EP4279659A1 - Appareil d'excavation de tranchées pour parois moulées et procédé d'excavation d'une paroi moulée dans le sol - Google Patents

Appareil d'excavation de tranchées pour parois moulées et procédé d'excavation d'une paroi moulée dans le sol Download PDF

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Publication number
EP4279659A1
EP4279659A1 EP22174149.9A EP22174149A EP4279659A1 EP 4279659 A1 EP4279659 A1 EP 4279659A1 EP 22174149 A EP22174149 A EP 22174149A EP 4279659 A1 EP4279659 A1 EP 4279659A1
Authority
EP
European Patent Office
Prior art keywords
base frame
clamping
diaphragm wall
intermediate frame
frame
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.)
Pending
Application number
EP22174149.9A
Other languages
German (de)
English (en)
Inventor
Leonhard Weixler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bauer Maschinen GmbH
Original Assignee
Bauer Maschinen GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bauer Maschinen GmbH filed Critical Bauer Maschinen GmbH
Priority to EP22174149.9A priority Critical patent/EP4279659A1/fr
Priority to PCT/EP2023/061267 priority patent/WO2023222363A1/fr
Publication of EP4279659A1 publication Critical patent/EP4279659A1/fr
Pending legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/18—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels
    • E02F3/20—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels with tools that only loosen the material, i.e. mill-type wheels
    • E02F3/205—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels with tools that only loosen the material, i.e. mill-type wheels with a pair of digging wheels, e.g. slotting machines
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00—Excavations; Bordering of excavations; Making embankments
    • E02D17/13—Foundation slots or slits; Implements for making these slots or slits
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/46—Dredgers; Soil-shifting machines mechanically-driven with reciprocating digging or scraping elements moved by cables or hoisting ropes ; Drives or control devices therefor
    • E02F3/47—Dredgers; Soil-shifting machines mechanically-driven with reciprocating digging or scraping elements moved by cables or hoisting ropes ; Drives or control devices therefor with grab buckets
    • E02F3/475—Dredgers; Soil-shifting machines mechanically-driven with reciprocating digging or scraping elements moved by cables or hoisting ropes ; Drives or control devices therefor with grab buckets for making foundation slots
    • 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
    • E02F3/46—Dredgers; Soil-shifting machines mechanically-driven with reciprocating digging or scraping elements moved by cables or hoisting ropes ; Drives or control devices therefor
    • E02F3/58—Component parts

