EP4098803A1 - Lance de bourrage vibrante et procédé d'équipement d'un mât d'une lance de bourrage vibrante - Google Patents

Lance de bourrage vibrante et procédé d'équipement d'un mât d'une lance de bourrage vibrante Download PDF

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Publication number
EP4098803A1
EP4098803A1 EP21176859.3A EP21176859A EP4098803A1 EP 4098803 A1 EP4098803 A1 EP 4098803A1 EP 21176859 A EP21176859 A EP 21176859A EP 4098803 A1 EP4098803 A1 EP 4098803A1
Authority
EP
European Patent Office
Prior art keywords
vibrator
leader
carriage
plant
tamping
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
EP21176859.3A
Other languages
German (de)
English (en)
Inventor
Christian Heichel
Albrecht Kleibl
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.)
ABI Anlagentechnik Baumaschinen Industriebedarf Maschinenfabrik und Vertriebsgesellschaft mbH
Original Assignee
ABI Anlagentechnik Baumaschinen Industriebedarf Maschinenfabrik und Vertriebsgesellschaft mbH
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 ABI Anlagentechnik Baumaschinen Industriebedarf Maschinenfabrik und Vertriebsgesellschaft mbH filed Critical ABI Anlagentechnik Baumaschinen Industriebedarf Maschinenfabrik und Vertriebsgesellschaft mbH
Priority to EP21176859.3A priority Critical patent/EP4098803A1/fr
Priority to US17/716,008 priority patent/US11873615B2/en
Publication of EP4098803A1 publication Critical patent/EP4098803A1/fr
Pending legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/02—Improving by compacting
    • E02D3/08—Improving by compacting by inserting stones or lost bodies, e.g. compaction piles
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/02—Improving by compacting
    • E02D3/046—Improving by compacting by tamping or vibrating, e.g. with auxiliary watering of the soil
    • E02D3/054—Improving by compacting by tamping or vibrating, e.g. with auxiliary watering of the soil involving penetration of the soil, e.g. vibroflotation
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
    • E02D7/18—Placing by vibrating

