwecken in einem Standard- oder zumindest einem sog. High-Cube-Container aufgenommen werden, welcher ohne weiteres für einen Straßentransport geeignet ist. Im Übrigen erlaubt die kompakte Höhe der erfindungsgemäßen Fräsenmodule einen Einsatz in Tunneln, Kellern oder anderen beengten Räumlichkeiten. Auch können ein oder mehrere Standard- oder High-Cube-Container als eine Umhüllung oder ein Gehäuse zum Einsatz der Schlitzwandfräse vorgesehen werden.According to a development of the invention, particularly good transportability is achieved in that the height of the milling module is not higher than 3 m. The milling modules can thus be accommodated in a standard container or at least in a so-called high-cube container for transport purposes, which is readily suitable for road transport. Furthermore, the compact height of the milling module according to the invention allows it to be used in tunnels, cellars or other cramped spaces. Also, one or more standard or high-cube containers can be provided as an enclosure or housing for use with the trench cutter.
Gemäß einem weiteren Aspekt der Erfindung ist eine Schlitzwandfräse vorgesehen, welche dadurch gekennzeichnet ist, dass diese aus zumindest zwei Fräsenmodulen aufgebaut ist, welche mechanisch miteinander lösbar verbunden sind, wobei ein erstes Fräsenmodul mit den Fräsrädern unabhängig von dem zweiten Fräsenmodul direkt mit einer ersten Versorgungseinheit zur Energieversorgung verbunden ist. Auch diese erfindungsgemäße Schlitzwandfräse kann in Kombination mit der zuvor beschriebenen Schlitzwandfräsvorrichtung oder als eine Weiterbildung der zuvor genannten Schlitzwandfräse mit der im Wesentlichen gleichen Höhe der Fräsenmodule vorgesehen sein. Vorzugsweise ist diese erfindungsgemäße Schlitzwandfräse jedoch unabhängig hiervon. Ein wesentlicher Vorteil der erfindungsgemäßen Schlitzwandfräse besteht darin, dass die mindestens zwei Fräsenmodule lediglich mechanisch zusammengesetzt werden müssen, ohne dass eine Leitungsverbindung zwischen den mindestens zwei Fräsenmodulen geschlossen werden muss. Vielmehr ist das erste Fräsenmodul mit den Fräsrädern direkt mit einer ersten Versorgungseinheit über eine Versorgungsleitung verbunden, welche direkt von der ersten Versorgungseinheit zu dem ersten Fräsenmodul führt. Grundsätzlich kann dabei das mindestens eine weitere Fräsenmodul frei von einer Energieversorgung sein. In einem solchen Fall dient das weitere Fräsenmodul etwa als ein passiver Führungsrahmen.According to a further aspect of the invention, a trench wall cutter is provided which is characterized in that it is made up of at least two cutter modules which are mechanically detachably connected to one another, with a first cutter module with the cutter wheels being connected directly to a first supply unit independently of the second cutter module power supply is connected. This trench wall cutter according to the invention can also be provided in combination with the previously described trench wall milling device or as a further development of the aforementioned trench wall cutter with essentially the same height of the cutter modules. However, this trench cutter according to the invention is preferably independent of this. An essential advantage of the trench wall cutter according to the invention is that the at least two cutter modules only have to be assembled mechanically, without a line connection between the at least two cutter modules having to be closed. Rather, the first milling module with the milling wheels is directly connected to a first supply unit via a supply line, which directly from the first supply unit leads to the first milling module. In principle, the at least one further milling module can be free of an energy supply. In such a case, the further milling module serves as a passive guide frame.
Eine bevorzugte Weiterbildung der erfindungsgemäßen Schlitzwandfräse besteht darin, dass auch das mindestens eine zweite Fräsenmodul mit einer eigenständigen Versorgungseinheit verbunden ist. Diese kann etwa zum Betätigen von Stellelementen zur Steuerung der Schlitzwandfräse im Schlitz vorgesehen sein. Eine jeweilige Versorgungsleitung von einer ersten Versorgungseinheit zu einem ersten Fräsenmodul und einer zweiten Versorgungseinheit zu einem zweiten Fräsenmodul kann dabei an den gegenüberliegenden Schmalseiten der Schlitzwandfräse angeordnet sein.A preferred development of the trench wall cutter according to the invention is that the at least one second cutter module is also connected to an independent supply unit. This can be provided, for example, for actuating control elements for controlling the trench wall cutter in the trench. A respective supply line from a first supply unit to a first cutter module and from a second supply unit to a second cutter module can be arranged on the opposite narrow sides of the trench wall cutter.
