EP2719832B1 - Tête de découpage - Google Patents

Tête de découpage Download PDF

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Publication number
EP2719832B1
EP2719832B1 EP20120007140 EP12007140A EP2719832B1 EP 2719832 B1 EP2719832 B1 EP 2719832B1 EP 20120007140 EP20120007140 EP 20120007140 EP 12007140 A EP12007140 A EP 12007140A EP 2719832 B1 EP2719832 B1 EP 2719832B1
Authority
EP
European Patent Office
Prior art keywords
cutting head
pile tube
mixing
base body
ground
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.)
Not-in-force
Application number
EP20120007140
Other languages
German (de)
English (en)
Other versions
EP2719832A1 (fr
Inventor
Stefan Michael Finkenzeller
Peter Platzek
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 EP20120007140 priority Critical patent/EP2719832B1/fr
Publication of EP2719832A1 publication Critical patent/EP2719832A1/fr
Application granted granted Critical
Publication of EP2719832B1 publication Critical patent/EP2719832B1/fr
Not-in-force 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
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/22—Piles
    • E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
    • E02D5/38—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds
    • 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
    • E02D5/66—Mould-pipes or other moulds
    • E02D5/665—Mould-pipes or other moulds for making piles
    • 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
    • E02D7/28—Placing of hollow pipes or mould pipes by means arranged inside the piles or pipes

