EP4112816A1 - 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
EP4112816A1
EP4112816A1 EP21183267.0A EP21183267A EP4112816A1 EP 4112816 A1 EP4112816 A1 EP 4112816A1 EP 21183267 A EP21183267 A EP 21183267A EP 4112816 A1 EP4112816 A1 EP 4112816A1
Authority
EP
European Patent Office
Prior art keywords
elements
clamping
base frame
intermediate frame
trench
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP21183267.0A
Other languages
German (de)
English (en)
Other versions
EP4112816B1 (fr
EP4112816C0 (fr
Inventor
Daniel FLIERL
Leonhard Weixler
Ludwig Andreas Huber
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 EP21183267.0A priority Critical patent/EP4112816B1/fr
Priority to PCT/EP2022/066111 priority patent/WO2023274711A1/fr
Priority to KR1020237041816A priority patent/KR20240004950A/ko
Priority to CN202280035597.6A priority patent/CN117321269A/zh
Publication of EP4112816A1 publication Critical patent/EP4112816A1/fr
Application granted granted Critical
Publication of EP4112816B1 publication Critical patent/EP4112816B1/fr
Publication of EP4112816C0 publication Critical patent/EP4112816C0/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00—Excavations; Bordering of excavations; Making embankments
    • E02D17/13—Foundation slots or slits; Implements for making these slots or slits
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/18—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels
    • E02F3/20—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels with tools that only loosen the material, i.e. mill-type wheels
    • E02F3/205—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels with tools that only loosen the material, i.e. mill-type wheels with a pair of digging wheels, e.g. slotting machines
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • 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