Weiter ist nach der Erfindung ein Verfahren zum Fräsen eines Frässchlitzes im Boden mit der vorbeschriebenen Schlitzwandfräsvorrichtung oder einer der Schlitzwandfräsen vorgesehen, insbesondere bei welchen eine Tragkonstruktion mit einer Führungseinrichtung angeordnet wird, und eine Schlitzwandfräse an der Tragkonstruktion angeordnet und in einer vertikalen Richtung in den Boden abgesenkt wird, wobei in einem Arbeitsbereich Bodenmaterial abgefräst und so der Frässchlitz gebildet wird, wobei die Schlitzwandfräse aus mindestens zwei Fräsenmodulen aufgebaut wird, welche getrennt voneinander mittels der Führungseinrichtung zu dem Arbeitsbereich zugeführt und an dem Arbeitsbereich zum Bilden der Schlitzwandfräse miteinander verbunden werden. Mit diesem Verfahren können auch Bodenschätze abgebaut werden, die sich unterhalb eines hierfür erstellten sogenannten Mikrotunnels befinden.Furthermore, according to the invention, a method for cutting a cut trench in the ground with the above-described trench wall cutting device or one of the trench wall cutters is provided, in particular in which a supporting structure is arranged with a guide device, and a trench wall cutter is arranged on the supporting structure and lowered into the ground in a vertical direction ground material is milled off in a working area and the cut trench is thus formed, with the trench wall cutter being constructed from at least two cutter modules which are fed separately from one another by means of the guide device to the working area and are connected to one another at the working area to form the trench wall cutter. This method can also be used to mine mineral resources that are located below a so-called micro tunnel created for this purpose.
Mit dem erfindungsgemäßen Verfahren können die zuvor beschriebenen Vorteile erzielt werden. Grundsätzlich kann die Schlitzwandfräse dann in umgekehrter Weise wieder aus dem erstellten Frässchlitz gezogen und demontiert werden.The advantages described above can be achieved with the method according to the invention. In principle, the trench wall cutter can then be pulled out of the prepared trench in the opposite way and dismantled.
Eine besonders vorteilhafte Verfahrensvariante der Erfindung kann darin gesehen werden, dass mindestens zwei nebeneinanderliegende Frässchlitze erstellt werden, wobei nach dem Erstellen eines ersten Frässchlitzes die Schlitzwandfräse aus dem ersten Frässchlitz unter Trennung der Fräsenmodule rückgezogen wird, und dass zum Bilden eines weiteren Frässchlitzes die Fräsenmodule entlang der Führungseinrichtung verfahren und wieder zu der Schlitzwandfräse verbunden werden, die anschließend unter Abfräsen von Bodenmaterial in den Boden abgesenkt wird. Mit diesem Verfahren können auch bei beengten Raumverhältnissen mehrere Frässchlitze bei guter Fräsenführung und bei relativ großen Frästiefen effizient hergestellt werden. In Sinne der Erfindung müssen die nebeneinanderliegenden Frässchlitze nicht direkt angrenzende nebeneinander liegen. Es kann sich beispielsweise auch um Primär- oder Sekundärfrässchlitze beim Herstellen einer Schlitzwand im Pilgerschnittverfahren handeln. Die einzelnen Verfahrensschritte können dabei beliebig wiederholt werden, wobei gegebenenfalls die Tragkonstruktion mit der Führungseinrichtung mit dem Arbeitsfortschritt entlang des Arbeitsbereiches zu verstellen oder zu verfahren ist.A particularly advantageous method variant of the invention can be seen in the fact that at least two adjacent milled trenches are created, after the creation of a first milled trench, the trench wall cutter is withdrawn from the first milled trench, separating the cutter modules, and that to form a further cut trench, the cutter modules are moved along the guide device and reconnected to the trench wall cutter, which is then lowered into the ground while soil material is cut away. With this method, several milled slots can be efficiently produced with good milling guidance and with relatively large milling depths, even in confined spaces. For the purposes of the invention, the adjacent milled slots do not have to be directly adjacent to one another. For example, it can also be a matter of primary or secondary milling slots when producing a diaphragm wall using the pilger cutting method. The individual process steps can be repeated as desired, with the support structure having to be adjusted or moved along the work area with the guide device as the work progresses.