Definitions

  • the invention relates to a diaphragm wall device for creating a slot in the ground, with a base frame which extends in a longitudinal direction, at least one soil removal device which is arranged at a lower end region of the base frame, a holding device at an upper end region of the diaphragm wall device, a bracing device with at least two opposite and laterally movable clamping elements transversely to the longitudinal direction and at least one adjusting element through which the clamping elements can be extended laterally in the slot for clamping at least part of the diaphragm wall device, an intermediate frame which is mounted displaceably along the base frame in a lower region of the base frame and on in which the clamping device is arranged with the at least two clamping elements and the at least one adjusting element, and a pressure device through which a pressure force can be applied to the at least one soil removal device, the pressure device being arranged between the intermediate frame and the base frame, according to the preamble of claim 1 .
  • the invention further relates to a method for creating a slot in the ground with such a slot wall device according to the preamble of claim 14.
  • trench wall devices are known in particular as so-called trench wall cutters with cutting wheels as soil removal devices. These are usually suspended from a carrier device via a support cable. At the top of the base frame A holding device for a support cable, a support rod or the like is arranged. With such devices, the maximum pressure force on the ground is limited by the weight of the diaphragm wall device.
  • a trench wall milling machine in which longitudinally and transversely movable clamping plates are provided on a milling frame, which form a unit together with transversely directed clamping cylinders.
  • the clamping cylinders are each supported on the opposing clamping plates.
  • the unit formed from clamping plates and clamping cylinders is mounted so that it can move in the transverse direction relative to a base frame of the milling machine, so that overall the unit is mounted in a floating manner.
  • this floating bearing prevents a position of the base frame suspended on a support cable from shifting.
  • an arrangement of vertically directed pressure cylinders is provided below the unit with the clamping plates.
  • the EP 0 593 355 A1 teaches a similar floating storage of tension plates in a transverse direction.
  • the clamping plates are arranged on a common piston and can therefore be moved together in the transverse direction.
  • a trench wall cutter with a base frame and a lower vertically movable tool carrier part with the cutting wheels is from the EP 0 811 724 B1 known.
  • the base frame which is held on a support cable, can be clamped in the milling slot using transverse clamping elements, while the milling wheels can be moved downwards.
  • a trench wall cutter is known in which transversely directed adjusting elements are also supported on the one hand on a first clamping plate and on the other hand on a second opposite clamping plate.
  • additional clamping cylinders directed obliquely downwards are provided, with which the individual clamping plates can be additionally clamped relative to an intermediate frame.
  • the intermediate frame is guided on a base frame of the milling machine so that it can be moved in the direction of advance.
  • a tensile force can be applied to the milling wheels via upper obliquely directed pressure cylinders to apply additional propulsive force.
  • a holding device for a support cable is attached to the base frame.
  • the invention is based on the object of specifying a diaphragm wall device and a method with which a slot can be created efficiently in the ground with a compact structure of the diaphragm wall device.
  • the trench wall device according to the invention is characterized in that the holding device is firmly connected to the intermediate frame and that the base frame with the soil removal device can be displaced relative to the holding device.
  • a first aspect of the invention is to attach the holding device for holding the slot belt device not directly to the base frame with the soil removal device, but to the intermediate frame with the bracing device.
  • the base frame with the soil removal device is therefore displaceable in the direction of advance not only relative to the intermediate frame with the bracing device, but also relative to the holding device.
  • This can be used to advance the Soil removal device, in particular of milling wheels, can be effected on the base frame without the holding device having to be adjusted.
  • the holding device is intended for connection in particular to a support cable or a support rod on a carrier device. It is therefore possible to move the soil removal device without having to adjust a support cable or the support rod on the carrier device. This simplifies the control of the feed movement and a desired pressure force. This can now be done in particular by controlling the pressure device alone.
  • the intermediate frame with the bracing device is arranged in a lower region of the diaphragm wall device. This means that even with a relatively small pre-lift, the diaphragm wall device can be braced against the walls of a previously formed guide slot. After bracing by the bracing device, the base frame is guided on the intermediate frame in a substantially vertical direction and a desired pressure force can be applied to the soil removal device at an early stage.
  • the holding device is firmly connected to the intermediate frame via one or more longitudinal beams which extend along the base frame.
  • a single longitudinal beam can be sufficient, via which the intermediate frame arranged in a lower area is firmly connected to the holding device at the upper area of the diaphragm wall device.
  • two or more, in particular four, longitudinal beams are preferably arranged along the outer sides of the base frame.
  • the longitudinal beams can each be designed in particular as double-T beams.
  • Corresponding trough-shaped recesses are preferably provided along the base frame for the longitudinal beams, so that they do not protrude beyond the outer dimensions of the base frame.
  • a particularly robust design of the diaphragm wall device is achieved in that the holding device is attached to a cross member, which is arranged in an upper region of the base frame.
  • the holding device which can be a connecting element or a coupling element for attaching a support cable or support rod, can be centrally and/or along a longitudinal axis of the Diaphragm wall device can be positioned. With this central arrangement, a good connection to external longitudinal beams can be achieved via the at least one cross member.
  • a further preferred embodiment of the invention is that the bracing device has at least two adjusting elements arranged perpendicular to the longitudinal direction, with at least a first adjusting element being mounted on the one hand on the intermediate frame and on the other hand on a first clamping element and at least one second adjusting element being mounted on the one hand on the intermediate frame and on the other hand a second clamping element is mounted, which is arranged opposite the first clamping element and that the first adjusting elements and the second adjusting elements can be extended perpendicular to the longitudinal direction.
