EP2623677B1 - Assembly and method for manufacturing a slotted wall element - Google Patents

Assembly and method for manufacturing a slotted wall element Download PDF

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Publication number
EP2623677B1
EP2623677B1 EP12000598.8A EP12000598A EP2623677B1 EP 2623677 B1 EP2623677 B1 EP 2623677B1 EP 12000598 A EP12000598 A EP 12000598A EP 2623677 B1 EP2623677 B1 EP 2623677B1
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EP
European Patent Office
Prior art keywords
removal device
removal
measuring device
ground
ropes
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP12000598.8A
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German (de)
French (fr)
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EP2623677A1 (en
Inventor
Christoph Schwanz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bauer Spezialtiefbau GmbH
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Bauer Spezialtiefbau GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Bauer Spezialtiefbau GmbH filed Critical Bauer Spezialtiefbau GmbH
Priority to PL12000598T priority Critical patent/PL2623677T3/en
Priority to EP12000598.8A priority patent/EP2623677B1/en
Priority to HUE12000598A priority patent/HUE024532T2/en
Priority to ES12000598.8T priority patent/ES2533573T3/en
Priority to US13/608,972 priority patent/US8864422B2/en
Priority to CA2795681A priority patent/CA2795681C/en
Priority to RU2012149608/03A priority patent/RU2528329C2/en
Priority to MYPI2012005328A priority patent/MY168673A/en
Priority to JP2013014346A priority patent/JP5642813B2/en
Priority to KR1020130010902A priority patent/KR101459063B1/en
Publication of EP2623677A1 publication Critical patent/EP2623677A1/en
Priority to HK13109465.2A priority patent/HK1182151A1/en
Application granted granted Critical
Publication of EP2623677B1 publication Critical patent/EP2623677B1/en
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Anticipated expiration legal-status Critical

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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D33/00—Testing foundations or foundation structures
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/18—Bulkheads or similar walls made solely of concrete in situ
    • 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
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/20—Bulkheads or similar walls made of prefabricated parts and concrete, including reinforced concrete, in situ