Gemäß einer Weiterbildung der Erfindung ist es vorgesehen, dass zum Bilden einer Schlitzwand im Boden der mindestens eine Frässchlitz mit einer abbindbaren Suspension verfüllt wird, welche zu der Schlitzwand aushärtet. Das Verfüllen mit einer abbindbaren Suspension kann bereits beim Fräsen in einem sogenannten Einphasenverfahren erfolgen oder durch einen abschließenden Austausch einer Stützsuspension durch eine abbindbare Suspension in einem sogenannten Zweiphasenverfahren.According to a development of the invention, it is provided that, in order to form a diaphragm wall in the ground, the at least one cut trench is filled with a settable suspension, which hardens to form the diaphragm wall. The filling with a settable suspension can already take place during the milling in a so-called one-phase process or by a final replacement of a supporting suspension with a settable suspension in a so-called two-phase process.
Zum Herstellen der abbindbaren Suspension kann zumindest ein Teil des abgefrästen Bodenmaterials verwendet werden, welches unmittelbar im Schlitz oder in einer Aufbereitungsanlage außerhalb des Frässchlitzes mit einer abbindbaren Flüssigkeit zum Bilden der abbindbaren Suspension vermischt wird.At least part of the milled soil material can be used to produce the settable suspension, which is mixed with a settable liquid directly in the trench or in a processing plant outside of the milled trench to form the settable suspension.
Die Erfindung wird nachfolgend anhand von bevorzugten Ausführungsbeispielen weiter beschrieben, welche schematisch in den Zeichnungen dargestellt sind. In den Zeichnungen zeigen:
- Fig. 1
- eine perspektivische Ansicht einer erfindungsgemäßen Schlitzwandfräsvorrichtung;
- Fig. 2
- eine Vorderansicht der Schlitzwandfräsvorrichtung von
Fig. 1 ; - Fig. 3
- eine Seitenansicht der Schlitzwandfräsvorrichtung von
Fig. 2 ; - Fig. 4
- eine Draufsicht auf die Schlitzwandfräsvorrichtung nach den
Figuren 1 ;bis 3 - Fig. 5
- eine perspektivische Ansicht einer Tragkonstruktion der erfindungsgemäßen Schlitzwandfräsvorrichtung nach
Fig. 1 ; - Fig. 6
- eine perspektivische vergrößerte Darstellung eines ersten Fräsenmoduls der Schlitzwandfräsvorrichtung von
Fig. 1 ; - Fig. 7
- eine perspektivische vergrößerte Ansicht eines zweiten Fräsenmoduls der Schlitzwandfräsvorrichtung von
Fig. 1 ; - Fig. 8
- eine perspektivische Ansicht eines Verschiebeschlittens für eine erfindungsgemäße Schlitzwandfräsvorrichtung;
- Fig. 9
- eine perspektivische Ansicht einer Versorgungseinheit mit Schlauchtrommeln für eine erfindungsgemäße Schlitzwandfräsvorrichtung;
- Fig. 10
- eine perspektivische Ansicht einer anderen Versorgungseinheit mit Leitungstrommel für eine erfindungsgemäße Schlitzwandfräsvorrichtung;
- Fig. 11
- eine Vorderansicht einer im Einsatz befindlichen erfindungsgemäßen Schiitzwandfräsvorrichtung;
- Fig. 12
- eine schematische Seitenquerschnittsansicht der Schlitzwandfräsvorrichtung von
Fig. 11 ; - Fig. 13
- eine Vorderansicht der erfindungsgemäßen Schlitzwandfräsvorrichtung von
Fig. 11 mit zusammengesetzter Schlitzwandfräse; - Fig. 14
- eine Seitenansicht der Schlitzwandfräsvorrichtung von
Fig. 13 ; - Fig. 15
- eine Vorderansicht der Schlitzwandfräsvorrichtung der
Figuren 11 bis 14 bei Beginn des Fräsverfahrens; und - Fig. 16
- eine Seitenansicht der Schlitzwandfräsvorrichtung von
Fig. 15 .