Definitions

  • the invention relates to a vibratory stop system according to the preamble of patent claim 1.
  • the invention also relates to a method for equipping a leader of a construction machine with a vibrator stop system according to patent claim 14.
  • the pipe is filled with suitable additional material such as gravel, slag or crushed stone and then pulled alternately, with material continuously emerging from the side of the pipe facing the ground, which is further compacted by repeatedly lowering the pipe.
  • suitable additional material such as gravel, slag or crushed stone
  • the vibratory tamping plant has a hopper connected to the tamping tube for feeding in the material.
  • the process is becoming increasingly established for the production of in-situ concrete piles, often also referred to as in-situ concrete piles.
  • the tamping tube which is open at the bottom, is filled with concrete after it has been rammed in and then pulled out of the ground.
  • vibratory tamping plants for this method are provided with a hopper for pouring concrete, which is arranged at the upper end of the tamping tube.
  • the vibro tamping compaction is to be differentiated from the vibratory pressure compaction.
  • the Vibro compaction is usually carried out with a depth vibrator.
  • an imbalance rotates around a vertical axis in the tip of the vibrator.
  • the depth vibrator is technically very different from a vibrator. While the vibrator performs an oscillating linear vertical movement, the deep vibrator moves on a circular path that lies in a horizontal plane.
  • the vibrating tamping plant is attached to a leader-guided vibrator.
  • High demands are placed on the connection between the vibrator and the vibrating tamping plant, since the tendency of the tamping tube to run away from the vertical usually results in high bending moments at the connection point.
  • the bending moments on the vibrator and leader resulting from the tamping tube running away result in increased wear of the slide rails, which guide both the oscillating exciter cell in the vibrator hood and the carriage on which the vibrator is mounted on the leader.
  • the vibrator plant is either attached with a hydraulic clamp mounted on the vibrator, or the vibrator plant is directly connected to the vibrator via a screw connection.
  • the vibrator is attached to a carriage that can be moved along the leader of the construction machine.
  • the vibrator lance is now mounted on the vibrator using a suitable sling and the vibrator is moved up the leader until the vibrator lance assumes a vertical position.
  • the vibrator plant is then connected to the vibrator using a clamping device or a screw connection
  • the invention aims to remedy the situation.
  • the invention is based on the object of providing a vibration damping plant which can be set up with minimal effort of a construction machine while at the same time reducing the risk potential. According to the invention, this object is achieved by a vibrating plant having the features of the characterizing part of patent claim 1.
  • a vibration damping plant which allows a construction machine to be set up with minimal effort and at the same time with a reduced risk potential.
  • the filling piece comprises a feed pipe and a filling funnel and/or a hose connection flange.
  • the means comprise a connection part which is pivotably connected to the vibrator and which can be fastened to a carriage guided in a displaceable manner on the leader makes it possible to fasten it to a carriage guided in a movable manner on the leader. Thanks to a fastening that can be swiveled around a horizontal axis, the vibrator plant is able to swing when it is freely suspended.
  • the stuffing tube is preferably firmly connected to the vibrator, ie to the housing or housings in which the unbalanced masses rotate.
  • the vibrator and stuffing tube are firmly connected, for example screwed, via the feed tube of the filler piece.
  • the clamp tongs usually used to fasten the vibrator plant as piling material to the vibrator are no longer required.
  • connection part is connected elastically to the vibrator, the elastic connection being formed by rubber-metal rails and/or spiral springs and/or elastomer elements.
  • the connection part can comprise a connection plate or also a connection frame which can be fastened to the carriage.
  • connection part has hooks and/or receiving holes on, which correspond to arranged on the leader's carriage receiving holes or hooks. In this way, a form-fitting attachment of the vibrator to the carriage with minimal effort is achieved.
  • connection part itself can also be designed as a carriage and provided with guides, via which it can be slidably fastened directly to the leader.
  • this alternative has the disadvantage that this carriage would then have to be connected to the leader's feed ropes, which is complex, especially since these feed ropes would first have to be released again when the construction machine was dismantled.
  • connection part is provided with a storage rack which is detachably fastened to the connection part.
  • a storage rack which is detachably fastened to the connection part.