Definitions

  • the invention relates to a method for creating a slot wall element in the ground according to the preamble of claim 1.
  • the invention further relates to an arrangement for creating a slot wall element in the ground according to the preamble of claim 13.
  • a slot is created in the ground by means of a removal device by removing soil material and a hardenable medium is introduced into the slot to form the slot wall element.
  • the arrangement for creating a slot wall element comprises a carrier device, an ablation device suspended on the carrier for removing soil material for creating a slot in the bottom and an inlet device for introducing a support medium, in particular a support suspension, into the slot, which later against a curable Medium, such as concrete, is replaced or self-curing.
  • Slot walls are usually constructed of individual, juxtaposed slot wall elements or slats. In order to avoid leaks between the individual slit or sealing wall slats, the individual slats may deviate only slightly from the verticality.
  • an ultrasonic measuring device is discharged into a slot filled with a support suspension.
  • the ultrasound measuring device can measure the position or the contour of the wall surface of the slot due to the transit times of the sound. During the measurement it is assumed that the ultrasonic measuring device hangs vertically on a rope in the slot. Over the life of the sound wall distance is determined by a vertical center line in which the rope is located.
  • the measurement with a code device is complicated, since the removal device, for example a gripper or a trench wall cutter, has to be pulled completely out of the slot before the ultrasound measuring device can be lowered.
  • the ultrasonic measurement only works if the specific gravity of the support fluid is low. If the support suspension is heavily enriched with fines, first the entire support liquid must be replaced before the measurement can be carried out.
  • inclinometers When measuring with inclinometers, inclinometers are attached to the stripper.
  • the inclination transducers are used to measure the inclination of the erosion device during the drilling process.
  • the measuring accuracy depends on the dynamic loads on the material removal device.
  • Another disadvantage is that although the inclination of the ablation device can be determined, but not a lateral drifting of the Abtrags expertss during the removal of the soil material. From a device driver such a lateral drifting during the removal process can not be determined.
  • a disadvantage of both measuring techniques is that in each case only individual diaphragm wall slats can be measured, but not a connection of two adjacent slats.
  • the assessment of individual joints between the diaphragm wall slats remains uncertain, since there is no spatial connection and no comparison several measurements can be made, or only with considerable additional effort on measurement of the baffle and the device location is possible.
  • a trench wall device with a device for adjusting the suspension point of the support cable goes out of the EP 0 903 443 A2 out.
  • the JP 6-108456 discloses a measuring device for a trench cutter, in which the ropes are guided by through sleeves. Changes in position of the cables cause a displacement of a measuring rod, to which the passage sleeve is attached.
  • the invention has for its object to provide a method and an arrangement for creating a slot wall element in the ground, which allow a precise and economic creation of a slot wall.
  • the inventive method is characterized in that between the Abtrags réelle and a carrier device are stretched at least two cables to which by means of a measuring device respectively the positions of at least two vertically spaced cable points of a rope are determined by means of angle and distance measurements, and that the determined positions of the Rope points are used to determine a position of the erosion device in the ground.
  • the arrangement according to the invention is characterized in that at least two ropes are stretched between the removal and the carrier device, that a measuring device is provided, through which at least two ropes are secured by means of angle gauges. and distance measurements in each case the positions of at least two vertically spaced rope points can be determined, and that an evaluation device is provided, with which a position of the Abtrags expertss in the ground using data from the measuring device can be determined.
  • a first basic idea of the invention can be seen in clamping between the removal device, for example a trench wall cutter or a trench wall gripper, and the carrier device, for example a carrier vehicle for the ablation device, at least two ropes whose respective orientation in the space for determining the position of the ablation device and of the slot in the ground is detected.
  • the spatial position of at least two cable points is determined according to the invention for each rope. These rope points are basically freely selectable.
  • a mathematical vector is spanned, its orientation for determining the position of the Abtragsuzes is used.
  • the direction of expansion of the ropes and the position of a rope point with respect to a given reference point can be used to deduce the position of the erosion device.
  • the method according to the invention and the arrangement according to the invention make it possible in particular to detect a lateral drifting off of the removal device.
  • a second basic idea of the invention consists in the use of several, in particular at least two ropes, which make it possible to determine the orientation of the removal device in space, that is to say the three-dimensional position of the removal device.
  • a lateral tilting, ie a deviation from the vertical, and a torsion, ie a rotation about the vertical, of the removal device can be determined.
  • the shape and position of the slot can be determined.
  • separate ropes can be used as ropes.
  • at least one of the cables is a carrying cable to which the removal device is suspended. It is particularly advantageous if both ropes are suspension cables.
  • the carrying cable or the carrying cables of the removal device can thus be used at the same time for determining the position of the removal device, so that no separate measuring cables are required.
  • the use of the suspension ropes as measuring ropes also has the advantage that it can be assumed that the ropes are tensioned in a straight line in view of the weight of the Abtrags confuses, unless the Abtrags réelle rears with flaccid ropes at the bottom of the slot.
  • a depth position of the removal device is determined in the ground and used to determine the position of the removal device.
  • the depth position can be determined, for example, by means of a measuring device on the removal device or via the take-off length of the carrying cable or of the support edges to which the removal device is suspended. From the data of the rope points or the vector determined from this and the data for the Depth position of Abtrags experts can be calculated at any time a unique spatial position of the Abtrags mars and the shape and position of the slot.
  • the removal process is interrupted before determining the positions of the cable points, so that the Abtrags réelle and the ropes are brought to rest.
  • the accuracy of measurement can be improved by tensioning the cables in a targeted manner before determining the positions of the cable points.
  • tensioning the cables it is provided in particular to pull up the removal device slightly, that is to say lift it from the bottom surface of the slot if necessary, so that the cables, in particular the suspension cables, are tightened.
  • a cable tensioning device can be provided. This results in a straight line between the attachment point of the ropes on Abtrags réelle and a pivot point on the carrier, which may be in particular a pulley.
  • the measurement of the at least four measuring points can be done relatively quickly, so that only a brief interruption of the manufacturing process takes place. It is particularly advantageous that the Abtrags réelle can remain in the slot during the measurements.
  • more than two ropes are provided, on each of which the positions of at least two rope points are determined.
  • the measurement accuracy can be further increased and / or a control measurement can be carried out.
  • the reliability of the position of the removal device can also be increased by the fact that between two rope points of a rope, the position of at least one third rope point is determined as a control measuring point. If it turns out that the two measuring points for calculating the vector and the control measuring point lie on a straight line, it can be assumed that the rope is straight along the entire length.
  • the measuring device is located at or above the ground surface with an unobstructed view of the ropes.
  • the measuring device aims at the ropes and determines the position of the rope over at least two measured values per rope Rope in the room.
  • the two measuring points are located at different heights above the ground surface.
  • one of the at least two measuring points is arranged as far down as possible and the other as far above.
  • a lower measuring point is to be understood as meaning in particular a measuring point near the ground surface and an upper measuring point means a measuring point, for example, near a mast top of the carrier device.
  • a measuring device is used for angle and distance measurement, which allows angle measurements in the vertical and horizontal directions and additionally the measurement of a distance.
  • a total station is used as a measuring device.
  • the ropes are optically sighted by the tachymeter.
  • the measuring device emits an electromagnetic beam, for example a light beam, which is reflected by the targeted cable point.
  • the rope point can basically be any point on the rope.
  • There is a measurement of the distance of the cable point from the meter for example by means of transit time measurement or phase shift.
  • the angle of the light beam directed at the cable point with respect to a given reference axis is determined. Through the distance and angle measurement carried out in this way, the position of the targeted cable point in the room can be determined. The determination of the position of the other cable points is carried out in the same way.
  • the light beam is preferably light in the infrared range and preferably a laser beam.
  • the center of the rope for example, with a crosshair of the tachymeter, be anvinstrument.
  • the sighting is preferably done only after calming the ropes, so with ropes as possible.
  • a position of the measuring device and / or the removal device is determined with reference to a construction site coordinate system. If, for example, the position or the position of the measuring device with respect to the construction site coordinate system is known, the result can also be derived from this Determine the position of the removal device in relation to the construction site coordinate system. This allows an economical and rapid creation of a slot wall element with a predetermined contour and position at a predetermined position with respect to the construction site coordinate system.
  • an inclination of the ablation device to the vertical is measured by means of a inclinometer or inclinometer.
  • the inclinometer is preferably arranged on or in the removal device. If one knows the spatial position of the articulation points of the ropes on the ablation device, then the position of the footprint of the ablation device and the spatial position of the ablation device in the floor can be closed by adding a further vector which indicates the inclination and length of the ablation device. The length of this inclination vector corresponds to the length of the removal device from the point of articulation of a rope to the footprint.
  • the measurement result of the inclinometer is transmitted, for example via cable, to the driver's cab or to an evaluation device or a control computer.
  • the inclination of the Abtrags réelles is always measured during the sinking, in order to detect a deviation from the vertical in time and to ensure the production of a vertical slot by position correction.
  • the creation of the slot wall element is further facilitated by the location of the Abtrags experts displayed by means of an evaluation using data from the meter and possibly the inclinometer and / or an instruction for position correction is specified.
  • the position of the removal device in the slot or in the bottom of an operator of an inventive arrangement can be displayed on a display device. The operator may then perform a position correction if necessary.
  • the evaluation device specifies measures for correcting the position based on the ascertained, current position of the ablation device. For example, a value of an adjustment mechanism for position correction, for example, a control flap of the Abtragsuzes be specified, which can be adjusted.
  • the slit can be created particularly conveniently if the position of the erosion device is with a control device using data from the measuring device and optionally the inclinometer is controlled automatically.
  • a control device using data from the measuring device and optionally the inclinometer is controlled automatically.
  • a computer or computer may initiate control of the ablation device directly without human intervention.
  • the data of the measuring device in particular the measurement data of the cable points or data based thereon, are transmitted via cable or by radio to the evaluation device and / or the control device.
  • a transmission of the data in a driver's cab of the carrier device can take place.
  • the sighting of the measuring points by the measuring device can be carried out, for example, by a surveyor who operates the measuring device.
  • the measuring device independently targets the measuring points. This can be done for example via the use of lasers, which cause control of the meter.
  • An automatic sighting of the measuring points can also take place in that sighting elements are provided on the ropes at predetermined positions, for example mirrors, reflectors or foils.
  • the sighting elements can be temporarily attached to the ropes. They can facilitate sighting by the meter.
  • signal-transmitting elements at defined positions on the cables, which can be located by a receiver in the measuring device. By locating the meter can be automatically aligned to the measuring points.
  • a signaling element could for example be an ultrasonic or radio transmitter.
  • the measuring device is arranged at a distance from the carrier device.
  • the measuring device can be arranged as an independent device, in particular several meters away from the carrier device, next to the carrier device.
  • the measuring device is mechanically decoupled from the carrier device, so that movements of the carrier device are not transmitted to the measuring device.
  • the meter is at a distance from the carrier placed on the ground surface.
  • the measuring device is attached to the carrier device, for example on the mast.
  • a display device which displays the position of the removal device using data from the measuring device.
  • the display device may, for example, have a display monitor, which may be arranged, for example, in a driver's cab of the carrier device.
  • the measured values of the measuring device or the position of the ablation device can be displayed, for example, in a graphical representation. In this case, a deviation from a theoretical vertical line, a torsion and / or a drifting away of the removal device is preferably displayed.
  • the driver of the carrier device can then, for example by means of control flaps on Abtrags réelle, influence the position of the Abtrags confuses.
  • a particularly precise and fast slot travel position can be achieved by providing a control device for the automatic control of the removal device using data from the measuring device.
  • FIG Fig. 1 An inventive arrangement 10 for creating a slot wall element 62 is shown in FIG Fig. 1 shown.
  • the arrangement comprises a construction implement 12, in particular a device for creating a diaphragm wall.
  • the construction work implement 12 has a carrier device 14, on which an ablation device 30, for example a trench wall cutter or a trench wall grab, is suspended via two cables 26 in the form of carrying ropes.
  • an ablation device 30 for example a trench wall cutter or a trench wall grab
  • a carrier vehicle 16 which has an undercarriage 18 and a rotatably mounted about a vertical pivot axis superstructure 20
  • a mast 22 is mounted on a carrier vehicle 16.
  • the support cables are guided over a deflection roller 24 arranged in the upper region of the mast 22 and can be wound up or down by means of a winch 28.
  • the removal device 30 suspended from the suspension ropes 30, which may also be referred to as the excavation device, comprises a frame 32 which can be lowered into a slot 58 in the bottom 64, at the lower end of which at least one removal tool, in particular a cutting wheel 34, is arranged.
  • the cutting wheel 34 is rotatably mounted on the frame 34 for removing soil material.
  • a slot 58 in the bottom 64 is first created by means of the removal device 30.
  • the Abtrags réelle 30 is thereby lowered substantially vertically and created by removal or excavation of soil material, the slot 58. This is after or during its creation with a curable medium, in particular a curable suspension, concrete or earth concrete, filled, which to the sealing or Slot wall element 62 hardens.
  • Fig. 2 The creation of one of a plurality of sealing or slot wall elements 62 existing sealing or slot wall 60 is in Fig. 2 shown schematically. To create the slot wall 60 successive individual slot wall elements 62 are created, each overlapping, as in Fig. 2 shown.
  • the individual slot wall elements 62 of the slot wall 60 and the slot wall 60 must be precisely aligned. In particular, tilts, drifts and torsions of the slot wall elements 62 are to be avoided.
  • the shape of the created slots 58 corresponds to FIG individual slot wall elements 62 and the slot wall 60.
  • the position of the individual slots 58 is in turn determined by the position of the Abtrags experts 30.
  • the position of the slot wall elements 62 to be created can thus be determined.
  • a measuring device 40 is provided according to the invention.
  • the measuring device 40 is, in particular, a tachymeter, which can be operated by a surveyor and is set up above a floor surface 66.
  • cable points 42 in particular optically, can be sighted and their spatial position determined as a measured value.
  • the measuring or cable points 42 are located above the bottom surface 66 or outside the slot 58.
  • a vector 46 of the respective cable 26 can be calculated, in the extension of which a point of articulation of the cable 26 is located on the removal device 30.
  • a second point of articulation on the removal device 30 can be determined.
  • the spatial position or orientation of the ablation device 30 in the bottom 64 can now be determined.
  • the removal device 30 hangs perpendicularly at the articulation points of the cables 26.
  • an inclinometer may be provided on or in the removal tool 30. This can serve as a control for the driver in the vertical lowering of the removal tool 30. If the inclinometer 50 shows an angle of the removal tool 30 deviating from the perpendicular, an inclined vector whose length corresponds to the length of the removal tool 30 can be added to determine the position and orientation of the contact surface of the removal tool 30 with the determined points of articulation of the cables on the removal tool 30.
  • the meter When creating the slot wall 60, the meter may remain stationary during the creation of a predetermined number of slot wall elements while the device 10 is indexed to create additional slot wall elements 62.
  • At least one further measuring point 42 can be determined as the control measuring point 44 between two measuring or cable points 42 of a cable 26, which serve as calculated values for determining the vector 46. If all the measuring points 42 of a rope lie on a straight line, it can be assumed that the cable 26 runs overall straight.
  • a fixed construction site coordinate system 68 is set up.
  • the position of the measuring device 40 is relative to the construction site coordinate system 68 known.
  • the construction site coordinate system 68 has, for example, a plurality of fixed points 70 as reference points.
  • the cable or measuring points 42 on the cables 26 can also be determined with respect to the construction site coordinate system 68.
  • the spatial position of the removal device 30 with respect to the construction site coordinate system 68 can also be calculated.
  • Fig. 3 schematically illustrates different cross-sectional planes 36 of a Abtrags réelles 30 which illustrate the position of the Abtrags réelles 30 at different depths in the slot 58 and the resulting slit wall element 62.
  • an ideal guide of the removal device 30 is shown, in which the individual cross-sectional planes 36 are arranged substantially parallel and vertically with one another.
  • one of the cross-sectional planes 36 is tilted.
  • the slot 58 has an undesirable position, which can cause leaks in the slot wall 60.
  • Such undesirable variations of individual slot wall elements 62 can be reliably and inexpensively avoided with the present invention.
  • the position of the removal device 30 in the slot can be displayed to the operator of the construction work device in a driver's cab on a display 17.
  • an absolute position of the ablation device 30 in the slot 58 can be represented with respect to a zero line of verticality.
  • a guide wall or drilling template 72 may be provided at a predetermined position in an upper region of the floor 64.

Description

Die Erfindung betrifft ein Verfahren zum Erstellen eines Schlitzwandelementes im Boden gemäß dem Oberbegriff des Anspruchs 1. Die Erfindung betrifft des Weiteren eine Anordnung zum Erstellen eines Schlitzwandelementes im Boden gemäß dem Oberbegriff des Anspruchs 13.The invention relates to a method for creating a slot wall element in the ground according to the preamble of claim 1. The invention further relates to an arrangement for creating a slot wall element in the ground according to the preamble of claim 13.

Bei dem erfindungsgemäßen Verfahren wird mittels eines Abtragsgerätes durch Abtragen von Bodenmaterial ein Schlitz im Boden erstellt und ein aushärtbares Medium zum Bilden des Schlitzwandelementes in den Schlitz eingebracht.In the method according to the invention, a slot is created in the ground by means of a removal device by removing soil material and a hardenable medium is introduced into the slot to form the slot wall element.