- 1
- a perspective view of a trench wall milling device according to the invention;
- 2
- a front view of the trench wall milling device of FIG
1 ; - 3
- a side view of the trench wall milling device of FIG
2 ; - 4
- a top view of the trench wall milling device according to FIG
Figures 1 to 3 ; - figure 5
- a perspective view of a support structure of the trench wall milling device according to the invention
1 ; - 6
- a perspective enlarged view of a first milling module of the trench wall milling device from FIG
1 ; - 7
- a perspective enlarged view of a second milling module of the trench wall milling device of
1 ; - 8
- a perspective view of a displacement carriage for a trench wall milling device according to the invention;
- 9
- a perspective view of a supply unit with hose reels for a trench wall milling device according to the invention;
- 10
- a perspective view of another supply unit with cable reel for a trench wall milling device according to the invention;
- 11
- a front view of a Schitzwandfräsvorrichtung in use according to the invention;
- 12
- FIG. 12 is a schematic side cross-sectional view of the trench wall milling device of FIG
11 ; - 13
- a front view of the trench wall milling device according to the
invention 11 with compound trench cutter; - 14
- a side view of the trench wall milling device of FIG
13 ; - 15
- a front view of the trench wall milling device
Figures 11 to 14 at the start of the milling process; and - 16
- a side view of the trench wall milling device of FIG
15 .
In den
Die Schlitzwandfräsvorrichtung 10 weist eine gerüstartige Tragkonstruktion 20 auf, welche auch näher in
Wie in den
Seitlich neben dem ersten Fräsenmodul 40 ist ein zweites Fräsenmodul 50 mit einem Führungsrahmen 54 ebenfalls entlang der oberen Führungsschienen 25 der Verschiebeeinrichtung 26 verschiebbar gelagert. Das zweite Fräsenmodul 50 mit der darin gelagerten Antriebseinheit 52 ist an zwei Seilen 64 aufgehängt. Dabei sind die Seile 64 von einer Winde 62 einer Hubeinheit 60 entlang des oberen Deckenbereiches 23 bis zu einem Verschiebschlitten 27 geführt, von welchem die Seile 64 über Umlenkrollen zu dem zweiten Fräsenmodul 50 geführt und daran lösbar befestigt sind. Neben einer Hubfunktion zum Heben und Absenken einer Schlitzwandfräse kann das Seil 64 auch Teil der Verschiebeinrichtung 26 zum Längsverschieben zumindest des zweiten Fräsenmoduls 50 entlang der oberen Führungsschienen 25 sein.A
Bei der dargestellten Schlitzwandfräsvorrichtung 10 gemäß den
Auf der rechten Seite ist eine zweite Versorgungseinheit 70 mit einer Schlauchtrommel 72 und einer Leitungstrommel 73 dargestellt, welche in einem zweiten Tragschlitten 76 drehbar gelagert sind. Der zweite Tragschlitten 76, an welchem auch zwei Windentrommeln der Winde 62 drehbar gelagert sind, kann entlang der Führungsschienen 25 am oberen Deckenbereich 23 längs verschoben und festgestellt werden. Die zweite Versorgungseinheit 70 dient zur direkten Versorgung des zweiten Fräsenmoduls 50.A
In den
Das erste Fräsenmodul 40 ist in
Zwischen den beiden Paaren von Fräsrädern 42, welche gegensinnig zur Mitte drehen, ist ein Absaugstutzen 45 zum Absaugen des abgefrästen Bodenmaterials mit umgebender Stütz- oder Fräsflüssigkeit vorgesehen. An dem Grundrahmen 44 ist für jedes Paar von Fräsrädern 42 ein Fräsantrieb 46 angebracht. Grundsätzlich könnte der Antrieb auch in die Fräsräder 42 integriert sein. Weiterhin sind vertikale und horizontale Flächen an dem Grundrahmen 44 als erste Verbindungsfläche 48 vorgesehen, wobei Durchgangsbohrungen 49 für Bolzenverbindungen vorgesehen sein können. Aufnahmen 41 dienen der Verbindung mit der ersten Versorgungseinheit 80, wie im Zusammenhang mit der
Gemäß
Am Führungsrahmen 54 sind zweite Verbindungsflächen 58 vorgesehen, welche eine positionsgenaue Verbindung mit den ersten Verbindungsflächen 48 am ersten Fräsenmodul 40 ermöglichen. Innerhalb des Führungsrahmens 54 ist eine Antriebseinheit 52 angebracht, welche als eine Pumpeinrichtung ausgebildet ist. An einer Oberseite des Führungsrahmens 54 ist in einem Mittenbereich eine Halteeinrichtung 55 zum Anbringen eines Tragseiles vorgesehen.Second connecting