  • the storage rack is fastened to the connection part using bolts and/or screws. This enables the storage frame to be easily dismantled after the vibration damper plant has been attached to the leader of a construction machine.
  • the storage rack has a support surface, in particular a U-shaped support surface, which is positioned at right angles to the connection part.
  • the storage frame can be used as a support foot for mounting the connection part on the leader.
  • the vibrator is received by the storage frame in a framing manner due to the U-shaped design of the support surface.
  • connection part has a projecting gallows which is pivotably connected to the vibrator. This allows a pivot axis spaced apart from the connection part which the vibrator plant can be positioned parallel to the connection part.
  • the filling piece comprises a filling funnel which is connected to the stuffing tube via at least one spring element and/or via an elastic sealing element.
  • a filling funnel which is connected to the stuffing tube via at least one spring element and/or via an elastic sealing element. This prevents the tamping material, e.g. gravel, from being pinched and crushed between the tamping tube and funnel. This damage mechanism regularly leads to considerable wear.
  • the funnel is decoupled from the stuffing tube and does not vibrate.
  • the vibrator has a passage that is aligned with the stuffing tube, the passage having a cross section that is greater than or equal to the cross section of the stuffing tube. This enables reinforcement elements to be fed into the stuffing tube by the vibrator.
  • the filling piece comprises a filling funnel and a piece of pipe which is connected to the stuffing pipe is guided through the passage, the piece of pipe having at least one lateral opening inside the funnel.
  • the funnel preferably encloses the pipe section, whereby it does not vibrate with the pipe section but is mounted elastically, with the gap between the funnel and pipe section being closed by a seal.
  • the filling piece includes a filling funnel and the vibrator includes two exciter cells which are firmly connected to the feed pipe, the exciter cells being connected to one another via a yoke. This achieves a straight passage in the direction of the axis of rotation of the stuffing tube for introducing reinforcement or structural elements.
  • the vibrator is designed to be self-synchronized, with the exciter cells not being forced to be synchronized via a gear. At least two individual imbalances rotate without being coupled by a gear. The imbalances are arranged next to each other so that sets up a vertical oscillation. A solid connection with the long, heavy and rigid stuffing tube provides good conditions for self-synchronization.
  • a gear is therefore detachably connected to the exciter cells, via which the exciter cells are positively synchronized.
  • the transmission is advantageously designed as a synchronization module that can be screwed onto the two exciter cells as required.
  • the subject matter of the present invention is also a construction machine with a leader on which a carriage is movably guided, on which a vibratory stop plant of the aforementioned type is pivotably attached.
  • the invention is also based on the object of providing a method for equipping a leader of a construction machine with a vibration damper plant, which allows the construction machine to be equipped with minimal effort and at the same time reduces the risk potential. According to the invention, this object is achieved by a method having the features of patent claim 14 . Because the leader is initially aligned vertically, the vibrator is positioned largely horizontally and the vibrator of the vibrator is pivotally attached to a carriage guided on the leader, after which the carriage is moved upwards along the leader until the tamping tube of the vibrator is in a vertical position is above the ground, all set-up work can be carried out close to the ground.
  • connection part of the vibrating tamping column has fastening means which interact positively and/or non-positively with fastening means arranged on the carriage of the leader, with the connection part pivotably connected to the vibrator being aligned vertically so that it stands up on the storage frame, and the connection part being connected to the carriage, then the carriage is first moved upwards along the leader so that the storage frame no longer has any contact with the ground, after which the storage frame is removed from the connection part, and then the carriage is moved further upwards until the tamping tube of the vibromacerator plant is in a vertical position above the ground. In this way, the effort required for setting up the leader of the construction machine is minimized.
  • the construction machine is preferably moved horizontally in such a way that the tip of the stuffing tube performs as little translational movement as possible relative to the ground.