Die Anordnung zum Erstellen eines Schlitzwandelementes gemäß der Erfindung umfasst ein Trägergerät, ein an dem Trägergerät aufgehängtes Abtragsgerät zum Abtragen von Bodenmaterial zum Erstellen eines Schlitzes im Boden und eine Einleiteinrichtung zum Einleiten eine Stützmediums, insbesondere einer Stützsuspension, in den Schlitz, welches später gegen ein aushärtbares Medium, beispielsweise Beton, ausgetauscht wird oder selbst aushärtet.The arrangement for creating a slot wall element according to the invention comprises a carrier device, an ablation device suspended on the carrier for removing soil material for creating a slot in the bottom and an inlet device for introducing a support medium, in particular a support suspension, into the slot, which later against a curable Medium, such as concrete, is replaced or self-curing.

Insbesondere bei Schlitz- beziehungsweise Dichtwänden mit großer Tiefe ist es von Bedeutung, bereits bei der Herstellung des Schlitzes Informationen über die Lage des Schlitzes, insbesondere dessen Vertikalität, zu erhalten. Schlitzwände sind in der Regel aus einzelnen, nebeneinander angeordneten Schlitzwandelementen oder Lamellen aufgebaut. Um Undichtigkeiten zwischen den einzelnen Schlitz- beziehungsweise Dichtwandlamellen zu vermeiden, dürfen die einzelnen Lamellen nur geringfügig von der Vertikalität abweichen.Especially with slot or sealing walls with great depth, it is important to obtain information on the position of the slot, in particular its verticality already in the production of the slot. Slot walls are usually constructed of individual, juxtaposed slot wall elements or slats. In order to avoid leaks between the individual slit or sealing wall slats, the individual slats may deviate only slightly from the verticality.

Im Stand der Technik sind die folgenden Verfahren zur Überprüfung der Vertikalität von Schlitzen bekannt:In the prior art, the following methods for verifying the verticality of slots are known:

Bei einer sogenannten Koden-Messung zur Überprüfung der Vertikalität und insbesondere der Kontur des Schlitzes wird in einen mit einer Stützsuspension gefüllten Schlitz ein Ultraschallmessgerät abgelassen. Das Ultraschallmessgerät kann aufgrund von Laufzeiten des Schalles die Lage beziehungsweise die Kontur der Wandoberfläche des Schlitzes messen. Bei der Messung wird davon ausgegangen, dass das Ultraschallmessgerät vertikal an einem Seil im Schlitz hängt. Über die Laufzeit des Schalles wird die Wandentfernung von einer vertikalen Mittellinie, in welcher sich das Seil befindet, bestimmt.In a so-called Koden measurement for checking the verticality and in particular the contour of the slot, an ultrasonic measuring device is discharged into a slot filled with a support suspension. The ultrasound measuring device can measure the position or the contour of the wall surface of the slot due to the transit times of the sound. During the measurement it is assumed that the ultrasonic measuring device hangs vertically on a rope in the slot. Over the life of the sound wall distance is determined by a vertical center line in which the rope is located.

Die Messung mit einem Kodengerät ist aufwändig, da das Abtragsgerät, beispielsweise ein Greifer oder eine Schlitzwandfräse, vollständig aus dem Schlitz gezogen werden muss, bevor das Ultraschallmessgerät abgesenkt werden kann. Zudem funktioniert die Ultraschallmessung nur, wenn das spezifische Gewicht der Stützflüssigkeit gering ist. Ist die Stützsuspension stark mit Feinteilen angereichert, muss erst die gesamte Stützflüssigkeit ausgetauscht werden, bevor die Messung durchgeführt werden kann.The measurement with a code device is complicated, since the removal device, for example a gripper or a trench wall cutter, has to be pulled completely out of the slot before the ultrasound measuring device can be lowered. In addition, the ultrasonic measurement only works if the specific gravity of the support fluid is low. If the support suspension is heavily enriched with fines, first the entire support liquid must be replaced before the measurement can be carried out.

Bei einer Messung mit Inklinometern werden Neigungsmessaufnehmer an dem Abtragsgerät befestigt. Mit den Neigungsmessaufnehmern wird die Neigung des Abtragsgerätes während des Abteufvorgangs gemessen. Die Messgenauigkeit ist dabei abhängig von den dynamischen Belastungen auf das Abtragsgerät. Ein weiterer Nachteil besteht darin, dass zwar die Neigung des Abtragsgerätes bestimmt werden kann, nicht jedoch ein seitliches Abdriften des Abtragsgerätes während dem Abtragen des Bodenmaterials. Von einem Gerätefahrer ist ein solches seitliches Abdriften während des Abtragvorgangs nicht festzustellen.When measuring with inclinometers, inclinometers are attached to the stripper. The inclination transducers are used to measure the inclination of the erosion device during the drilling process. The measuring accuracy depends on the dynamic loads on the material removal device. Another disadvantage is that although the inclination of the ablation device can be determined, but not a lateral drifting of the Abtragsgerätes during the removal of the soil material. From a device driver such a lateral drifting during the removal process can not be determined.

Zur Messung des Verlaufes des Schlitzes in vertikaler Richtung ist es möglich, gesonderte Messfahrten mit dem Abtragsgerät auszuführen. Bei diesen Messfahrten wird dann ein Polygonzug ermittelt, der jeweils von der Schlitzoberkante bis zur erreichten Tiefenlage verläuft. Diese gesonderten Messfahrten sind jedoch zeitraubend und teuer.To measure the course of the slot in the vertical direction, it is possible to carry out separate test drives with the removal device. During these test runs, a traverse is then determined, which runs from the upper edge of the slot to the reached depth position. However, these separate test drives are time consuming and expensive.

Ein Nachteil beider Messtechniken liegt darin, dass jeweils nur einzelne Schlitzwandlamellen vermessen werden können, nicht jedoch eine Anbindung von zwei nebeneinander liegenden Lamellen. Die Beurteilung einzelner Fugen zwischen den Schlitzwandlamellen bleibt unsicher, da keine räumliche Anbindung und kein Vergleich mehrerer Messungen erfolgen kann, oder nur mit erheblichem Zusatzaufwand an Einmessung der Leitwand und des Gerätestandortes möglich ist.A disadvantage of both measuring techniques is that in each case only individual diaphragm wall slats can be measured, but not a connection of two adjacent slats. The assessment of individual joints between the diaphragm wall slats remains uncertain, since there is no spatial connection and no comparison several measurements can be made, or only with considerable additional effort on measurement of the baffle and the device location is possible.

Ein Schlitzwandgerät mit einer Einrichtung zum Verstellen des Aufhängepunktes des Tragseiles geht aus der EP 0 903 443 A2 hervor.A trench wall device with a device for adjusting the suspension point of the support cable goes out of the EP 0 903 443 A2 out.

Die JP 6-108456 offenbart eine Messeinrichtung für eine Schlitzwandfräse, bei welcher die Seile durch Durchgangshülsen geführt sind. Lageveränderungen der Seile bewirken eine Verschiebung einer Messstange, an welcher die Durchgangshülse befestigt ist.The JP 6-108456 discloses a measuring device for a trench cutter, in which the ropes are guided by through sleeves. Changes in position of the cables cause a displacement of a measuring rod, to which the passage sleeve is attached.

Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren und eine Anordnung zum Erstellen eines Schlitzwandelementes im Boden anzugeben, welche eine präzise und wirtschaftliche Erstellung einer Schlitzwand ermöglichen.The invention has for its object to provide a method and an arrangement for creating a slot wall element in the ground, which allow a precise and economic creation of a slot wall.

Die Aufgabe wird erfindungsgemäß durch ein Verfahren mit den Merkmalen des Anspruchs 1 und eine Vorrichtung mit den Merkmalen des Anspruchs 13 gelöst. Bevorzugte Ausgestaltungen der Erfindung sind in den jeweils abhängigen Ansprüchen angegeben.The object is achieved by a method having the features of claim 1 and a device having the features of claim 13. Preferred embodiments of the invention are specified in the respective dependent claims.

Das erfindungsgemäße Verfahren ist dadurch gekennzeichnet, dass zwischen dem Abtragsgerät und einem Trägergerät mindestens zwei Seile gespannt werden, zu welchen mittels eines Messgerätes jeweils die Positionen von mindestens zwei vertikal beabstandeten Seilpunkten eines Seiles mittels Winkel- und Entfernungsmessungen ermittelt werden, und dass die ermittelten Positionen der Seilpunkte zum Bestimmen einer Lage des Abtragsgerätes im Boden verwendet werden.The inventive method is characterized in that between the Abtragsgerät and a carrier device are stretched at least two cables to which by means of a measuring device respectively the positions of at least two vertically spaced cable points of a rope are determined by means of angle and distance measurements, and that the determined positions of the Rope points are used to determine a position of the erosion device in the ground.

Die erfindungsgemäße Anordnung ist dadurch gekennzeichnet, dass zwischen dem Abtrags und dem Trägergerät mindestens zwei Seile gespannt sind, dass ein Messgerät vorgesehen ist, durch welches zu den mindestens zwei Seilen mittels Winkel- und Entfernungsmessungen jeweils die Positionen von mindestens zwei vertikal beabstandeten Seilpunkten ermittelbar sind, und dass eine Auswerteeinrichtung vorgesehen ist, mit welcher eine Lage des Abtragsgerätes im Boden unter Verwendung von Daten des Messgerätes bestimmbar ist.The arrangement according to the invention is characterized in that at least two ropes are stretched between the removal and the carrier device, that a measuring device is provided, through which at least two ropes are secured by means of angle gauges. and distance measurements in each case the positions of at least two vertically spaced rope points can be determined, and that an evaluation device is provided, with which a position of the Abtragsgerätes in the ground using data from the measuring device can be determined.