Das erste Fräsenmodul 40 und das zweite Fräsenmodul 50 können mechanisch miteinander verbunden werden.The
Der zuvor erwähnte Verschiebeschlitten 27 ist in
Die Führungsrollen 35 sind jeweils paarweise gegenüberliegend angeordnet, wobei zwischen den beiden Paaren ein Zwischenraum gebildet ist, in welchem zwei seitlich gegenüberliegende Umlenkrollen 36 für das Seil 64 zum Halten des zweiten Fräsenmoduls 50 und damit der Schlitzwandfräse insgesamt angeordnet sind. Mittels der Umlenkrollen 36 werden die etwa horizontal geführten Seile 64 von der Winde 62 vertikal nach unten umgelenkt. Für eine Umlenkung der Schlauchleitung 74 und der Leitungen 75 von der zweiten Versorgungseinheit 70 sind bogenförmige, etwa viertelkreisförmig ausgebildete Schlauchführungen 37 an dem Schlittenrahmen 34 angeordnet. Durch diese Schlauchführungen 37 werden die horizontal zugeführten Schlauchleitung 74 und die Leitungen 75 in eine vertikale Richtung zu der Schlitzwandfräse umgelenkt.The
In
In ähnlicher Weise ist die erste Versorgungseinheit 80 gemäß
An einer Stirnseite des ersten Tragschlittens 86 ist eine viertelkreisförmige, bogenartige Umlenkführung 88 angeordnet, mit welcher Leitungen von der Leitungstrommel 82 aus der Horizontalen in eine Vertikale in Richtung der Schlitzwandfräse umgelenkt werden können.A quarter-circle-shaped, arc-like deflection guide 88 is arranged on one end face of the
Verriegelungseinrichtungen 89 dienen der Verbindung mit dem ersten Fräsenmodul 40, indem diese in die Aufnahmen 41 (siehe
Im Zusammenhang mit den
In
Die in die Tunnelröhre 5 eingesetzte Schlitzwandfräsvorrichtung entspricht der zuvor beschriebenen Schlitzwandfräsvorrichtung 10 und weist als wesentliche Komponenten eine gerüstartige Tragkonstruktion 20 auf, in welcher ein erstes Fräsenmodul 40, ein zweites Fräsenmodul 50 sowie eine erste Versorgungseinheit 80 und eine zweite Versorgungseinheit 70 linear verschiebbar geführt und gehalten sind. Die Tragkonstruktion 20 ist an die Tunnelröhre 5 angepasst, wobei sich eine Bodenauflage 21 am Boden der Tunnelröhre 5 und ein Deckenbereich 23 der Tragkonstruktion 20 an einer Decke der Tunnelröhre 5 abstützt. Es ist auch möglich, dass die Schlitzwandfräsvorrichtung 10 sich nicht an der Decke, sondern nur am Boden abstützt. Die Tunnelröhre 5 kann einen Durchmesser von etwa 2 m bis 6 m aufweisen. Bei einem entsprechend großen Tunnelquerschnitt ist auch eine seitliche Abstützung der Schlitzwandfräsvorrichtung 10 denkbar, ohne dass dies den seitlichen Freiraum, der z. B. als Transportweg benutzt werden kann, einschränkt.The diaphragm wall milling device used in the tunnel tube 5 corresponds to the diaphragm
In einem ersten Verfahrensschritt gemäß
Nachdem die mechanischen Verbindungen zwischen den beiden Fräsenmodulen 40, 50 hergestellt sind, kann eine Verrieglung zwischen dem ersten Fräsenmodul 40 und der ersten Versorgungseinheit 80 über die Verriegelungseinrichtung 89 gelöst werden. Anschließend kann die Schlitzwandfräse 30 unter Drehbewegung der Fräsräder 42 über das Tragseil 64 in den Boden abgelassen und Bodenmaterial zum Bilden des Frässchlitzes abgetragen werden. An der Schlitzwandfräse 30 sind grundsätzlich auch die Schlauchleitung 74 und die Leitungen 75 von der zweiten Versorgungseinheit 70 anschliessbar, während die Leitungen 84 von der ersten Versorgungseinheit 80 fest angeschlossen sind. Allerdings ist es bevorzugt, dass die Leitungen zwischen der ersten Versorgungseinheit 80 und dem ersten Fräsenmodul 30 sowie die Leitungen zwischen der zweiten Versorgungseinheit 70 und dem zweiten Fräsenmodul jeweils fest angeschlossen sind und beim Aufbau nicht mehr verbunden werden müssen. Das abgefräste Bodenmaterial kann über den Absaugstutzen 45 mittels der als Pumpeinrichtung ausgebildeten Antriebseinheit 52 abgepumpt und mittels der Schlauchleitung 74 nach außerhalb des Frässchlitzes in die Tunnelröhre 5 und von dieser nach außerhalb der Tunnelröhre 5 abgefördert werden.After the mechanical connections between the two