Definitions

  • the invention relates to a cutting head for a pile tube, which can be introduced to form a foundation element in the ground, in particular in a body of water.
  • the invention further relates to a pile tube and a device for creating a foundation element in the ground.
  • a pile pipe for introduction into a body of water is for example in the WO 2010/015799 A2 or the EP 2011958 A described.
  • a hole in the bottom of the water is created by means of high-pressure injection, in which the pile tube is lowered.
  • a method for introducing a pipe into a river bed starting from a swimming platform is in US 3,672,447 described.
  • the invention has for its object to provide a cutting head for a pile tube, a pile tube and a device for creating a foundation element, which allow economic insertion and secure anchoring of the pile tube.
  • the cutting head comprises an annular removal device for removing soil material, a connection region for connecting a tubular base body of the pile tube and a mixing section between the removal device and the connection region for mixing a supplied hardenable medium with abraded soil material. Furthermore, according to the invention provided that lateral openings are formed at the mixing section, through which the curable medium mixed with the removed soil material can be conducted out of an interior of the cutting head radially outwards out of the cutting head.
  • a basic idea of the invention can therefore be seen to provide a cutting head with a mixing space for producing a mixture of removed soil material and another medium and to provide the mixing space with lateral openings for passing the mixture produced.
  • a plurality of openings is arranged distributed in the circumferential direction. Furthermore, a plurality of openings can be arranged axially one above the other. Through the openings, the curable medium or filling material enters an annular area outside the pile tube, where it anchors the post tube safely in the ground after curing.
  • the cutting head according to the invention can be used with particular advantage together with a drilling device for boring the pile tube, which has a drilling tool and a mixing device arranged above it.
  • the mixing device may comprise one or more mixing blades, which may in particular be driven in rotation.
  • the mixing blades By means of the mixing blades, the removed soil material can be mixed with a supplied, curable medium, wherein from the removed soil material and the curable medium, a filling material for filling the pile tube is formed.
  • a mixing section or mixing space is formed in the cutting head.
  • the particular cylindrical mixing section or mixing chamber has in its outer wall a plurality of openings through which the filling material produced in the mixing chamber, in particular by a Rotary movement of the mixing blades, radially outward into an annulus between the cutting head and the surrounding soil can be promoted.
  • the lateral openings in the cylinder wall of the cutting head are preferably dimensioned large, so that reliable enough backfill material can get into the outer annulus.
  • the openings in the circumferential direction preferably cover an area of at least 30%, more preferably of at least 50%. Webs are formed between individual openings, wherein the openings preferably have a greater width in the circumferential direction than the intermediate webs.
  • At least one fixed mixing element is arranged on an inner wall of the mixing section.
  • the stirring or mixing element may be a radially protruding protuberance or a sheet.
  • a plurality of fixed mixing elements or mixing plates are arranged distributed on an inner wall of the mixing section in the circumferential direction.
  • the mixing elements can advantageously be arranged so that they are located directly above and / or below the mixing blades in a drilling device used with mixing blades. In this way, a particularly efficient mixing can be realized in interaction with the preferably rotationally driven mixing blades of the drilling device.
  • a good mixing effect in conjunction with an efficient delivery of the filling material through the lateral openings out of the cutting head is achieved in that the mixing plates are arranged at the level of the openings, preferably at the webs formed between the openings. It is particularly advantageous if in each case at least two mixing elements offset axially from one another are arranged between the openings, between which the rotating mixing vanes of the drilling device can move.
  • the axially offset mixing elements can also be designed as one-piece elements with a central groove.
  • a stop is provided, on which a in the cutting head used drilling device is axially supported.
  • a defined position of a drilling tool inserted into the cutting head can be set, so that cutting head and inserted therein drilling tool can be drilled together with a defined relative position to each other.
  • the mixing process in a defined axial height of the pile tube or cutting head can be carried out by the common sinking of pile tube and arranged therein drilling device. Preferably, this height is defined so that the lateral openings are formed at the level of the mixing device.
  • the annular cutter of the cutting head protrudes inwardly of the mixing section.
  • the cutting device which may also be referred to as a cutting ring, forms a stable, lower termination of the cutting head and may be provided with a plurality of annularly arranged Bodenabtrags instituten.
  • the stop for the drilling device may be formed in particular on the cutting ring.
  • the pile tube according to the invention comprises a cutting head according to the invention and a tubular base body of the pile tube, which is connected to the cutting head.
  • the tubular base body which forms the predominant length of the pile tube, can in principle be composed of a plurality of interconnectable pile tube segments and can also be referred to as a pile tube base body.
  • the tubular body of the pile tube has lateral openings. These, as well as the lateral openings in the cutting head, serve to direct a hardenable medium or filling material for filling the pile tube in an annular outer area between the pile tube and the surrounding soil.
  • An effective backfilling of the annular space outside the pile tube can be achieved in that the lateral openings are formed in a lower region of the tubular base body of the pile tube.
  • An effective Verchell Scheme outside the pile tube for securely anchoring the pile tube can be provided in that the tubular body of the pile tube, at least in sections, has a smaller outer diameter than the cutting head. As a result, a larger hole in the ground is cut free by the cutting head, as for the remaining pile tube, so the tubular body, would actually be required.
  • the annular space formed above the cutting head can then be filled with the curable medium or filling material, so that a particularly secure anchoring occurs.
  • the device according to the invention for creating a foundation element in the ground, in particular in a body of water comprises a pile pipe according to the invention and a drilling device with a rotationally drivable drilling tool for removing soil material within the pile pipe.
  • the drilling device can preferably be used as a separate unit in the pile tube or placed on this and comprises a rotary drive for a drill pipe, which extends through the pile tube and at its lower end has the drilling tool.
  • the drilling device preferably has a mixing device above the drilling tool, which comprises at least one mixing disk which can be driven in rotation and with which the soil material removed by the drilling tool can be mixed within the pile tube with a supplied curable medium to form a filling material.