Ein erster Grundgedanke der Erfindung kann darin gesehen werden, zwischen dem Abtragsgerät, beispielsweise einer Schlitzwandfräse oder einem Schlitzwandgreifer, und dem Trägergerät, beispielsweise einem Trägerfahrzeug für das Abtragsgerät, mindestens zwei Seile zu spannen, deren jeweilige Ausrichtung im Raum zum Bestimmen der Lage des Abtragsgerätes und des Schlitzes im Boden ermittelt wird. Hierzu wird erfindungsgemäß zu jedem Seil die räumliche Position von mindestens zwei Seilpunkten ermittelt. Diese Seilpunkte sind grundsätzlich frei wählbar. Zwischen den voneinander beabstandeten Seilpunkten wird ein mathematischer Vektor aufgespannt, dessen Ausrichtung zur Bestimmung der Lage des Abtragsgerätes verwendet wird. Dadurch, dass die Seile zwischen dem Abtragsgerät und dem Trägergerät gespannt sind, ist davon auszugehen, dass die Seile entlang einer geraden Linie verlaufen, so dass sich Anlenkpunkte der Seile am Abtragsgerät jeweils in Verlängerung der durch die Seilpunkte aufgespannten Vektoren befinden.A first basic idea of the invention can be seen in clamping between the removal device, for example a trench wall cutter or a trench wall gripper, and the carrier device, for example a carrier vehicle for the ablation device, at least two ropes whose respective orientation in the space for determining the position of the ablation device and of the slot in the ground is detected. For this purpose, the spatial position of at least two cable points is determined according to the invention for each rope. These rope points are basically freely selectable. Between the spaced-apart cable points a mathematical vector is spanned, its orientation for determining the position of the Abtragsgerätes is used. Due to the fact that the cables are stretched between the removal device and the carrier device, it can be assumed that the cables run along a straight line, so that points of articulation of the cables on the removal device are in each case an extension of the vectors spanned by the cable points.

Unter der Voraussetzung der Geradlinigkeit der Seile lässt sich über die Ausdehnungsrichtung der Seile sowie die Lage eines Seilpunktes bezüglich eines vorgegebenen Bezugspunktes auf die Lage des Abtragsgerätes schließen. Dies bezieht sich insbesondere auf die Anlenkpunkte oder Anhängepunkte der Seile am Abtragsgerät. Das erfindungsgemäße Verfahren und die erfindungsgemäße Anordnung ermöglichen insbesondere das Erkennen eines seitlichen Abdriftens des Abtragsgerätes.Assuming the straightness of the ropes, the direction of expansion of the ropes and the position of a rope point with respect to a given reference point can be used to deduce the position of the erosion device. This refers in particular to the articulation points or attachment points of the cables on the ablation device. The method according to the invention and the arrangement according to the invention make it possible in particular to detect a lateral drifting off of the removal device.

Ein zweiter Grundgedanke der Erfindung besteht in der Verwendung von mehreren, insbesondere mindestens zwei Seilen, die es ermöglichen, die Ausrichtung des Abtragsgerätes im Raum, also die dreidimensionale Lage des Abtragsgerätes, zu bestimmen. Insbesondere sind eine seitliche Verkippung, also eine Abweichung von der Vertikalen, und eine Torsion, also eine Drehung um die Vertikale, des Abtragsgerätes ermittelbar. Durch die Bestimmung der räumlichen Lage des Abtragsgerätes zu verschiedenen Zeiten lässt sich die Form und Lage des Schlitzes ermitteln.A second basic idea of the invention consists in the use of several, in particular at least two ropes, which make it possible to determine the orientation of the removal device in space, that is to say the three-dimensional position of the removal device. In particular, a lateral tilting, ie a deviation from the vertical, and a torsion, ie a rotation about the vertical, of the removal device can be determined. By determining the spatial position of the Abtragsgerätes at different times, the shape and position of the slot can be determined.

Grundsätzlich können als Seile eigenständige Messseile verwendet werden. Vorzugsweise ist jedoch wenigstens eines der Seile ein Tragseil, an welchem das Abtragsgerät aufgehängt ist. Besonders vorteilhaft ist es, wenn beide Seile Tragseile sind. Das Tragseil oder die Tragseile des Abtragsgerätes können somit gleichzeitig zur Bestimmung der Lage des Abtragsgerätes verwendet werden, so dass keine gesonderten Messseile erforderlich sind. Die Verwendung der Tragseile als Messseile hat zudem den Vorteil, dass man davon ausgehen kann, dass die Seile angesichts des Gewichts des Abtragsgerätes in einer geraden Linie gespannt sind, sofern das Abtragsgerät nicht mit schlaffen Seilen am Boden des Schlitzes aufsteht.In principle, separate ropes can be used as ropes. Preferably, however, at least one of the cables is a carrying cable to which the removal device is suspended. It is particularly advantageous if both ropes are suspension cables. The carrying cable or the carrying cables of the removal device can thus be used at the same time for determining the position of the removal device, so that no separate measuring cables are required. The use of the suspension ropes as measuring ropes also has the advantage that it can be assumed that the ropes are tensioned in a straight line in view of the weight of the Abtragsgerätes, unless the Abtragsgerät rears with flaccid ropes at the bottom of the slot.

In einer bevorzugten Ausgestaltung des Verfahrens ist vorgesehen, dass eine Tiefenlage des Abtragsgerätes im Boden ermittelt und zum Bestimmen der Lage des Abtragsgerätes verwendet wird. Die Tiefenlage kann beispielsweise über eine Messeinrichtung am Abtragsgerät oder über die Abspullänge des Tragseils oder der Tragsiele, an welchen das Abtragsgerät aufgehängt ist, bestimmt werden. Aus den Daten der Seilpunkte beziehungsweise dem hieraus ermittelten Vektor und den Daten zur Tiefenlage des Abtragsgerätes kann zu jedem Zeitpunkt eine eindeutige räumliche Lage des Abtragsgerätes und die Form und Lage des Schlitzes errechnet werden.In a preferred embodiment of the method, it is provided that a depth position of the removal device is determined in the ground and used to determine the position of the removal device. The depth position can be determined, for example, by means of a measuring device on the removal device or via the take-off length of the carrying cable or of the support edges to which the removal device is suspended. From the data of the rope points or the vector determined from this and the data for the Depth position of Abtragsgerätes can be calculated at any time a unique spatial position of the Abtragsgerätes and the shape and position of the slot.

Zur Erhöhung der Messgenauigkeit ist es bevorzugt, dass der Abtragvorgang vor dem Ermitteln der Positionen der Seilpunkte unterbrochen wird, damit das Abtragsgerät und die Seile zur Ruhe gebracht werden.To increase the accuracy of measurement, it is preferred that the removal process is interrupted before determining the positions of the cable points, so that the Abtragsgerät and the ropes are brought to rest.

Die Messgenauigkeit kann außerdem dadurch verbessert werden, dass die Seile vor dem Ermitteln der Positionen der Seilpunkte gezielt gespannt werden. Hierzu ist insbesondere vorgesehen, das Abtragsgerät etwas hochzuziehen, also gegebenenfalls von der Bodenfläche des Schlitzes anzuheben, damit sich die Seile, insbesondere die Tragseile, straffen. Bei der Verwendung separater Messseile kann eine Seilspanneinrichtung vorgesehen sein. Damit ergibt sich eine gerade Linie zwischen dem Anhängepunkt der Seile am Abtragsgerät und einem Anlenkpunkt am Trägergerät, welcher insbesondere eine Umlenkrolle sein kann.In addition, the accuracy of measurement can be improved by tensioning the cables in a targeted manner before determining the positions of the cable points. For this purpose, it is provided in particular to pull up the removal device slightly, that is to say lift it from the bottom surface of the slot if necessary, so that the cables, in particular the suspension cables, are tightened. When using separate measuring ropes, a cable tensioning device can be provided. This results in a straight line between the attachment point of the ropes on Abtragsgerät and a pivot point on the carrier, which may be in particular a pulley.

Die Messung der mindestens vier Messpunkte kann verhältnismäßig schnell erfolgen, so dass nur eine kurze Unterbrechung des Herstellungsverfahrens erfolgt. Dabei ist insbesondere vorteilhaft, dass das Abtragsgerät während der Messungen im Schlitz verbleiben kann.The measurement of the at least four measuring points can be done relatively quickly, so that only a brief interruption of the manufacturing process takes place. It is particularly advantageous that the Abtragsgerät can remain in the slot during the measurements.

In einer weiteren bevorzugten Ausgestaltung der Erfindung sind mehr als zwei Seile vorgesehen, an welchen jeweils die Positionen von mindestens zwei Seilpunkten bestimmt werden. Hierdurch kann die Messgenauigkeit weiter erhöht und/oder eine Kontrollmessung durchgeführt werden.In a further preferred embodiment of the invention, more than two ropes are provided, on each of which the positions of at least two rope points are determined. As a result, the measurement accuracy can be further increased and / or a control measurement can be carried out.

Die Zuverlässigkeit der Lagebestimmung des Abtragsgerätes kann außerdem dadurch erhöht werden, dass zwischen zwei Seilpunkten eines Seils die Position zumindest eines dritten Seilpunktes als Kontrollmesspunkt bestimmt wird. Ergibt sich, dass die beiden Messpunkte zur Berechnung des Vektors sowie der Kontrollmesspunkt auf einer geraden Linie liegen, kann man davon ausgehen, dass das Seil auf der gesamten Länge geradlinig ist.The reliability of the position of the removal device can also be increased by the fact that between two rope points of a rope, the position of at least one third rope point is determined as a control measuring point. If it turns out that the two measuring points for calculating the vector and the control measuring point lie on a straight line, it can be assumed that the rope is straight along the entire length.