Nach Erreichen einer gewünschten Endtiefe kann die Schlitzwandfräse 30 wieder nach oben rückgezogen und in umgekehrter Weise demontiert werden. Nach einem Versetzen der Schlitzwandfräsvorrichtung 10 mit der Tragkonstruktion 20 insgesamt oder durch lineares Verschieben der Fräsenmodule 40, 50 entlang der Tragkonstruktion 20 zu einem neuen Arbeitsbereich kann dann der Montageschritt zum erneuten Montieren der Schlitzwandfräse 30 und zum erneuten Durchführen eines Fräsens eines Schlitzes wiederholt werden.After reaching a desired final depth, the
Die Tragkonstruktion 20 kann nicht nur als ein Teil ausgebildet sein, wie in dem vorausgegangenen Ausführungsbeispiel dargestellt, sondern auch mehrteilig aus mehreren Komponenten, welche voneinander beabstandet sind oder über Schwenkgelenke miteinander verbunden sind. Zur Steuerung der Schlitzwandfräse 30 kann ein Steuerstand vorgesehen sein, welcher vorzugsweise an der Tragkonstruktion 20 oder im Bereich der Schlitzwandfräse 30 selbst vorgesehen ist. Grundsätzlich kann die Schlitzwandfräse 30 auch ohne eine Absaugeinrichtung unmittelbar an der Schlitzwandfräse 30 ausgebildet sein. Eine entsprechende Absaugeinrichtung kann dabei im Bereich der Tragkonstruktion 20 angeordnet sein. Alternativ kann eine Absaugvorrichtung, insbesondere eine Pumpe, am ersten Fräsenmodul 40 mit den Fräsrädern 42 oder an dem zweiten Fräsenmodul 50 unmittelbar oberhalb der Fräsräder 42 angeordnet sein.The
Claims (15)
- Trench wall cutting device, comprising- a trench cutter (30) which is constructed from at least two cutter modules (40, 50), and- a supporting structure (20) for suspending and moving the trench cutter (30) in a vertical direction in order to form a cut trench in the ground,
characterized in that- the supporting structure (20) has a guide apparatus (24), which is configured to supply the separated cutter modules (40, 50) to a working region at which the cut trench is to be created, wherein the cutter modules (40, 50) can be assembled at the working region to the trench cutter (30). - Trench wall cutting device according to claim 1,
characterised in that
a first cutter module (40) having cutting wheels (42), and a second cutter module (50) having at least one drive unit (52) and/or a guide frame (54) are provided. - Trench wall cutting device according to claim 2,
characterised in that
a pump that can be driven by the drive unit (52) is provided in the second cutter module (50). - Trench wall cutting device according to any of claims 1 to 3,
characterised in that
at least one further cutter module is provided, which comprises a guide frame (54). - Trench wall cutting device according to any of claims 1 to 4,
characterised in that
the supporting structure (20) comprises at least one guide rail (25), along which the individual cutter modules (40, 50) are mounted so as to be shiftable transversely to the cut trench. - Trench wall cutting device according to claim 5,
characterised in that
a shifting apparatus (26) having a traversing drive for shifting the cutter modules (40, 50) is provided. - Trench wall cutting device according to any of claims 1 to 6,
characterised in that
the cutter modules (40, 50) have connection surfaces (48, 58) on which releasable connection apparatuses are arranged. - Trench wall cutting device according to any of claims 1 to 7,
characterised in that
the supporting structure (20) extends along a working region in which adjacent cut trenches are made. - Trench wall cutting device according to any of claims 1 to 8,
characterised in that
at least one lifting unit (60) for vertically moving the trench cutter (30) is arranged on the supporting structure (20). - Trench wall cutting device according to any of claims 1 to 9,
characterised in that
at least one supply unit (70, 80) having at least one hose reel and/or cable reel (72, 73, 82) is arranged on the supporting structure (20). - Trench wall cutting device (10) according to any of claims 1 to 10,
characterised in that
the trench cutter (30) is constructed from at least two cutter modules (40, 50), which have substantially the same height. - Trench wall cutting device (10) according to any of claims 1 to 11,