  • a mixing device above the drilling tool, which comprises at least one mixing disk which can be driven in rotation and with which the soil material removed by the drilling tool can be mixed within the pile tube with a supplied curable medium to form a filling material.
  • Fig. 1 shows a pipe according to the invention 20 with a drilling device 40 inserted therein.
  • the pile tube 20 comprises a tubular base body 22 and attached thereto by means of a mounting flange cutting head 24.
  • the cutting head 24 has relative to the tubular body 22 has a slightly larger outer diameter.
  • the lower portion of the tubular body 22 is provided with a plurality of openings 26 which are arranged in rows and distributed in the circumferential direction.
  • the openings 26 are provided to direct a backfill material from inside the pile tube 20 into an outer annular space between the pile tube 20 and the surrounding soil.
  • the entire pile tube 20 with base body 22 and cutting head 24 is intended to remain as a support structure in the ground.
  • the cutting head 24 at its lower end an annular removal or cutting device 27 or a cutting ring with a plurality of Abtrags instituten 28 on.
  • the cutting ring 27 or a lower end face of the cutting head 24 protrudes inwards relative to the overlying pipe wall, thus has a greater radial extent than the overlying pipe wall.
  • the end face and the abrading elements 28 arranged thereon extend radially to approximately at the level of the inner circumference of the tubular base body 22 inwards. In other words, the space bounded by the end face or the cutting ring 27 corresponds approximately to the inner cross section of the tubular base body 22.
  • the cutting head 24 comprises, above the cutting device 27, a mixing section 36 in which a mixing space is formed for mixing removed soil material with a supplied curable medium.
  • a mixing section 36 On a cylindrical lateral surface of the mixing section 36, a plurality of radial openings 30 are formed, which extend along the circumference of the cutting head 24. The openings 30 are provided to discharge the filler material produced by mixing radially outward from the pile tube 20.
  • the particular rectangular openings 30 are separated from each other by vertical webs 32 in the circumferential direction. Between the openings 30, preferably on an inner side of the webs 32, respectively fixed mixing elements 34 are fixed, which protrude inwards and in particular may be designed as mixing plates.
  • the mixing plates each extend in a radial plane and are in particular intended to cooperate with rotatingly driven mixing vanes 62 of a drilling device 40 arranged in the pile tube 20.
  • a drilling device 40 arranged in the pile tube 20.
  • two axially superposed rows of mixing elements 34 may be provided, between which the rotating driven mixing blades 62 can move.
  • the mixing vanes 62 move approximately at the level of the openings 30.
  • the cutting head 24 in particular represents a separate element, which can be attached exchangeably or detachably to the base body 22.
  • conventional tubular body of a pile tube can be retrofitted with a cutting head 24 according to the invention.
  • a connection region 38 for connecting the base body 24 is provided at an upper end of the cutting head 24.
  • a drive device 44 for example a rotary motor with a reduction gear, is arranged in the region of the support frame 42.
  • the support frame 42 is inserted in the illustrated embodiment in the pile tube 20 and in this by means of a clamping device 48, preferably by means of hydraulic cylinders, can be clamped. Instead of such a clamping on the pile tube inner wall of the support frame 42 but can also be set at an upper edge of the pile tube 20.
  • a mixing device 60 which preferably comprises a plurality of mixing blades 62 that can be driven in rotation and that are fastened to the drill pipe 46.
  • the drill pipe 46 may be made telescopic, so that the drilling tool 50 and the mixing vanes 62 can move axially within the pile tube 20. The dissolved soil can thus be effectively mixed with curable suspension.
  • the mixing vanes 62 each have a base element 64, which is attached to the drill pipe 46, and a mixing paddle 66, which is mounted pivotably on the base element 64.
  • the openings 30 of the mixing section 36 are located approximately at the height of the mixing vanes 62.
  • the base members 64 are designed so that the drilling device 40 can be inserted axially through the base body 22 of the pile tube 20 and the fixed mixing elements 34 of the cutting head 24 over.
  • the outer mixing paddles 66 are folded.
  • the mixing paddles 66 extend radially outwards from the base elements 64 into a radially outer region of the cutting head 24, in particular between the rows of mixing elements 34.
  • the mixing paddles 66 are folded out, in particular, by the upwardly drilled soil material.
  • a device 10 according to the invention for creating a foundation element in the ground can furthermore have a supporting structure, not shown in the figures, which can be placed on the bottom of the water.
  • the support structure may in particular have extendable outriggers for leveling out the support structure on the bottom of the water.
  • On the support structure is preferably in a lower and an upper region each have a clamping and rotating means with which the pile tube 20 is rotatable and / or pivotable.
  • an axial displacement device through which the pile tube 20 can be introduced into the soil.
  • a supply device For supplying a curable medium, a supply device is provided which may have a channel in a core tube of the drilling device or a supply line on the pile tube 20.
  • the curable medium which may in particular be a curable liquid or suspension, can also be injected under high pressure.
  • Fig. 3 shows a drilling device 40 without pile tube 20.
  • a suspension 43 At an upper end of the drilling or drilling equipment 40 is a suspension 43, with which the drilling device 40 can be lowered, for example via a support cable into the pile tube 20 and pulled out of this.
  • Fig. 4 is the annular cutter 27 of the pile tube 20 with the Abtrags instituten 28 to see.
  • the drilling tool 50 of the drilling device 40 comprises a support ring 56, on the outside of which support elements 58 for supporting on the cutting head 24 are provided. In this way, the drilling tool 50 can be safely centered within the cutting head 24.
  • a plurality of baffles 54 Between the support ring 56 and the drilling axis or the drill pipe 46 extends a plurality of baffles 54, to each of which a plurality of removal elements 52 are arranged for removing soil.
  • the support structure is first discharged onto the bottom of the river and leveled by means of extendable outriggers.
  • the pile tube 20 is screwed into the ground.
  • the internal drilling device 40 releases the soil and mixes it with the curable medium fed in via a feed line. Is the desired final depth of the pile tube 20 reached and the interior of the pile tube 20 and optionally the intermediate space between the pole tube 20 and the borehole wall in the bottom of the water is filled with hardenable suspension, the drilling device 40 is withdrawn while rotating the mixing vanes 62 and removed from the pile tube 20.
  • the pile tube 20 with the tubular, open base body 22 and the lower cutting head 24 with Abtragsettin 28 or cutting device 27 remains in the body of water.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Piles And Underground Anchors (AREA)