In einer vorteilhaften Ausgestaltung der Erfindung befindet sich das Messgerät an oder oberhalb der Bodenoberfläche mit freiem Blick auf die Seile. Das Messgerät peilt die Seile an und ermittelt über zumindest zwei Messwerte pro Seil die Lage des Seils im Raum. Die beiden Messpunkte befinden sich auf unterschiedlichen Höhen oberhalb der Bodenoberfläche.In an advantageous embodiment of the invention, the measuring device is located at or above the ground surface with an unobstructed view of the ropes. The measuring device aims at the ropes and determines the position of the rope over at least two measured values per rope Rope in the room. The two measuring points are located at different heights above the ground surface.

Um eine möglichst hohe Genauigkeit zu erreichen, ist einer der mindestens zwei Messpunkte möglichst weit unten angeordnet und der andere möglichst weit oben. Unter einem unteren Messpunkt ist dabei insbesondere ein Messpunkt nahe der Bodenoberfläche und unter einem oberen Messpunkt ein Messpunkt beispielsweise nahe einer Mastspitze des Trägergerätes zu verstehen.In order to achieve the highest possible accuracy, one of the at least two measuring points is arranged as far down as possible and the other as far above. In this case, a lower measuring point is to be understood as meaning in particular a measuring point near the ground surface and an upper measuring point means a measuring point, for example, near a mast top of the carrier device.

Erfindungsgemäß ist es bevorzugt, dass zur Winkel- und Entfernungsmessung ein Messgerät verwendet wird, welches Winkelmessungen in vertikaler und horizontaler Richtung und zusätzlich die Messung einer Entfernung ermöglicht. Vorzugsweise wird ein Tachymeter als Messgerät verwendet. Die Seile werden von dem Tachymeter optisch anvisiert.According to the invention, it is preferred that a measuring device is used for angle and distance measurement, which allows angle measurements in the vertical and horizontal directions and additionally the measurement of a distance. Preferably, a total station is used as a measuring device. The ropes are optically sighted by the tachymeter.

Zur Bestimmung der Position des angepeilten Seilpunktes sendet das Messgerät einen elektromagnetischen Strahl, beispielsweise einen Lichtstrahl aus, welcher von dem angepeilten Seilpunkt reflektiert wird. Der Seilpunkt kann grundsätzlich ein beliebiger Punkt an dem Seil sein. Es erfolgt eine Messung des Abstands des Seilpunkts vom Messgerät, beispielsweise mittels Laufzeitmessung oder Phasenverschiebung. Außerdem wird der Winkel des auf den Seilpunkt gerichteten Lichtstrahls bezüglich einer vorgegebenen Referenzachse bestimmt. Durch die so durchgeführte Entfernungs- und Winkelmessung kann die Position des angepeilten Seilpunktes im Raum bestimmt werden. Die Ermittlung der Position der weiteren Seilpunkte erfolgt auf gleiche Weise.To determine the position of the targeted cable point, the measuring device emits an electromagnetic beam, for example a light beam, which is reflected by the targeted cable point. The rope point can basically be any point on the rope. There is a measurement of the distance of the cable point from the meter, for example by means of transit time measurement or phase shift. In addition, the angle of the light beam directed at the cable point with respect to a given reference axis is determined. Through the distance and angle measurement carried out in this way, the position of the targeted cable point in the room can be determined. The determination of the position of the other cable points is carried out in the same way.

Bei dem Lichtstrahl handelt es sich vorzugsweise um Licht im Infrarotbereich und vorzugsweise um einen Laserstrahl. Zum Anpeilen der Seilpunkte kann beispielsweise die Seilmitte, zum Beispiel mit einem Fadenkreuz des Tachymeters, anvisiert werden. Das Anvisieren erfolgt vorzugsweise erst nach Beruhigung der Seile, also bei möglichst stillstehenden Seilen.The light beam is preferably light in the infrared range and preferably a laser beam. To locate the cable points, for example, the center of the rope, for example, with a crosshair of the tachymeter, be anvisiert. The sighting is preferably done only after calming the ropes, so with ropes as possible.

Erfindungsgemäß ist es bevorzugt, dass eine Position des Messgerätes und/oder des Abtragsgerätes in Bezug auf ein Baustellenkoordinatensystem bestimmt wird. Ist beispielsweise die Position beziehungsweise der Standpunkt des Messgerätes bezüglich des Baustellenkoordinatensystems bekannt, so lässt sich hieraus auch die Position des Abtragsgerätes in Bezug auf das Baustellenkoordinatensystem bestimmen. Dies ermöglicht eine wirtschaftliche und schnelle Erstellung eines Schlitzwandelementes mit einer vorgegebenen Kontur und Lage an einer vorbestimmten Position bezüglich des Baustellenkoordinatensystems.According to the invention, it is preferred that a position of the measuring device and / or the removal device is determined with reference to a construction site coordinate system. If, for example, the position or the position of the measuring device with respect to the construction site coordinate system is known, the result can also be derived from this Determine the position of the removal device in relation to the construction site coordinate system. This allows an economical and rapid creation of a slot wall element with a predetermined contour and position at a predetermined position with respect to the construction site coordinate system.

Des Weiteren ist es bevorzugt, dass mittels eines Neigungsmessers oder Inklinometer eine Neigung des Abtragsgeräts zur Vertikalen gemessen wird. Der Neigungsmesser ist vorzugsweise am oder im Abtragsgerät angeordnet. Kennt man die räumliche Lage der Anlenkpunkte der Seile am Abtragsgerät, so lässt sich durch Addition eines weiteren Vektors, welcher die Neigung und Länge des Abtragsgerätes angibt, auf die Lage der Aufstandsfläche des Abtragsgeräts und die räumliche Lage des Abtragsgeräts im Boden schließen. Die Länge dieses Neigungsvektor entspricht der Länge des Abtragsgeräts vom Anlenkpunkt eines Seils zur Aufstandsfläche. Das Messergebnis des Neigungsmessers wird, beispielsweise über Kabel, in die Fahrerkabine beziehungsweise an eine Auswerteeinrichtung oder einen Steuerungscomputer übermittelt.Furthermore, it is preferred that an inclination of the ablation device to the vertical is measured by means of a inclinometer or inclinometer. The inclinometer is preferably arranged on or in the removal device. If one knows the spatial position of the articulation points of the ropes on the ablation device, then the position of the footprint of the ablation device and the spatial position of the ablation device in the floor can be closed by adding a further vector which indicates the inclination and length of the ablation device. The length of this inclination vector corresponds to the length of the removal device from the point of articulation of a rope to the footprint. The measurement result of the inclinometer is transmitted, for example via cable, to the driver's cab or to an evaluation device or a control computer.

Vorzugsweise wird die Neigung des Abtragsgeräts beim Abteufen ständig gemessen, um eine Abweichung von der Vertikalen rechtzeitig zu erfassen und die Herstellung eines vertikalen Schlitzes durch Lagekorrektur zu gewährleisten.Preferably, the inclination of the Abtragsgeräts is always measured during the sinking, in order to detect a deviation from the vertical in time and to ensure the production of a vertical slot by position correction.

Die Erstellung des Schlitzwandelementes wird des Weiteren dadurch erleichtert, dass mittels einer Auswerteeinrichtung unter Verwendung von Daten des Messgerätes und gegebenenfalls des Neigungsmessers die Lage des Abtragsgerätes angezeigt und/oder eine Anweisung zur Lagekorrektur angegeben wird. Beispielsweise kann die Lage des Abtragsgerätes im Schlitz beziehungsweise im Boden einem Bediener einer erfindungsgemäßen Anordnung auf einer Anzeigeeinrichtung angezeigt werden. Der Bediener kann dann gegebenenfalls eine Lagekorrektur ausführen. Besonders vorteilhaft ist es, wenn die Auswerteeinrichtung basierend auf der ermittelten, aktuellen Lage des Abtragsgerätes dem Fahrer Maßnahmen zur Korrektur der Lage vorgibt. Beispielsweise kann ein Wert eines Verstellmechanismus zur Lagekorrektur, beispielsweise einer Steuerklappe des Abtragsgerätes, angegeben werden, welcher eingestellt werden kann.The creation of the slot wall element is further facilitated by the location of the Abtragsgerätes displayed by means of an evaluation using data from the meter and possibly the inclinometer and / or an instruction for position correction is specified. For example, the position of the removal device in the slot or in the bottom of an operator of an inventive arrangement can be displayed on a display device. The operator may then perform a position correction if necessary. It is particularly advantageous if the evaluation device specifies measures for correcting the position based on the ascertained, current position of the ablation device. For example, a value of an adjustment mechanism for position correction, for example, a control flap of the Abtragsgerätes be specified, which can be adjusted.

Besonders komfortabel lässt sich der Schlitz erstellen, wenn die Lage des Abtragsgerätes mit einer Steuereinrichtung unter Verwendung von Daten des Messgerätes und gegebenenfalls des Neigungsmessers automatisch gesteuert wird. Ein Computer oder Rechner kann beispielsweise eine Steuerung des Abtragsgerätes direkt ohne menschlichen Eingriff veranlassen.The slit can be created particularly conveniently if the position of the erosion device is with a control device using data from the measuring device and optionally the inclinometer is controlled automatically. For example, a computer or computer may initiate control of the ablation device directly without human intervention.

Vorzugsweise werden die Daten des Messgerätes, insbesondere die Messdaten der Seilpunkte oder hierauf basierende Daten, über Kabel oder über Funk an die Auswerteeinrichtung und/oder die Steuereinrichtung übertragen. Insbesondere kann eine Übertragung der Daten in eine Fahrerkabine des Trägergerätes erfolgen.Preferably, the data of the measuring device, in particular the measurement data of the cable points or data based thereon, are transmitted via cable or by radio to the evaluation device and / or the control device. In particular, a transmission of the data in a driver's cab of the carrier device can take place.