characterised in that
the trench cutter (30) is constructed from at least two cutter modules (40, 50), which are releasably mechanically interconnected, wherein a first cutter module (40), having the cutting wheels (42), is directly connected to a first supply unit (80) for a power supply, independently of the second cutter module (50). - Method for cutting a cut trench in the ground using a trench wall cutting device (10), in particular according to any of claims 1 to 12, in which- a supporting structure (20) having a guide apparatus (24) is arranged, and- a trench cutter (30) is arranged on the supporting structure (20) and is lowered into the ground in a vertical direction, wherein ground material is cut away in a working region and thus forming the cut trench,
characterized in that- the trench cutter (30) is constructed from at least two cutter modules (40, 50) which are supplied to the working region in a manner separated from one another by means of the guide apparatus (24) and are connected to one another at the working region to form the trench cutter (30). - Method according to claim 13,
characterised in thatat least two adjacent cut trenches are created, wherein, after a first cut trench has been created, the trench cutter (30) is retracted out of the first cut trench while separating the cutter modules (40, 50), andin that, to form a further cut trench, the cutter modules (40, 50) are moved along the guide apparatus (24) and reconnected to the trench cutter (30), which is then lowered into the ground while cutting away ground material. - Method according to either claim 13 or 14,
characterised in that
to form a trench wall in the ground, the at least one cut trench is filled with a settable suspension, which hardens to the trench wall.
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES19167353T ES2911553T3 (en) | 2019-04-04 | 2019-04-04 | Diaphragm wall milling device and method for milling a milling trench in the ground |
EP19167353.2A EP3719207B1 (en) | 2019-04-04 | 2019-04-04 | Underground wall milling device and method for creating a milled slit in the ground |
KR1020217031487A KR102621289B1 (en) | 2019-04-04 | 2020-02-13 | Trench wall cutting device and how to cut a cutting trench in the ground |
US17/600,921 US20220162828A1 (en) | 2019-04-04 | 2020-02-13 | Trench wall cutting device and method for cutting a cut trench in the ground |
SG11202109942U SG11202109942UA (en) | 2019-04-04 | 2020-02-13 | Trench wall cutting device and method for cutting a cut trench in the ground |
JP2021559139A JP7316374B2 (en) | 2019-04-04 | 2020-02-13 | Trench wall cutting device and underground cut trench cutting method |
PCT/EP2020/053808 WO2020200561A1 (en) | 2019-04-04 | 2020-02-13 | Slurry wall milling device and method for producing a milled slot in the ground |
CN202080026654.5A CN113614312B (en) | 2019-04-04 | 2020-02-13 | Groove wall milling device and method for milling milled grooves in the ground |
BR112021018951A BR112021018951A2 (en) | 2019-04-04 | 2020-02-13 | Ditch wall cutting device and method for cutting a ditch in the ground |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP19167353.2A EP3719207B1 (en) | 2019-04-04 | 2019-04-04 | Underground wall milling device and method for creating a milled slit in the ground |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3719207A1 EP3719207A1 (en) | 2020-10-07 |
EP3719207B1 true EP3719207B1 (en) | 2022-03-23 |
Family
ID=66092215
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19167353.2A Active EP3719207B1 (en) | 2019-04-04 | 2019-04-04 | Underground wall milling device and method for creating a milled slit in the ground |
Country Status (9)
Country | Link |
---|---|
US (1) | US20220162828A1 (en) |
EP (1) | EP3719207B1 (en) |
JP (1) | JP7316374B2 (en) |
KR (1) | KR102621289B1 (en) |
CN (1) | CN113614312B (en) |
BR (1) | BR112021018951A2 (en) |
ES (1) | ES2911553T3 (en) |
SG (1) | SG11202109942UA (en) |
WO (1) | WO2020200561A1 (en) |