Claims (10)

  1. Tête de coupe pour un pieu tubulaire qui, pour la formation d'un élément de fondation, peut être introduit dans le sol, avec :
    - un dispositif d'enlèvement de forme annulaire (27) pour l'enlèvement de la matière du sol,
    - une région de raccordement (38) pour le raccordement d'un corps de base de forme tubulaire (22) du pieu tubulaire (20), et
    - une section de mélange (36) entre le dispositif d'enlèvement (27) et la région de raccordement (38) pour le mélange d'un milieu durcissable rapporté et de matière de sol enlevée,
    la section de mélange (36) présentant des ouvertures latérales (30), par lesquelles le milieu durcissable mélangé à la matière enlevée du sol peut être conduit, à partir d'un espace intérieur de la tête de coupe (24), de manière radiale vers l'extérieur de la tête de coupe (24).
  2. Tête de coupe selon la revendication 1,
    caractérisée :
    en ce qu'au moins un élément de mélange fixe (34) est disposé contre une paroi intérieure de la section de mélange (36).
  3. Tête de coupe selon la revendication 1 ou 2,
    caractérisé :
    en ce que plusieurs éléments de mélange fixes (34) sont disposés contre une paroi intérieure de la section de mélange (36) en étant répartis dans la direction de la circonférence.
  4. Tête de coupe selon une des revendications 1 à 3,
    caractérisé :
    en ce qu'au niveau d'une région inférieure, une butée est prévue, contre laquelle un dispositif de forage (40) placé dans la tête de coupe (24) peut s'appuyer de manière axiale.
  5. Tête de coupe selon une des revendications 1 à 4,
    caractérisé :
    en ce que le dispositif d'enlèvement de forme annulaire (27) s'étend vers l'intérieur par rapport à la section de mélange (36) de forme tubulaire.
  6. Pieu tubulaire destiné à une mise en place dans le sol pour la formation d'un élément de fondation, avec :
    - une tête de coupe (24) selon une des revendications 1 à 5, et
    - un corps de base de forme tubulaire (22), qui est raccordé à la tête de coupe (24).
  7. Pieu tubulaire selon la revendication 6,
    caractérisé :
    en ce que le corps de base de forme tubulaire (22) comporte des ouvertures latérales (26).
  8. Pieu tubulaire selon la revendication 7,
    caractérisé :
    en ce que les ouvertures latérales (26) sont formées dans une région inférieure du corps de base de forme tubulaire (22).
  9. Appareil pour la réalisation d'un élément de fondation dans le sol, plus particulièrement dans un fond immergé, incluant un pieu tubulaire (20) selon une des revendications 6 à 8 et un dispositif de forage (40) avec un outil de forage (50) pouvant être entraîné en rotation pour l'enlèvement de matière du sol à l'intérieur du pieu tubulaire (20).
  10. Appareil selon la revendication 9,
    caractérisé :
    en ce que le dispositif de forage (40) comprend au-dessus de l'outil de forage (50) un dispositif de mélange (60), qui inclut au moins une pale de mélange (62) pouvant être entraînée en rotation, au moyen de laquelle la matière du sol enlevée par l'outil de forage (50) peut être mélangée à l'intérieur du pieu tubulaire (20) avec un milieu durcissable qui est apporté, pour la formation d'un matériau de remblayage.
EP20120007140 2012-10-15 2012-10-15 Tête de découpage Not-in-force EP2719832B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20120007140 EP2719832B1 (fr) 2012-10-15 2012-10-15 Tête de découpage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20120007140 EP2719832B1 (fr) 2012-10-15 2012-10-15 Tête de découpage

Publications (2)

Publication Number Publication Date
EP2719832A1 EP2719832A1 (fr) 2014-04-16
EP2719832B1 true EP2719832B1 (fr) 2015-03-25

Family

ID=47142872

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20120007140 Not-in-force EP2719832B1 (fr) 2012-10-15 2012-10-15 Tête de découpage

Country Status (1)

Country Link
EP (1) EP2719832B1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TR2023009474A2 (tr) * 2023-08-08 2023-11-21 Murat Ates Makine Imalat Sanayi Ve Ticaret Anonim Sirketi Bi̇r dönerek kazici, toplayici ve tahli̇ye edi̇ci̇ i̇ş maki̇nesi̇ ataşmani ve çalişma yöntemi̇

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3672447A (en) 1968-09-10 1972-06-27 Richfield Oil Corp Marine well drilling method and apparatus
DE10155105C1 (de) * 2001-11-09 2003-04-10 Bauer Maschinen Gmbh Bohrvorrichtung und Bohrverfahren
ATE442511T1 (de) * 2007-07-06 2009-09-15 Bauer Maschinen Gmbh Erdbohrer
GB0814341D0 (en) 2008-08-06 2008-09-10 Aws Ocean Energy Ltd Pile system

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Publication number Publication date
EP2719832A1 (fr) 2014-04-16

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