Das Anvisieren der Messpunkte durch das Messgerät kann beispielsweise durch einen Vermesser, der das Messgerät bedient, erfolgen. Es ist jedoch auch möglich, dass das Messgerät die Messpunkte selbstständig anvisiert. Dies kann beispielsweise über den Einsatz von Lasern, die eine Steuerung des Messgerätes bewirken, erfolgen. Insbesondere im Hinblick auf eine selbstständige Steuerung des Messgeräts ist es vorteilhaft, wenn sowohl eine vertikale als auch eine horizontale Drehachse des Messgerätes motorisch angetrieben sind.The sighting of the measuring points by the measuring device can be carried out, for example, by a surveyor who operates the measuring device. However, it is also possible that the measuring device independently targets the measuring points. This can be done for example via the use of lasers, which cause control of the meter. In particular, with regard to an independent control of the measuring device, it is advantageous if both a vertical and a horizontal axis of rotation of the measuring device are driven by a motor.

Ein automatisches Anvisieren der Messpunkte kann auch dadurch erfolgen, dass an den Seilen an vorgegebenen Positionen Anvisierungselemente vorgesehen sind, beispielsweise Spiegel, Reflektoren oder Folien. Die Anvisierungselemente können temporär an den Seilen befestigt sein. Sie können das Anvisieren durch das Messgerät erleichtern.An automatic sighting of the measuring points can also take place in that sighting elements are provided on the ropes at predetermined positions, for example mirrors, reflectors or foils. The sighting elements can be temporarily attached to the ropes. They can facilitate sighting by the meter.

Grundsätzlich ist es auch möglich, an definierten Positionen an den Seilen signalgebende Elemente anzuordnen, welche von einem Empfänger im Messgerät geortet werden können. Über die Ortung kann das Messgerät automatisch auf die Messpunkte ausgerichtet werden. Ein solches signalgebendes Element könnte beispielsweise ein Ultraschall- oder Funksender sein.In principle, it is also possible to arrange signal-transmitting elements at defined positions on the cables, which can be located by a receiver in the measuring device. By locating the meter can be automatically aligned to the measuring points. Such a signaling element could for example be an ultrasonic or radio transmitter.

Hinsichtlich der Anordnung zum Erstellen des Schlitzwandelementes ist es bevorzugt, dass das Messgerät beabstandet zu dem Trägergerät angeordnet ist. Insbesondere kann das Messgerät als eigenständiges Gerät, insbesondere mehrere Meter von dem Trägergerät entfernt, neben dem Trägergerät angeordnet sein. Hierbei ist insbesondere vorgesehen, dass das Messgerät von dem Trägergerät mechanisch entkoppelt ist, so dass Bewegungen des Trägergerätes nicht auf das Messgerät übertragen werden. Beispielsweise ist das Messgerät mit Abstand zum Trägergerät an der Bodenoberfläche aufgestellt. Grundsätzlich ist es aber auch denkbar, dass das Messgerät am Trägergerät, beispielsweise am Mast, befestigt ist.With regard to the arrangement for creating the slot wall element, it is preferred that the measuring device is arranged at a distance from the carrier device. In particular, the measuring device can be arranged as an independent device, in particular several meters away from the carrier device, next to the carrier device. In this case, it is provided in particular that the measuring device is mechanically decoupled from the carrier device, so that movements of the carrier device are not transmitted to the measuring device. For example, the meter is at a distance from the carrier placed on the ground surface. In principle, however, it is also conceivable that the measuring device is attached to the carrier device, for example on the mast.

Vorzugsweise ist eine Anzeigeeinrichtung vorgesehen, welche unter Verwendung von Daten des Messgerätes die Lage des Abtragsgerätes anzeigt. Die Anzeigeeinrichtung kann beispielsweise einen Anzeigemonitor aufweisen, der zum Beispiel in einer Fahrerkabine des Trägergerätes angeordnet sein kann. Die Messwerte des Messgerätes beziehungsweise die Lage des Abtragsgerätes kann beispielsweise in einer graphischen Darstellung angezeigt werden. Vorzugsweise wird hierbei eine Abweichung von einer theoretischen Vertikallinie, eine Torsion und/oder ein Abdriften des Abtragsgerätes angezeigt. Der Fahrer des Trägergerätes kann dann, beispielsweise mittels Steuerklappen am Abtragsgerät, die Lage des Abtragsgerätes beeinflussen.Preferably, a display device is provided which displays the position of the removal device using data from the measuring device. The display device may, for example, have a display monitor, which may be arranged, for example, in a driver's cab of the carrier device. The measured values of the measuring device or the position of the ablation device can be displayed, for example, in a graphical representation. In this case, a deviation from a theoretical vertical line, a torsion and / or a drifting away of the removal device is preferably displayed. The driver of the carrier device can then, for example by means of control flaps on Abtragsgerät, influence the position of the Abtragsgerätes.

Eine besonders präzise und schnelle Schlitzwanderstellung kann dadurch erreicht werden, dass eine Steuereinrichtung zur automatischen Steuerung des Abtragsgerätes unter Verwendung von Daten des Messgerätes vorgesehen ist.A particularly precise and fast slot travel position can be achieved by providing a control device for the automatic control of the removal device using data from the measuring device.

Die Erfindung wird nachfolgend anhand bevorzugter Ausführungsformen, welche in den beiliegenden Zeichnungen schematisch dargestellt sind, weiter beschrieben. In den Zeichnungen zeigt:

Fig. 1
eine Anordnung zum Erstellen eines Schlitzwandelementes beziehungsweise einer Schlitzwand;
Fig. 2
eine schematische Darstellung der Erstellung einer aus mehreren Schlitzwandelementen bestehenden Schlitzwand und
Fig. 3
zwei Schlitzwandelemente mit schematisch angedeuteten Lagen des Abtragsgeräts während ihrer Erstellung.
The invention will be further described below with reference to preferred embodiments, which are shown schematically in the accompanying drawings. In the drawings shows:
Fig. 1
an arrangement for creating a slot wall element or a slot wall;
Fig. 2
a schematic representation of the creation of a plurality of slot wall elements existing diaphragm wall and
Fig. 3
two slot wall elements with schematically indicated layers of Abtragsgeräts during its creation.

Einander entsprechende Elementen sind in allen Figuren mit denselben Bezugszeichen gekennzeichnet.Corresponding elements are identified in all figures with the same reference numerals.

Eine erfindungsgemäße Anordnung 10 zum Erstellen eines Schlitzwandelementes 62 ist in Fig. 1 dargestellt. Die Anordnung umfasst ein Bauarbeitsgerät 12, insbesondere eine Vorrichtung zum Erstellen einer Schlitzwand. Das Bauarbeitsgerät 12 weist ein Trägergerät 14 auf, an dem über zwei Seile 26 in Form von Tragseilen ein Abtragsgerät 30, beispielsweise eine Schlitzwandfräse oder ein Schlitzwandgreifer, aufgehängt ist. An einem Trägerfahrzeug 16, welches einen Unterwagen 18 und einen daran um eine vertikale Schwenkachse drehbar gelagerten Oberwagen 20 aufweist, ist ein Mast 22 gelagert. Die Tragseile sind über eine im oberen Bereich des Mastes 22 angeordnete Umlenkrolle 24 geführt und über eine Winde 28 auf- beziehungsweise abspulbar.An inventive arrangement 10 for creating a slot wall element 62 is shown in FIG Fig. 1 shown. The arrangement comprises a construction implement 12, in particular a device for creating a diaphragm wall. The construction work implement 12 has a carrier device 14, on which an ablation device 30, for example a trench wall cutter or a trench wall grab, is suspended via two cables 26 in the form of carrying ropes. On a carrier vehicle 16, which has an undercarriage 18 and a rotatably mounted about a vertical pivot axis superstructure 20, a mast 22 is mounted. The support cables are guided over a deflection roller 24 arranged in the upper region of the mast 22 and can be wound up or down by means of a winch 28.

Das an den Tragseilen aufgehängte Abtragsgerät 30, welches auch als Aushubgerät bezeichnet werden kann, umfasst in dem dargestellten Ausführungsbeispiel einen in einen Schlitz 58 im Boden 64 absenkbaren Rahmen 32, an dessen unterem Ende zumindest ein Abtragswerkzeug, insbesondere ein Fräsrad 34, angeordnet ist. Das Fräsrad 34 ist zum Abtragen von Bodenmaterial drehbar an dem Rahmen 34 gelagert.In the illustrated embodiment, the removal device 30 suspended from the suspension ropes 30, which may also be referred to as the excavation device, comprises a frame 32 which can be lowered into a slot 58 in the bottom 64, at the lower end of which at least one removal tool, in particular a cutting wheel 34, is arranged. The cutting wheel 34 is rotatably mounted on the frame 34 for removing soil material.

Zum Erstellen eines Dicht- oder Schlitzwandelementes 62 wird mittels des Abtragsgerätes 30 zunächst ein Schlitz 58 im Boden 64 erstellt. Das Abtragsgerät 30 wird hierbei im Wesentlichen vertikal abgesenkt und erstellt durch Abtragen oder Aushub von Bodenmaterial den Schlitz 58. Dieser wird nach oder während seiner Erstellung mit einem aushärtbaren Medium, insbesondere einer aushärtbaren Suspension, Beton oder Erdbeton, verfüllt, welches zu dem Dicht- oder Schlitzwandelement 62 aushärtet.To create a sealing or slot wall element 62, a slot 58 in the bottom 64 is first created by means of the removal device 30. The Abtragsgerät 30 is thereby lowered substantially vertically and created by removal or excavation of soil material, the slot 58. This is after or during its creation with a curable medium, in particular a curable suspension, concrete or earth concrete, filled, which to the sealing or Slot wall element 62 hardens.