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Publication number | Priority date | Publication date | Assignee | Title |
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EP4053342B1 (en) | 2021-03-01 | 2023-10-11 | BAUER Maschinen GmbH | Underground wall milling device and method for creating a milled slit in the ground |
EP4101989A1 (en) * | 2021-06-07 | 2022-12-14 | BAUER Maschinen GmbH | Transportable winch device for a construction machine |
CN114032883B (en) * | 2021-11-27 | 2023-03-31 | 红安县水电建筑安装公司 | Double-wheel milling anti-seepage wall structure and construction process thereof |
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JPS53144101A (en) * | 1977-05-21 | 1978-12-15 | Nakae Sangiyou Yuugen | Excavator used to make continuous wall in ground |
FR2573475B1 (en) * | 1984-11-16 | 1987-10-16 | Soletanche | NEW PROCESS FOR THE EXPLOITATION OF ORE DEPOSITS |
JPS63268813A (en) * | 1987-04-24 | 1988-11-07 | Taisei Corp | Method and apparatus for regulating connecting length of excavator supporting rod in continuous underground wall construction |
DE4119210C1 (en) * | 1991-06-11 | 1993-01-21 | Bauer Spezialtiefbau Gmbh, 8898 Schrobenhausen, De | |
JP2678335B2 (en) * | 1993-06-08 | 1997-11-17 | 大成建設株式会社 | Underground continuous wall drilling equipment |
FR2856088B1 (en) * | 2003-06-11 | 2005-09-09 | Cie Du Sol | MILLING TOOL FOR MAKING TRENCHES, PERMITTING RAPID CHANGE OF THE CUTTER HEAD |
JP4340965B2 (en) | 2003-12-01 | 2009-10-07 | 清水建設株式会社 | Low head pile driver |
DE102004013790A1 (en) | 2004-03-20 | 2005-10-06 | Josef Möbius Bau-Aktiengesellschaft | Rod shaped unit e.g. pipe, driving and moving out method for use in construction vehicle, involves providing two exciter cells whose torques are adjusted such that torques are brought in-phase on rod shaped unit |
ES2293142T3 (en) | 2004-09-01 | 2008-03-16 | Bauer Maschinen Gmbh | WALL SCREEN IN THE FLOOR AND METHOD FOR YOUR PRODUCTION. |
JP2009074334A (en) | 2007-09-25 | 2009-04-09 | Hazama Corp | Continuous underground wall construction equipment |
ES2550352T3 (en) * | 2012-11-27 | 2015-11-06 | Lasse Jaakkola | Wheel trencher for laying cables on the ground |
CN203782773U (en) * | 2013-12-30 | 2014-08-20 | 徐工集团工程机械股份有限公司 | Milling wheel mud scraping device and double-wheel trench milling machine thereof |
CN105507356A (en) * | 2016-02-01 | 2016-04-20 | 徐州徐工基础工程机械有限公司 | Gear swinging mechanism for milling wheel of double-wheel slot milling machine |
EP3208384B1 (en) | 2016-02-17 | 2018-05-23 | BAUER Maschinen GmbH | Groove wall device and method for making grooves in the ground |
EP3296468B1 (en) | 2016-09-15 | 2019-11-06 | BAUER Maschinen GmbH | Method and trench cutter for creating a slit in the ground |
CA2985772A1 (en) * | 2016-11-18 | 2018-05-18 | Harnischfeger Technologies, Inc. | Modular ground engagement tooling system |
EP3401444B1 (en) * | 2017-05-11 | 2019-11-27 | BAUER Maschinen GmbH | Underground diaphragm and method for creating a slit in the ground |
EP4053342B1 (en) | 2021-03-01 | 2023-10-11 | BAUER Maschinen GmbH | Underground wall milling device and method for creating a milled slit in the ground |
EP4101989A1 (en) | 2021-06-07 | 2022-12-14 | BAUER Maschinen GmbH | Transportable winch device for a construction machine |
-
2019
- 2019-04-04 EP EP19167353.2A patent/EP3719207B1/en active Active
- 2019-04-04 ES ES19167353T patent/ES2911553T3/en active Active
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- 2020-02-13 WO PCT/EP2020/053808 patent/WO2020200561A1/en active Application Filing
- 2020-02-13 CN CN202080026654.5A patent/CN113614312B/en active Active
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KR102621289B1 (en) | 2024-01-04 |
SG11202109942UA (en) | 2021-10-28 |
CN113614312B (en) | 2022-11-18 |
CN113614312A (en) | 2021-11-05 |
JP7316374B2 (en) | 2023-07-27 |
US20220162828A1 (en) | 2022-05-26 |
JP2022536575A (en) | 2022-08-18 |
WO2020200561A1 (en) | 2020-10-08 |
EP3719207A1 (en) | 2020-10-07 |
BR112021018951A2 (en) | 2022-01-18 |
KR20210134722A (en) | 2021-11-10 |
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