  • Each plate-shaped clamping element can be assigned at least one own adjusting element, in particular a clamping cylinder, which is supported on the one hand on the respective clamping element and on the other hand on the intermediate frame.
  • the adjusting elements are directed transversely to the longitudinal or advancing direction of the diaphragm wall device.
  • the individual clamping elements can be individually adjusted relative to the intermediate frame.
  • a clear separation between the transverse forces and the longitudinal forces for pressing the diaphragm wall device is achieved, which overall contributes to a compact structure and efficient operation.
  • opposing clamping elements can also be attached to a common holder or an adjusting device, with the holder being mounted on the base frame so that it can float in a transverse and/or longitudinal direction.
  • a compact structure is promoted in that the intermediate frame is slidably mounted on the base frame at a bearing section which has a reduced cross-section compared to the base frame, forming at least one free space, and that at least one receptacle is provided on the displaceable intermediate frame Receiving at least part of the adjusting element is designed, the receptacle being arranged in the free space formed.
  • actuating elements which are actuators or linear drives, in particular clamping cylinders, preferably hydraulic cylinders.
  • two lateral free spaces are formed on the bearing section and that two receptacles for adjusting elements are formed on the intermediate frame.
  • the adjusting elements for the opposing clamping elements can thus be arranged in the two side receptacles. At least one first adjusting element and at least one second adjusting element are provided in each side receptacle for the opposing clamping elements.
  • the receptacle can preferably be open and only have a base plate on which the respective adjusting element is attached and supported. Opposite adjusting elements can support each other on the same base plate, with the transverse forces on the base plate largely compensating for each other.
  • the at least one receptacle on the intermediate frame is box-like and has at least one first adjusting element and at least one second adjusting element.
  • the box-like receptacle has side walls which face the respective plate-shaped clamping elements, the side walls each having at least one passage for at least one of the adjusting elements and at least one support area for attaching the adjusting element directed towards the opposite clamping element.
  • a plurality of first adjusting elements and a plurality of second adjusting elements are arranged in a receptacle of the intermediate frame.
  • two first adjusting elements and two second adjusting elements are arranged in each receptacle, each of which is directed in opposite directions transversely to the longitudinal direction.
  • a control is provided, through which the first actuating elements and the second actuating elements can be extended in a defined manner.
  • the adjusting elements can be extended evenly so that the individual clamping elements come to lie on the surrounding walls of the slot at the same time as possible, so that no change in the position of the base frame of the slot wall device in the slot is caused.
  • control is designed to initially extend the at least one first actuating element and the at least one second actuating element with a first low pressure force until the clamping elements rest on the surrounding floor, and then to apply a high pressure force to exert tension.
  • the high clamping force required for bracing is only caused by the control device when no further extension movement is detected on the actuating elements during the first adjustment force. This can be seen as an indication that the respective clamping elements have come into contact with the adjacent wall when extended into a clamping position.
  • control device is connected to sensors through which a pressure force and/or an extended position of the actuating elements can be detected.
  • the pressure force can be recorded on the individual control elements or centrally for groups of control elements or for all control elements as a whole.
  • a further preferred embodiment of the invention is that the pressure device is arranged above the clamping device and has at least one, preferably several pressure cylinders.
  • the bracing device can be arranged very close to the soil removal device. This allows the diaphragm wall device to be braced very early in the slot formed, so that additional pressure forces can be applied to the soil removal device at an early stage of a foundation process.
  • the pressure cylinder or cylinders are designed in such a way that they exert a tensile force on the base frame in order to apply the pressure force. By contracting the at least one pressure cylinder, the base frame and thus the soil removal device can be pulled downwards with a desired force.
  • each pressure cylinder is attached to the base frame on the one hand and to the intermediate frame or a clamping element on the other hand. This allows an immediate flow of force when pressing between the longitudinal movable base frame and the fixed intermediate frame or the respective clamping element.
  • the at least one pressure cylinder can be arranged parallel to the longitudinal direction of the diaphragm wall device.
  • a particularly compact arrangement results from the fact that the pressure cylinders are arranged at an angle to the vertical, with the base frame with the soil removal device being able to be pressed downwards relative to the braced intermediate frame by actuating the pressure cylinders.
  • a particularly useful embodiment of the invention lies in the fact that the trench wall device is designed as a trench wall cutter, with the soil removal device having at least one cutting wheel.
  • the soil removal device having at least one cutting wheel.
  • two pairs of driven milling wheels with mutually parallel milling wheel axes are arranged at the lower end of the base frame as a soil removal device.
  • An alternative embodiment of the invention is a diaphragm wall device which is designed as a diaphragm wall grab, with the soil removal device having gripper blades.
  • a particularly high removal rate can be achieved by the bracing device designed according to the invention, particularly when inserting and closing the grab blades in the ground.