Die Erstellung einer aus einer Mehrzahl von Dicht- oder Schlitzwandelementen 62 bestehenden Dicht- oder Schlitzwand 60 ist in Fig. 2 schematisch dargestellt. Zur Erstellung der Schlitzwand 60 werden sukzessive einzelne Schlitzwandelemente 62 erstellt, die sich jeweils überlappen, wie in Fig. 2 dargestellt.The creation of one of a plurality of sealing or slot wall elements 62 existing sealing or slot wall 60 is in Fig. 2 shown schematically. To create the slot wall 60 successive individual slot wall elements 62 are created, each overlapping, as in Fig. 2 shown.

Damit zwischen den einzelnen Schlitzwandelementen 62 der Schlitzwand 60 keine Zwischenräume entstehen und die Schlitzwand 60 dicht ist, müssen die einzelnen Schlitzwandelemente 62 präzise ausgerichtet werden. Insbesondere sind Verkippungen, Abdriften und Torsionen der Schlitzwandelemente 62 zu vermeiden.So that no gaps are created between the individual slot wall elements 62 of the slot wall 60 and the slot wall 60 is tight, the individual slot wall elements 62 must be precisely aligned. In particular, tilts, drifts and torsions of the slot wall elements 62 are to be avoided.

Durch die Verfüllung der erstellten Schlitze 58 mit dem zum jeweiligen Schlitzwandelement 62 aushärtenden Material entspricht die Form der erstellten Schlitze 58 den einzelnen Schlitzwandelementen 62 beziehungsweise der Schlitzwand 60. Die Lage der einzelnen Schlitze 58 wird wiederum durch die Lage des Abtragsgerätes 30 bestimmt. Durch Kenntnis und gegebenenfalls Korrektur der Lage des Abtragsgerätes 30 kann somit die Lage der zu erstellenden Schlitzwandelemente 62 bestimmt werden.By filling the created slots 58 with the material hardening to the respective slot wall element 62, the shape of the created slots 58 corresponds to FIG individual slot wall elements 62 and the slot wall 60. The position of the individual slots 58 is in turn determined by the position of the Abtragsgerätes 30. By knowing and optionally correcting the position of the removal device 30, the position of the slot wall elements 62 to be created can thus be determined.

Um die Lage, worunter insbesondere auch die räumliche Ausrichtung zu verstehen ist, des Abtragsgerätes 30 zu ermitteln, ist erfindungsgemäß ein Messgerät 40 vorgesehen. Bei dem Messgerät 40 handelt es sich insbesondere um ein Tachymeter, welches von einem Vermesser bedient werden kann und oberhalb einer Bodenoberfläche 66 aufgestellt ist. Mittels des Tachymeters können Seilpunkte 42, insbesondere optisch, anvisiert und deren räumliche Lage als Messwert bestimmt werden. Die Mess- oder Seilpunkte 42 befinden sich oberhalb der Bodenoberfläche 66 beziehungsweise außerhalb des Schlitzes 58.In order to determine the position, by which, in particular, the spatial orientation is to be determined by the removal device 30, a measuring device 40 is provided according to the invention. The measuring device 40 is, in particular, a tachymeter, which can be operated by a surveyor and is set up above a floor surface 66. By means of the tachymeter, cable points 42, in particular optically, can be sighted and their spatial position determined as a measured value. The measuring or cable points 42 are located above the bottom surface 66 or outside the slot 58.

Durch Bestimmung der räumlichen Lage von mindestens zwei Mess- oder Seilpunkten 42 am Seil 26 kann ein Vektor 46 des jeweiligen Seils 26 berechnet werden, in dessen Verlängerung sich ein Anlenkpunkt des Seils 26 am Abtragsgerät 30 befindet. Durch entsprechende Messung an einem zweiten Seil 26 kann ein zweiter Anlenkpunkt am Abtragsgerät 30 bestimmt werden. Durch die Kenntnis der mindesten zwei Anlenkpunkte kann nun die räumliche Lage beziehungsweise Ausrichtung des Abtragsgeräts 30 im Boden 64 ermittelt werden.By determining the spatial position of at least two measuring or cable points 42 on the cable 26, a vector 46 of the respective cable 26 can be calculated, in the extension of which a point of articulation of the cable 26 is located on the removal device 30. By appropriate measurement on a second cable 26, a second point of articulation on the removal device 30 can be determined. By knowing the at least two articulation points, the spatial position or orientation of the ablation device 30 in the bottom 64 can now be determined.

In der Regel hängt das Abtragsgerät 30 aufgrund seines hohen Gewichts senkrecht an den Anlenkpunkten der Seile 26. So kann auf die Lage des Abtragsgeräts 30 an seiner Aufstandsfläche geschlossen werden, wenn die Länge des Abtragswerkzeugs 30 zu den Messergebnissen addiert wird.As a rule, because of its high weight, the removal device 30 hangs perpendicularly at the articulation points of the cables 26. Thus, it is possible to deduce the position of the removal device 30 at its contact surface when the length of the removal tool 30 is added to the measurement results.

Zur Erhöhung der Messgenauigkeit kann an oder in dem Abtragswerkzeug 30 ein Neigungsmesser vorgesehen sein. Dieser kann dem Fahrer bei der vertikalen Abteufung des Abtragswerkzeugs 30 zur Kontrolle dienen. Zeigt der Neigungsmesser 50 einen vom Lot abweichenden Winkel des Abtragswerkzeugs 30, kann zur Bestimmung der Lage und Ausrichtung der Aufstandsfläche des Abtragswerkzeugs 30 zu den ermittelten Anlenkpunkten der Seile am Abtragswerkzeugs 30 noch ein geneigter Vektor addiert werden, dessen Länge der Länge des Abtragswerkzeugs 30 entspricht.To increase the accuracy of measurement, an inclinometer may be provided on or in the removal tool 30. This can serve as a control for the driver in the vertical lowering of the removal tool 30. If the inclinometer 50 shows an angle of the removal tool 30 deviating from the perpendicular, an inclined vector whose length corresponds to the length of the removal tool 30 can be added to determine the position and orientation of the contact surface of the removal tool 30 with the determined points of articulation of the cables on the removal tool 30.

Die Erstellung eines Schlitzwandelementes 62 umfasst insbesondere die folgenden Verfahrensschritte:

  1. 1. Positionieren des Messgerätes 40 zur Bestimmung von Winkeln und Strecken in Sichtweite auf die Seile 26 der Vorrichtung 10,
  2. 2. Abteufen des Abtragsgeräts 30 auf eine vorgegebene Tiefe,
  3. 3. Anhalten des Abtragsvorgangs,
  4. 4. Spannen der Tragseile des Abtragsgerätes 30,
  5. 5. Ermitteln der Tiefenlage des Abtragsgerätes 30, beispielsweise eines Befestigungspunktes der Tragseile am Abtragsgerät 30 oder eines unteren Endpunktes des Abtragsgerätes 30,
  6. 6. Messen von mindestens zwei Seilpunkten 42 je Seil 26 mit dem Messgerät 40,
  7. 7. Optional Bestimmen einer Neigung oder einer Schrägstellung des Abtragsgerätes,
  8. 8. Weitergeben der Messdaten von 6. oder gegebenenfalls 7. an eine Auswerteeinrichtung, beispielsweise einen Rechner oder Computer. Die Auswerteeinrichtung kann sich beispielsweise im Messgerät 40 oder am Trägergerät 14 befinden. Die unverarbeiteten oder Rohmessdaten oder die gegebenenfalls verarbeiteten Daten können an das Trägergerät übermittelt werden.
The creation of a slot wall element 62 comprises in particular the following method steps:
  1. 1. Positioning the measuring device 40 for determining angles and distances within sight of the ropes 26 of the device 10,
  2. 2. sinking the removal device 30 to a predetermined depth,
  3. 3. stopping the removal process,
  4. 4. tensioning the suspension cables of the removal device 30,
  5. 5. Determining the depth of the removal device 30, for example, an attachment point of the support cables on the removal device 30 or a lower end point of the Abtragsgerätes 30,
  6. 6. Measuring at least two cable points 42 per cable 26 with the measuring device 40,
  7. 7. Optionally determining an inclination or an inclination of the removal device,
  8. 8. Passing the measurement data from 6. or possibly 7. to an evaluation device, such as a computer or computer. The evaluation device can be located, for example, in the measuring device 40 or on the carrier device 14. The unprocessed or raw data or possibly processed data may be transmitted to the carrier.

Bei der Erstellung der Schlitzwand 60 kann das Messgerät während der Erstellung einer vorbestimmten Anzahl von Schlitzwandelementen ortsfest bleiben, während die Vorrichtung 10 schrittweise zur Erstellung weiterer Schlitzwandelemente 62 verfahren wird.When creating the slot wall 60, the meter may remain stationary during the creation of a predetermined number of slot wall elements while the device 10 is indexed to create additional slot wall elements 62.

Zur Kontrolle der Messung kann zwischen zwei Mess- beziehungsweise Seilpunkten 42 eines Seils 26, welche als Rechenwerte zur Bestimmung des Vektors 46 dienen, mindestens ein weiterer Messpunkt 42 als Kontrollmesspunkt 44 bestimmt werden. Liegen sämtliche Messpunkte 42 eines Seils auf einer geraden Linie, kann von einem insgesamt gerade verlaufenden Seil 26 ausgegangen werden.To control the measurement, at least one further measuring point 42 can be determined as the control measuring point 44 between two measuring or cable points 42 of a cable 26, which serve as calculated values for determining the vector 46. If all the measuring points 42 of a rope lie on a straight line, it can be assumed that the cable 26 runs overall straight.