  • the movement of the construction machine is particularly important when dismantling. When disarming the vibrator plant, it is initially in a vertical position. For dismantling, the carriage on the leader has to be moved downwards, with the construction machine having to be moved backwards at the same time. It is important that the construction machine moves at least fast enough that the tip of the stuffing tube resting on the ground is not pushed forward, ie away from the construction machine.
  • the required travel speed of the construction machine can be calculated from the (to be specified) length of the tamping tube and the carriage speed when rigging. During dismantling, the lance length results from the carriage position, so that the required travel speed can be calculated from the carriage position and carriage speed.
  • a computer and control unit can advantageously be present, in which an algorithm for calculating the travel speed from the sled speed is stored and which is set up to automatically move the construction machine when the sled is moved for setup or dismantling.
  • the vibrator plant selected as an exemplary embodiment comprises a tube 1 which penetrates a funnel 2 to which it is connected and to which a vibrator 3 is attached at the end, to which a connecting part 4 is pivotally attached.
  • the tube 1 is essentially formed from a stuffing tube 11, which is connected to a feed tube 12 and which is provided at its end opposite the feed tube 12 with a tip 13 designed in the manner of a conically tapering sleeve at the end, which is slipped over the stuffing tube 11 and is screwed to this.
  • the feed tube 12 has a peripheral flange 121, 122 at each of its two ends.
  • the two flanges 121, 122 each border on four axially running ribs 123 which are offset from one another by 90° all the way around the feed pipe 12.
  • a first flange 121 of the feed pipe 12 is screwed to a flange 111 on the end of the stuffing pipe 11, so that the Feed tube 12 is connected to the stuffing tube 11 in alignment.
  • the hopper 2 comprises a rear wall 31 running parallel to the feed pipe 12, an inlet wall 32 spaced apart from this and angled outwards, and two parallel side walls 23 connecting the rear wall 21 and the inlet wall 22 on both sides, which together form a substantially rectangular passage limit, in which a bottom plate 24 is used, through which the feed tube 12 is guided.
  • Inside the funnel 2 there is a support ring 25 with a substantially rectangular cross-section, which is connected to the rear, inlet and side walls 21, 22, 23 via four struts 251 offset from one another by 90°.
  • the hopper 2 is provided with a support plate 26 at each rear, side and inlet wall 21, 22, 23.
  • the feed tube 12 is connected to the hopper 2 via springs 124 .
  • the springs 124 are arranged on the one hand between the ribs 122 adjoining the first flange 121 and the support plates 26 and on the other hand between the ribs 122 adjoining the second flange 122 and the support ring 25 .
  • the springs 124 are formed by oscillating metal springs.
  • two openings 125 penetrating the pipe wall are made in the feed pipe 12 diametrically opposite one another. The openings 125 are used for the entry of filling material fed into the hopper 2 into the stuffing tube 11.
  • An elastic seal 241 is arranged between the oscillating feed pipe 12 and the hopper 2 connected to it by springs 124 , which seal closes the gap between the base plate 24 of the hopper 2 and the feed pipe 12 .
  • This seal 241 must be wide enough to be able to compensate for the vertical displacement path between the feed pipe 12 and the funnel 2 without being damaged. This displacement path results from the static displacement of the funnel 2 as a result of its own weight and its load, as well as from the oscillating movement of the feed pipe 12.
  • the seal 241 is made of rubber. Alternatively, it can also be made of an elastomeric plastic.
  • the vibrator 3 comprises a housing 31 with a bottom flange 32 which is screwed to the second flange 122 of the feed tube 12 .
  • a pipe socket 321 which projects into the housing 31 and is aligned with the feed pipe 12 is integrally formed on the flange 32 .
  • the housing 3 accommodates two excitation cells 33 arranged opposite one another, between which the pipe socket 321 runs and which each have a shaft 332 which is connected to a hydraulic motor 331 and on which an unbalanced mass 333 is arranged.
  • a yoke 34 On the upper side of the housing 3 opposite the flange 32 there is a yoke 34 on which two pairs of retaining plates 35 are welded at a parallel distance from one another, each of which is provided with bores 351, the bores 351 of the two pairs of retaining plates 35 being aligned with one another.
  • connection part 4 comprises a substantially rectangular connection plate 41, on the longitudinal sides of which side plates 42 are arranged, which are connected to one another on the upper side of the connection part 4 via a head plate 44.
  • the side plates 24 each have on the upper side of the connection part 4 an arm 421 which projects approximately orthogonally to the connection plate 41 and forms a gallows, in which a bore 422 is introduced, the bores 422 of the arms 421 arranged parallel to one another being aligned with one another.