  • the invention further comprises a method for creating a slot in the ground with the previously described diaphragm wall device according to the invention, the method being characterized in that the diaphragm wall device is held at an upper end region by means of a holding device, and by means of at least one soil removal device which is at a lower end region of the base frame is arranged, the floor is removed to form the slot, that by means of a clamping device at least two opposing clamping elements are extended laterally by at least two adjusting elements directed perpendicular to the longitudinal direction, at least a part of the slot wall device being clamped in the slot, that a pressure force is applied by means of a pressure device is applied to the at least one soil removal device, that the clamping device with the at least two clamping elements and the adjusting elements is arranged on an intermediate frame to which the holding device is attached and the Base frame is mounted displaceably relative to the intermediate frame and the holding device, that the intermediate frame is braced by the bracing device and fixed relative to the ground, and that the base frame
  • a diaphragm wall device 10 according to the invention with an elongated base frame 12 is in Fig. 1 to 3 shown.
  • the base frame 12 which is preferably scaffold-like and rectangular in cross section, can have a tapered one at its lower end region Bearing section 16, which is also designed with a basically rectangular cross section. Compared to the cross section of the base frame 12, one long side can be shortened in such a way that two lateral free spaces 17 are formed.
  • the soil removal device 20 for removing soil material can be arranged on an underside of the storage section 16.
  • the soil removal device 20 is formed, for example, by four cutting wheels 22, two of which form a pair of cutting wheels with a common cutting wheel axis.
  • the milling wheels 22 of a pair of milling wheels are each rotatably mounted and driven on a central bearing plate in a generally known manner.
  • a suction box 18 can also be arranged in a generally known manner, which serves to suck off milled ground material.
  • the central suction line along the base frame 12 is not shown in more detail for reasons of clarity.
  • an intermediate frame 60 with a clamping device 50 is mounted in a longitudinally displaceable manner.
  • the intermediate frame 60 can have two front panels 62, which can be connected to one another via two outer side panels 64 and two inner side panels 66, so that the box-like intermediate frame 60 encloses the rectangular bearing section 16 in a ring-like manner and is slidably mounted on it in the longitudinal direction.
  • an outer side plate 64 and an inner side plate can be arranged at a distance from one another, with a box-like receptacle 70 being able to be formed between them.
  • the two side receptacles 70 are located in the two free spaces 17, which are formed by the taper of the bearing section 16 relative to the base frame 12.
  • two forward-facing first adjusting elements and two rear-facing second adjusting elements can be arranged in the receptacles 70, which are designed in particular as hydraulic cylinders.
  • lateral plate-shaped clamping elements 52 can be extended and retracted laterally in order to clamp the diaphragm wall device 10 in the milling slot.
  • Each pressure cylinder 32 is articulated with its cylinder housing on a bearing block 36, which is attached to the base frame 12.
  • the piston rod of each pressure cylinder 32 is connected to the associated plate-shaped clamping element 52 via a pivot pin connection 38.
  • the pressure cylinders 32 can be used to shift the base frame 12 relative to the intermediate frame 60.
  • the milling wheels 22 can be moved from an upwardly retracted position, which is in the Figures 1 to 3 is shown in a lower position according to Fig. 4 are moved, in which the milling wheels 22 protrude downwards relative to the intermediate frame 60 with the clamping device 50.
  • the pressure cylinders 32 can be retracted, for example Fig. 4 emerges.
  • a holding device 14 is arranged in an upper area, with which the diaphragm wall device 10 can be attached to a support cable or a support rod.
  • the holding device 14, which in Fig. 5 is shown in more detail, can have a shaft 15 and is mounted in the longitudinal direction via a sleeve-shaped linear guide 13 on the base frame 12 to be displaceable to the base frame 12 and attached to a cross member 42.
  • the cross member 42 is firmly connected to the intermediate frame 60 with the bracing device 50 via one or more longitudinal members 40. Consequently, the slot wall device 10 is held via the holding device 14 and the intermediate frame 60, the base frame 12 being freely displaceable relative to the holding device 14 in the longitudinal direction with the pressure cylinders 32.
  • guide plates 11 can be attached to the outside of the base frame 12. The guide plates 11 can be controlled and moved in order to align the trench wall cutter 10 in the cutting slot.
  • Fig. 6 is a lower region of the diaphragm wall device 10 according to the invention in a state corresponding to Figures 1 to 3 shown, in which the plate-shaped clamping elements 52 of the clamping device 50 can be retracted, so that the diaphragm wall device 10 can be moved freely in a slot in the ground.
  • the pressure cylinders 32 of the pressure device 30 are extended, with the intermediate frame 60 being moved to a lower end of the bearing section 16.
  • the clamping device 50 is activated.
  • the unrecognizable actuating elements arranged in the receptacles 70 preferably transversely directed hydraulic cylinders, are extended, with the plate-shaped clamping elements 52 being pressed against surrounding floor walls.
  • the pressure device 30 can be activated, as in Fig. 7 is shown.
  • the pressure cylinders 32 are retracted, and due to the fixation of the intermediate frame 60 by the extended clamping elements 52, the base frame 12 together with the bearing section 16 and the soil removal device 20 are pressed downwards by the tensile movement generated by the pressure cylinders 32.
  • an additional downward force can be applied to the soil removal device 20 by the pressure cylinders 32. This can be advantageous when milling hard ground, especially rock material.
  • the weight of the diaphragm wall device 10 can be absorbed in whole or in part by the bracing device 50 and dissipated into the surrounding ground. This can be an advantage on soft floors, e.g. B. the soil is compacted too much due to excessive downward force, which can make removal more difficult.
  • the intermediate frame 60 with the bracing device 50 can be held on a support cable 5 of a carrier unit 1 via the longitudinal beams 40 and the holding device 14, as in Fig. 8 is shown.
  • the carrier unit 1 can be a mobile crane with a boom arm.
  • the carrier unit 1 can be used for hose lines and feeds Necessary liquids are supplied and removed and energy is supplied.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
EP22174149.9A 2022-05-18 2022-05-18 Appareil d'excavation de tranchées pour parois moulées et procédé d'excavation d'une paroi moulée dans le sol Pending EP4279659A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP22174149.9A EP4279659A1 (fr) 2022-05-18 2022-05-18 Appareil d'excavation de tranchées pour parois moulées et procédé d'excavation d'une paroi moulée dans le sol
PCT/EP2023/061267 WO2023222363A1 (fr) 2022-05-18 2023-04-28 Dispositif de coupe de tranchée et procédé de réalisation d'une tranchée dans le sol