An der Baustelle ist ein festes Baustellenkoordinatensystem 68 eingerichtet. Vorzugsweise ist die Position des Messgerätes 40 bezüglich des Baustellenkoordinatensystems 68 bekannt. Das Baustellenkoordinatensystem 68 weist beispielsweise mehrere Fixpunkte 70 als Bezugspunkte auf. Vorzugsweise können die Seil- beziehungsweise Messpunkte 42 an den Seilen 26 ebenfalls bezüglich des Baustellenkoordinatensystems 68 ermittelt werden. Hierdurch lässt sich auch die räumliche Position des Abtragsgeräts 30 bezüglich des Baustellenkoordinatensystems 68 berechnen.At the construction site, a fixed construction site coordinate system 68 is set up. Preferably, the position of the measuring device 40 is relative to the construction site coordinate system 68 known. The construction site coordinate system 68 has, for example, a plurality of fixed points 70 as reference points. Preferably, the cable or measuring points 42 on the cables 26 can also be determined with respect to the construction site coordinate system 68. As a result, the spatial position of the removal device 30 with respect to the construction site coordinate system 68 can also be calculated.

Fig. 3 stellt in schematischer Weise unterschiedliche Querschnittsebenen 36 eines Abtragsgeräts 30 dar, die die Lage des Abtragsgeräts 30 in unterschiedlichen Tiefen im Schlitz 58 beziehungsweise des daraus entstehenden Schlitzwandelementes 62 veranschaulichen. In der linken Darstellung ist eine ideale Führung des Abtragsgeräts 30 dargestellt, bei der die einzelnen Querschnittsebenen 36 im Wesentlichen parallel und vertikal untereinander angeordnet sind. In der rechten Darstellung ist eine der Querschnittsebenen 36 verkippt. In diesem Bereich weist der Schlitz 58 eine unerwünschte Lage auf, wodurch Undichtigkeiten in der Schlitzwand 60 entstehen können. Derartige unerwünschte Abweichungen einzelner Schlitzwandelemente 62 können mit der vorliegenden Erfindung zuverlässig und mit geringen Kosten vermieden werden. Fig. 3 schematically illustrates different cross-sectional planes 36 of a Abtragsgeräts 30 which illustrate the position of the Abtragsgeräts 30 at different depths in the slot 58 and the resulting slit wall element 62. In the left-hand illustration, an ideal guide of the removal device 30 is shown, in which the individual cross-sectional planes 36 are arranged substantially parallel and vertically with one another. In the right-hand illustration, one of the cross-sectional planes 36 is tilted. In this area, the slot 58 has an undesirable position, which can cause leaks in the slot wall 60. Such undesirable variations of individual slot wall elements 62 can be reliably and inexpensively avoided with the present invention.

Die Lage des Abtragsgeräts 30 im Schlitz kann dem Bediener des Bauarbeitsgeräts in einer Fahrerkabine auf einem Display 17 angezeigt werden. Beispielsweise kann eine absolute Lage des Abtragsgerätes 30 im Schlitz 58 bezüglich einer Null-Linie der Vertikalität dargestellt werden.The position of the removal device 30 in the slot can be displayed to the operator of the construction work device in a driver's cab on a display 17. For example, an absolute position of the ablation device 30 in the slot 58 can be represented with respect to a zero line of verticality.

Zum Einführen des Abtragsgerätes 30 in den Boden 64 kann eine Leitwand oder Bohrschablone 72 an einer vorgegebenen Position in einem oberen Bereich des Bodens 64 vorgesehen sein.For introducing the removal device 30 into the floor 64, a guide wall or drilling template 72 may be provided at a predetermined position in an upper region of the floor 64.

Claims (16)

  1. Method for producing a trench wall element (62) in the ground (64), in which a trench (58) is produced in the ground (64) through removal of ground material by means of a removal device (30) and a hardening medium is introduced into the trench (58) in order to form the trench wall element (62),
    characterized in that
    - between the removal device (30) and a carrier device (14) at least two ropes (26) are tensioned, for which the respective positions of at least two vertically spaced rope points (42) of a rope (26) are ascertained through angle and distance measurements by means of a tachymeter as measuring device (40) spaced from the carrier device (14), and
    - in that the ascertained positions of the rope points (42) are used to determine a location of the removal device (30) in the ground (64).
  2. Method according to claim 1,
    characterized in that
    at least one of the ropes (26) is a support rope, on which the removal device (30) is suspended.
  3. Method according to claim 1 or 2,
    characterized in that
    a depth location of the removal device (30) in the ground (64) is ascertained and used to determine the location of the removal device (30).
  4. Method according to any one of claims 1 to 3,
    characterized in that
    the removal process is interrupted prior to ascertaining the positions of the rope points (42).
  5. Method according to any one of claims 1 to 4,
    characterized in that
    the ropes (26) are tensioned prior to ascertaining the positions of the rope points (42).
  6. Method according to any one of claims 1 to 5,
    characterized in that
    more than two ropes (26) are provided, on which the respective positions of at least two rope points (42) are determined.
  7. Method according to any one of claims 1 to 6,
    characterized in that
    between two rope points (42) the position of at least one third rope point (42) is determined as a measurement checkpoint (44).
  8. Method according to any one of claims 1 to 7,
    characterized in that
    for angle and distance measurement a laser beam is used by means of the tachymeter as measuring device (40).
  9. Method according to any one of claims 1 to 8,
    characterized in that
    a position of the measuring device (40) and/or of the removal device (30) is determined in relation to a construction site coordinate system (68).
  10. Method according to any one of claims 1 to 9,
    characterized in that
    by means of an inclinometer (50) an inclination of the removal device (30) to the vertical is measured.
  11. Method according to any one of claims 1 to 10,
    characterized in that
    by means of an evaluation means the location of the removal device (30) is indicated and/or an instruction for a correction of location is given by making use of the data of the measuring device (40).
  12. Method according to any one of claims 1 to 11,
    characterized in that
    the location of the removal device (30) is controlled automatically with a control means by making use of the data of the measuring device (40).
  13. Arrangement for producing a trench wall element (62) in the ground (64) with
    - a carrier device (14),
    - a removal device (30) suspended on the carrier device (14) for removing ground material to produce a trench (58) in the ground (64) and
    - an introduction means for introducing a stabilizing medium into the trench (58),
    - wherein between the removal device (30) and the carrier device (14) at least two ropes (26) are tensioned,
    characterized in that
    - spaced from the carrier device (14) a tachymeter as measuring device (40) is provided, through which the respective positions of at least two vertically spaced rope points (42) can be ascertained by means of angle and distance measurements for the at least two ropes (26), and
    - in that an evaluation means is provided, with which a location of the removal device (30) in the ground (64) can be determined by making use of the data of the measuring device (40).
  14. Arrangement according to claim 13,
    characterized in that
    the measuring device (40) is arranged on the ground surface in a spaced manner from the carrier device (14).
  15. Arrangement according to claim 13 or 14,
    characterized in that
    an indication means is provided which indicates the location of the removal device (30) by making use of the data of the measuring device (40).
  16. Arrangement according to any one of claims 13 to 15,
    characterized in that
    a control means is provided for automatically controlling the removal device (30) by making use of the data of the measuring device (40).
EP12000598.8A 2012-01-31 2012-01-31 Assembly and method for manufacturing a slotted wall element Active EP2623677B1 (en)

Priority Applications (11)

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PL12000598T PL2623677T3 (en) 2012-01-31 2012-01-31 Assembly and method for manufacturing a slotted wall element
EP12000598.8A EP2623677B1 (en) 2012-01-31 2012-01-31 Assembly and method for manufacturing a slotted wall element
HUE12000598A HUE024532T2 (en) 2012-01-31 2012-01-31 Assembly and method for manufacturing a slotted wall element
ES12000598.8T ES2533573T3 (en) 2012-01-31 2012-01-31 Procedure and arrangement for the preparation of a screen wall element
US13/608,972 US8864422B2 (en) 2012-01-31 2012-09-10 Method and arrangement for producing a trench wall element
CA2795681A CA2795681C (en) 2012-01-31 2012-11-15 Method and arrangement for producing a trench wall element
RU2012149608/03A RU2528329C2 (en) 2012-01-31 2012-11-22 Method and plant to erect element of trench wall
MYPI2012005328A MY168673A (en) 2012-01-31 2012-12-10 Assembly and method for manufacturing a slotted wall element
JP2013014346A JP5642813B2 (en) 2012-01-31 2013-01-29 Method and apparatus for manufacturing trench wall elements
KR1020130010902A KR101459063B1 (en) 2012-01-31 2013-01-31 Method and arrangement for producing a trench wall element
HK13109465.2A HK1182151A1 (en) 2012-01-31 2013-08-13 Assembly and method for manufacturing a slotted wall element

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EP (1) EP2623677B1 (en)
JP (1) JP5642813B2 (en)
KR (1) KR101459063B1 (en)
CA (1) CA2795681C (en)
ES (1) ES2533573T3 (en)
HK (1) HK1182151A1 (en)
HU (1) HUE024532T2 (en)
MY (1) MY168673A (en)
PL (1) PL2623677T3 (en)
RU (1) RU2528329C2 (en)

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US8864422B2 (en) 2014-10-21
US20130223939A1 (en) 2013-08-29
KR20130088805A (en) 2013-08-08
RU2528329C2 (en) 2014-09-10
MY168673A (en) 2018-11-29
CA2795681C (en) 2015-03-24
ES2533573T3 (en) 2015-04-13
KR101459063B1 (en) 2014-11-07
JP2013155598A (en) 2013-08-15
JP5642813B2 (en) 2014-12-17
RU2012149608A (en) 2014-05-27
PL2623677T3 (en) 2015-04-30
CA2795681A1 (en) 2013-07-31
EP2623677A1 (en) 2013-08-07
HUE024532T2 (en) 2016-01-28

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