Definitions

  • the invention relates to a trench wall device for creating a trench in the ground, with a base frame which extends in a longitudinal direction, at least one soil removal device which is arranged on a lower end area of the base frame, a holding device on an upper end area of the base frame, a bracing device with at least two opposing clamping elements that can be moved laterally, transversely to the longitudinal direction, and at least one adjusting element, through which the clamping elements can be extended laterally in order to clamp at least part of the trench wall device in the trench, an intermediate frame, which is mounted so that it can slide along the base frame and on which the clamping device with the at least two clamping elements and the at least one actuating element is arranged, and a pressure device, through which a pressure force can be applied to the at least one soil removal device, the pressure device between hen the intermediate frame and the base frame is arranged, according to the preamble of claim 1.
  • the invention further relates to a method for creating a trench in the ground with such a trench wall device according to the preamble of claim 14.
  • Such diaphragm wall devices are known in particular as so-called diaphragm wall cutters with cutting wheels as soil removal devices. These are usually suspended from a carrier device via a suspension cable. With such devices, the maximum pressure force on the ground is limited by the weight of the diaphragm wall device.
  • a trench wall cutter in which longitudinally and transversely displaceable clamping plates are provided on a cutter frame, which together with transverse clamping cylinders form a unit.
  • the clamping cylinders are each supported on the opposite clamping plates.
  • the unit formed from clamping plates and clamping cylinders is mounted such that it can move in the transverse direction relative to a base frame of the milling machine, so that the unit is mounted in a floating manner overall.
  • This floating bearing prevents a position of the base frame from shifting.
  • An arrangement of vertically directed pressure cylinders is provided below the unit with the clamping plates in order to increase the pressing force on the cutting wheels.
  • 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 also be clamped in relation to an intermediate frame.
  • the intermediate frame can be moved in the direction of advance on a base frame of the tiller.
  • a tensile force can be applied to the cutting wheels via the upper, inclined pressure cylinders in order to apply an additional propulsive force.
  • the invention is based on the object of specifying a trench wall device and a method with which a trench in the ground can be efficiently created with a compact construction of the trench wall device.
  • the diaphragm wall device is characterized in that the bracing device has at least two adjusting elements arranged perpendicularly to the longitudinal direction, with at least a first adjusting element being mounted on the intermediate frame on the one hand and on a first tensioning element on the other hand, and at least a second adjusting element on the intermediate frame on the one hand and on a second one on the other Clamping element is mounted, which is arranged opposite to the first clamping element and that the first adjusting elements and the second adjusting elements are extendable perpendicularly to the longitudinal direction.
  • a first aspect of the invention can be seen in assigning each plate-shaped clamping element at least one separate 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 driving direction of the diaphragm wall device.
  • the individual clamping elements can be adjusted individually in relation to the intermediate frame.
  • a clear separation between the lateral forces and the longitudinal forces for pressing the diaphragm wall device is achieved, which contributes to a compact structure and efficient operation.
  • a compact structure is promoted in that the intermediate frame is slidably mounted on the base frame on a bearing section which has a reduced cross-section compared to the base frame, forming at least one free space, and that on the displaceable intermediate frame is formed at least one receptacle for receiving at least a part of the actuating element, wherein the receptacle is arranged in the free space formed.
  • adjusting elements which are actuators or linear drives, in particular clamping cylinders, preferably hydraulic cylinders.
  • the adjusting elements for the opposing clamping elements can be arranged in the two lateral recordings. At least one first adjusting element and at least one second adjusting element for the respectively opposite clamping elements is provided in each lateral receptacle.
  • the receptacle can preferably be open and only have a base plate on which the respective actuating element is fastened and is supported. Opposite actuating elements can support one another on the same base plate, with the transverse forces on the base plate being largely compensated for.
  • the at least one receptacle on the intermediate frame has a box-like design 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 actuating elements and a plurality of second actuating elements are arranged in a receptacle in the intermediate frame.
  • two first adjusting elements and two second adjusting elements are arranged in each receptacle, which are each directed in opposite directions transverse to the longitudinal direction.
  • a controller is provided, by means of which the first adjusting elements and the second adjusting elements can be extended in a defined manner.
  • the adjusting elements can be extended evenly so that the individual clamping elements come to rest on the surrounding walls of the trench as simultaneously as possible, so that the position of the base frame of the trench wall device in the trench is not changed.
  • the controller is designed to extend the at least one first actuating element and the at least one second actuating element initially with a first low pressure force until the tensioning elements are in contact with the surrounding soil, and then a high pressure force for to exert tension.
  • the high clamping force required for clamping is only initiated by the control device in particular when no more extension movement is detected at the actuating elements with the first adjusting force. This can be interpreted as an indication that the respective clamping elements have come to rest on the respective adjoining wall when extended into a clamping position.
  • control device is connected to sensors, by means of which a pressing force and/or an extended position of the actuating elements can be detected.
  • the pressing 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 consists in the fact that the pressure device is arranged above the bracing 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 formed slot, so that additional pressure forces can be applied to the soil excavation device in an early phase 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 thus be pulled down with a desired force.
  • each pressure cylinder is attached on the one hand to the base frame and on the other hand to the intermediate frame or a clamping element. This allows a direct flow of force when pressing between the longitudinally displaceable 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 trench wall device.
  • a particularly compact arrangement is obtained according to one embodiment of the invention in that the pressure cylinders are arranged inclined to the vertical, whereby the base frame with the soil removal device can be pressed down relative to the braced intermediate frame by actuating the pressure cylinders.