  • the connecting part 4 is pivotally connected to the yoke 34 of the housing 31 of the vibrator 3, the arms 421 being positioned between the retaining plates 35 of a pair of retaining plates in such a way that the bores 422 of the arms 421 are aligned with the bores 351 of the retaining plates 35, with the bores 351, 422 of the retaining plates 35 and the arms 422, a bolt 45 is guided, which acts as a pivot axis.
  • the storage rack 5 consists essentially of a C-shaped frame 51, which has two holding arms 52 positioned orthogonally to this and arranged parallel to one another at the transitions between the central web and the legs.
  • the holding arms 52 are each provided with a bore 521 at their free end. Spaced apart from the two aligned bores 521 of the two holding arms 52 is an axle receptacle 522, through which an axle--not shown--is guided, via which the two holding arms 52 are connected to one another.
  • Also arranged on the frame 51 are two foot pieces 53 which protrude outwards and each continue a leg 511 and extend over a region of a holding arm 52 .
  • the storage rack 5 is then pivoted about the axis (not shown) until the bores 521 in the retaining arms 52 are aligned with the bores 432 in the retaining links 43 .
  • the holding arms 52 are then connected to the side plates 42 of the connection part 4 by means of bolts which are passed through the bores 521, 432.
  • the tamping column is first positioned in the transport position ( Figure 2a ).
  • the connecting part 4 is then pivoted with the storage frame 5 attached to it in such a way that that the connecting part 4 stands on the storage frame 5, which in this position acts as a base ( Figure 2b ).
  • the vertically positioned leader 61 of the construction machine 6 is placed on the vertically positioned connection part 4, which is connected to the carriage 62 of the leader 61.
  • the carriage 62 is moved with the connecting part 4 along the leader 61 until the storage frame 5 floats freely.
  • the storage frame 5 is then removed from the connection part 4 and the carriage 62 is moved upwards until the tamping tube 11 of the vibratory tamping column has reached its vertical working position.
  • FIG 4 an alternative embodiment of a vibrating tamping column is shown without a vibrator.
  • the feed pipe 12 ' is provided with a pipe socket 126 for connecting a - concrete line - not shown.
  • FIG 6 An alternative embodiment of the yoke 34' is shown.
  • the yoke 34' accommodates an oscillating housing 341 in which oscillating metal rails 342 are arranged at a distance from one another.
  • the vibrating metal rails 342 absorb forces both in horizontal directions and in vertical directions.
  • Two spiral springs 343 are arranged on the outside of the vibration housing at a distance from one another, which are connected to the yoke 43' and which essentially absorb forces in the vertical direction.
  • Crane buffers can also be arranged instead of the spiral springs 343 .
  • the connecting part 4' is designed as a carriage, in the guides 46 of which the leader 61 is retracted. After attaching the feed ropes (not shown) to the connection part 4' designed as a carriage, this can be moved along the leader.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Civil Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • General Engineering & Computer Science (AREA)
  • Soil Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Agronomy & Crop Science (AREA)
  • Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
EP21176859.3A 2021-05-31 2021-05-31 Lance de bourrage vibrante et procédé d'équipement d'un mât d'une lance de bourrage vibrante Pending EP4098803A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP21176859.3A EP4098803A1 (fr) 2021-05-31 2021-05-31 Lance de bourrage vibrante et procédé d'équipement d'un mât d'une lance de bourrage vibrante
US17/716,008 US11873615B2 (en) 2021-05-31 2022-04-08 Vibro replacement probe and method for equipping a leader with a vibro replacement probe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP21176859.3A EP4098803A1 (fr) 2021-05-31 2021-05-31 Lance de bourrage vibrante et procédé d'équipement d'un mât d'une lance de bourrage vibrante

Publications (1)

Publication Number Publication Date
EP4098803A1 true EP4098803A1 (fr) 2022-12-07

Family

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EP21176859.3A Pending EP4098803A1 (fr) 2021-05-31 2021-05-31 Lance de bourrage vibrante et procédé d'équipement d'un mât d'une lance de bourrage vibrante

Country Status (2)

Country Link
US (1) US11873615B2 (fr)
EP (1) EP4098803A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115038842A (zh) * 2019-11-29 2022-09-09 杰米生命有限公司 用于在钻孔中逐层填充和压实粘性建筑材料的方法和装置

Citations (2)

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EP2669436A1 (fr) * 2012-05-30 2013-12-04 ABI Anlagentechnik-Baumaschinen-Industriebedarf Maschinenfabrik und Vertriebsgesellschaft mbH Dispositif de battage et de traction

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EP2669436A1 (fr) * 2012-05-30 2013-12-04 ABI Anlagentechnik-Baumaschinen-Industriebedarf Maschinenfabrik und Vertriebsgesellschaft mbH Dispositif de battage et de traction

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Publication number Publication date
US20220380995A1 (en) 2022-12-01
US11873615B2 (en) 2024-01-16

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