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP22174149.9A EP4279659A1 (fr) 2022-05-18 2022-05-18 Appareil d'excavation de tranchées pour parois moulées et procédé d'excavation d'une paroi moulée dans le sol

Publications (1)

Publication Number Publication Date
EP4279659A1 true EP4279659A1 (fr) 2023-11-22

Family

ID=82058479

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22174149.9A Pending EP4279659A1 (fr) 2022-05-18 2022-05-18 Appareil d'excavation de tranchées pour parois moulées et procédé d'excavation d'une paroi moulée dans le sol

Country Status (2)

Country Link
EP (1) EP4279659A1 (fr)
WO (1) WO2023222363A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3805868A1 (de) * 1988-02-25 1989-09-07 Hochtief Ag Hoch Tiefbauten Seilgefuehrter schlitzwandgreifer
EP0593355A1 (fr) 1992-10-12 1994-04-20 Compagnie Du Sol Appareil pour creuser dans le sol des tranchées de grande profondeur à l'aide de tambours de fraisage
EP0811724B1 (fr) 1996-06-04 2004-04-21 Compagnie Du Sol Appareil à châssis télescopique pour creuser des tranchées dans le sol
EP2378002A1 (fr) * 2010-04-16 2011-10-19 BAUER Maschinen GmbH Dispositif de pelousage pour établir une fente s'étendant verticalement dans le sol
WO2017042500A1 (fr) * 2015-09-10 2017-03-16 Soletanche Freyssinet Machine de forage
EP3347526A2 (fr) 2015-09-10 2018-07-18 Soletanche Freyssinet Machine de forage
EP3401444B1 (fr) 2017-05-11 2019-11-27 BAUER Maschinen GmbH Dispositif d'excavation de tranchée et procédé de fabrication de tranchées dans le sol

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3805868A1 (de) * 1988-02-25 1989-09-07 Hochtief Ag Hoch Tiefbauten Seilgefuehrter schlitzwandgreifer
EP0593355A1 (fr) 1992-10-12 1994-04-20 Compagnie Du Sol Appareil pour creuser dans le sol des tranchées de grande profondeur à l'aide de tambours de fraisage
EP0811724B1 (fr) 1996-06-04 2004-04-21 Compagnie Du Sol Appareil à châssis télescopique pour creuser des tranchées dans le sol
EP2378002A1 (fr) * 2010-04-16 2011-10-19 BAUER Maschinen GmbH Dispositif de pelousage pour établir une fente s'étendant verticalement dans le sol
WO2017042500A1 (fr) * 2015-09-10 2017-03-16 Soletanche Freyssinet Machine de forage
EP3347526A2 (fr) 2015-09-10 2018-07-18 Soletanche Freyssinet Machine de forage
EP3401444B1 (fr) 2017-05-11 2019-11-27 BAUER Maschinen GmbH Dispositif d'excavation de tranchée et procédé de fabrication de tranchées dans le sol

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Publication number Publication date
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