  • a particularly expedient 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.
  • Two pairs of driven cutting wheels with cutting wheel axes parallel to one another are preferably arranged at the lower end of the base frame as a soil removal device.
  • An alternative embodiment of the invention is a trench wall device that is designed as a trench wall grab, with the soil removal device having grab shovels.
  • a particularly high removal rate can be achieved by the bracing device designed according to the invention, in particular when pushing in and closing the grab shovels in the ground.
  • the invention also includes a method for creating a trench in the ground with the trench wall device according to the invention described above, the method being characterized in that a base frame of the trench wall device is held at an upper end region by means of a holding device, that by means of at least one soil removal device which is attached to a lower end portion of the base frame is arranged, is removed under formation of the slot soil that by means of a bracing device at least two opposite clamping elements are extended laterally by at least two adjusting elements directed perpendicularly to the longitudinal direction, with at least part of the trench wall device being braced in the slot, that a pressing force is applied to the at least one soil removal device by means of a pressure device, that the clamping device with the at least two clamping elements and the adjusting elements an intermediate frame is arranged, which is mounted displaceably along the base frame, that the intermediate frame is braced and fixed relative to the ground by the bracing device, and that the base frame with the soil removal device is pressed down by means of the pressure device.
  • An elongate base frame 12 for a trench wall device 10 according to the invention is 1 shown.
  • the framework-like base frame 12, which is rectangular in cross-section, has a tapered bearing section 16 at its lower end region, which is also designed with a basically rectangular cross-section. Compared to the cross section of the base frame 12, one long side is shortened in such a way that two lateral free spaces 17 are formed.
  • the soil removal device 20 for removing soil material is arranged on an underside of the storage section 16 .
  • the soil removal device 20 is formed by four cutting wheels 22, two of which each form a cutting wheel pair with a common cutting wheel axis.
  • the cutting wheels 22 of a pair of cutting wheels are rotatably mounted and driven in a basically known manner on a central bearing plate.
  • a suction box 18 is arranged between the two pairs of cutting wheels 22 in a manner that is also known in principle and is used for sucking off the ground material that has been cut off.
  • the central suction line along the base frame is not shown for reasons of clarity.
  • the intermediate frame 60 has two front panels 62 which are 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 thereon in the longitudinal direction.
  • An outer side plate 64 and an inner side plate 66 are arranged at a distance from one another on two short sides of the intermediate frame 60, with a box-like receptacle 70 being formed in between.
  • the two lateral receptacles 70 are located in the two free spaces 17, which are created by the narrowing of the Bearing section 16 relative to the base frame 12 are formed.
  • two forward-facing first adjusting elements 54a and two rearward-facing second adjusting elements 54b are arranged in the receptacles 70, as will be explained in more detail later.
  • the trench wall device 10 according to the invention is shown in a further expansion stage, with two plate-shaped first clamping elements 52a and two plate-shaped second clamping elements 52b being attached to the first adjusting elements 54a and the second adjusting elements 54b.
  • the respectively assigned clamping elements 52 can be separately extended and retracted perpendicularly to the longitudinal direction of the diaphragm wall device 10.
  • a total of four pressure cylinders 32 are provided to form the pressure device 30 .
  • Two pressure cylinders 32 are arranged on a front side and two pressure cylinders 32 on a rear side of the base frame 12 .
  • Each pressure cylinder 32 is articulated with its cylinder housing to a bearing block 36 which is fastened to the base frame 12 .
  • the piston rod of each pressure cylinder 32 is connected to the respectively associated plate-shaped clamping element 52 via a pivot pin connection 38 .
  • the structure of the bracing device 50 is shown in 6 shown in more detail.
  • the bracing device 50 is attached to the intermediate frame 60, which is mounted on the bearing section 16 in a displaceable manner along guide rails 19 running in the longitudinal direction.
  • the lateral socket 70 on the intermediate frame 60 has a central and longitudinally extending base plate 68 which divides the space of the socket 70 into two halves.
  • the two first adjusting elements 54a to which the plate-shaped first clamping element 52 is fastened, are arranged in the left half, which is directed towards the front.
  • the two second adjusting elements 54b which carry the plate-shaped second clamping element 52b, are arranged in the right half of the receptacle 70, which is directed towards the rear.
  • the first adjusting elements 54a are attached to one side of the base plate 68, while the opposite second adjusting elements 54b are attached to the opposite side of the base plate 68 and supported.
  • Projecting inserts 56 are attached to the outside of the plate-shaped clamping elements 52 in order to achieve improved engagement and retention of the plate-shaped clamping elements 52 on the surrounding floor walls during clamping.
  • a piston of the associated pressure cylinder 32 is attached to the upper side of each plate-shaped clamping element 52 via a bearing eye and a pivot pin connection 38 .
  • the trench wall device 10 is shown in a state in which the plate-shaped clamping elements 52 of the bracing device 50 are retracted, so that the trench wall device 10 can be moved freely in a trench in the ground.
  • the pressure cylinders 32 of the pressure device 30 are extended, the intermediate frame 60 being moved to a lower end of the bearing section 16 .
  • the bracing device 50 is activated to brace the diaphragm wall device 10 in a slit in the ground.
  • the adjusting elements 54 are extended, the plate-shaped clamping elements 52 being pressed against the surrounding floor walls.
  • the pressing device 30 can be activated, as in FIG 9 is shown.
  • the pressure cylinders 32 are retracted, the base frame 12 together with the bearing section 16 and the soil removal device 20 being pressed down due to the fixing of the intermediate frame 60 by the extended clamping elements 52 by the pulling movement of the pressure cylinders 32 generated.
  • an additional downward force can be applied to the soil removal device 20 by the pressure cylinder 32. This can be advantageous when milling hard ground, especially rock material.
  • the soil removal device 20 can also be relieved, for example if the weight of the trench wall device 10 is too high for a removal process and the removal teeth could be damaged.
  • the weight of the diaphragm wall device 10 is wholly or partly absorbed by a support cable. Part of the weight of the diaphragm wall device 10 can also be diverted into the surrounding soil via the bracing device 50 .

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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)
  • Bulkheads Adapted To Foundation Construction (AREA)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
  • Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
EP21183267.0A 2021-07-01 2021-07-01 Appareil d'excavation de tranchées pour parois moulées et procédé d'excavation d'une paroi moulée dans le sol Active EP4112816B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP21183267.0A EP4112816B1 (fr) 2021-07-01 2021-07-01 Appareil d'excavation de tranchées pour parois moulées et procédé d'excavation d'une paroi moulée dans le sol
PCT/EP2022/066111 WO2023274711A1 (fr) 2021-07-01 2022-06-14 Dispositif de coupe de tranchée et procédé de réalisation d'une tranchée dans le sol
KR1020237041816A KR20240004950A (ko) 2021-07-01 2022-06-14 지면에 트렌치를 생성하기 위한 트렌치 벽 장치 및 방법
CN202280035597.6A CN117321269A (zh) 2021-07-01 2022-06-14 用于在土地中产生槽的槽壁设备和方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP21183267.0A EP4112816B1 (fr) 2021-07-01 2021-07-01 Appareil d'excavation de tranchées pour parois moulées et procédé d'excavation d'une paroi moulée dans le sol

Publications (3)

Publication Number Publication Date
EP4112816A1 true EP4112816A1 (fr) 2023-01-04
EP4112816B1 EP4112816B1 (fr) 2023-09-13
EP4112816C0 EP4112816C0 (fr) 2023-09-13

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ID=76744765

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21183267.0A Active EP4112816B1 (fr) 2021-07-01 2021-07-01 Appareil d'excavation de tranchées pour parois moulées et procédé d'excavation d'une paroi moulée dans le sol

Country Status (4)

Country Link
EP (1) EP4112816B1 (fr)
KR (1) KR20240004950A (fr)
CN (1) CN117321269A (fr)
WO (1) WO2023274711A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017042499A2 (fr) * 2015-09-10 2017-03-16 Soletanche Freyssinet Machine de forage munie d'un dispositif d'ancrage permettant un deplacement horizontal du module de forage en position ancree
WO2017042495A1 (fr) * 2015-09-10 2017-03-16 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 (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017042499A2 (fr) * 2015-09-10 2017-03-16 Soletanche Freyssinet Machine de forage munie d'un dispositif d'ancrage permettant un deplacement horizontal du module de forage en position ancree
WO2017042495A1 (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

Also Published As

Publication number Publication date
CN117321269A (zh) 2023-12-29
KR20240004950A (ko) 2024-01-11
EP4112816B1 (fr) 2023-09-13
WO2023274711A1 (fr) 2023-01-05
EP4112816C0 (fr) 2023-09-13

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