EP1640507A1 - Appareil de forage pour pieu - Google Patents

Appareil de forage pour pieu Download PDF

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Publication number
EP1640507A1
EP1640507A1 EP04022732A EP04022732A EP1640507A1 EP 1640507 A1 EP1640507 A1 EP 1640507A1 EP 04022732 A EP04022732 A EP 04022732A EP 04022732 A EP04022732 A EP 04022732A EP 1640507 A1 EP1640507 A1 EP 1640507A1
Authority
EP
European Patent Office
Prior art keywords
boring tool
pile
drilling
tool according
pile boring
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.)
Withdrawn
Application number
EP04022732A
Other languages
German (de)
English (en)
Inventor
Reinhard Reich
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 EP04022732A priority Critical patent/EP1640507A1/fr
Priority to US11/206,078 priority patent/US20060060386A1/en
Priority to RU2005127655/03A priority patent/RU2327024C2/ru
Priority to SG200505670A priority patent/SG121098A1/en
Priority to JP2005274895A priority patent/JP4031496B2/ja
Publication of EP1640507A1 publication Critical patent/EP1640507A1/fr
Withdrawn legal-status Critical Current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
    • 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
    • E02D5/36—Concrete or concrete-like piles cast in position ; Apparatus for making same making without use of mouldpipes or other moulds
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/003—Drilling with mechanical conveying means
    • E21B7/005—Drilling with mechanical conveying means with helical conveying means
    • E21B7/006—Drilling with mechanical conveying means with helical conveying means combined with a bucket-type container

Definitions

  • the invention relates to a pile boring tool for creating a pile borehole according to the preamble of claim 1, with a central axis to the drilling axis, at least one edge directed transversely to the drilling axis, on which a plurality of cutting teeth is arranged, and a conveyor for receiving and / or discharging the Drilled material removed from the cutting teeth.
  • Pile drilling for example, is used to create pile foundations, so-called foundation piles, for buildings.
  • This type of foundation is necessary, for example, if the substrate on which the building is to be erected does not have sufficient bearing capacity.
  • pile bores large columnar cavities are driven so far into the ground until sufficient load bearing capacity is ensured. Subsequently, these cavities are filled with cement or a similar material.
  • the piles can be made exactly at the calculated location in the soil. In particular, deviations in the drilling direction should be avoided.
  • pile boring tools for example, so-called drilling buckets are known.
  • Such pile boring tools are operated in a discontinuous drilling process, ie the pile boring tool is first drilled in the ground. When enough soil material is loosened and the bucket is filled, the tool is pulled out of the pile well with the soil material. The bucket is emptied, and then drilling can continue.
  • pile bores serve as foundations, they must be designed accordingly large. Therefore, a pile drill must therefore generally be positioned, as disclosed in DE 41 32 314 C1, by a caterpillar tracked vehicle for drilling, for example. During the drilling can be performed by this carrier device, the upper portion of the drilling tool. When creating in particular deeper pile bores, this upper guide is hardly sufficient for directional drilling alone.
  • the invention has for its object to provide a pile boring tool, which allows a particularly accurate pile production.
  • the pile boring tool according to the invention is characterized in that at least two cutting edges are arranged in the drilling direction leading to the cutting teeth, which are offset from each other and spaced apart to form a center clearance.
  • a basic idea of the invention is to be able to guide the pile boring tool better in the desired direction during drilling by means of a double centering function.
  • a first centering function is through the two cutting edges reached, which are located in the center of the bottom of the pile boring tool. These two spaced from the pile boring tool cutting edges form a free space in the middle. In this middle space remains a part of the soil. So it forms in the center of the pile bore a leading cone, which causes a second centering function. These staggered three, four or more cutting edges thus provide inner and outer guide surfaces.
  • This double centering function can significantly reduce the risk of deviations at the drill bit, especially in deeper pile boreholes, which can reach depths of about 20 m to 100 m.
  • the conveyor is designed as a drilling bucket.
  • the double centering according to the invention is particularly useful in a drilling bucket, as it is guided only over its relatively short length of 1 m to 3 m at the borehole wall. Otherwise, the guide takes place over the drill pipe wall spaced from the borehole wall.
  • a drill bucket if at least one opening with a closable lid is present on its underside and the edge with the cutting teeth is arranged at the opening.
  • the soil material released by the cutting teeth is conveyed directly into the interior of the drilling bucket.
  • the bucket can be closed when it is filled with soil and removed from the well for emptying. Thus, no soil material can fall back into the hole.
  • the at least two mutually spaced cutting edges are integrally formed as a drill bit. Since the drill bit is intended for directional guiding the pile boring tool, act on these very large forces. So it is advantageous to form these cutting edges in one piece to the occurring To be able to process forces better. In soils where these forces are not particularly high, however, three or four cutting edges can also be used.
  • a particularly simple closing of the opening of the drilling bucket can be achieved in that the drill bit is firmly connected to the lid and that the cover is rotatably mounted relative to the drilling bucket.
  • the rotatable connection of the lid with respect to the drilling bucket is designed so that when the pile boring tool is actively rotated in the ground, so in a certain direction of rotation, the lid opens the opening of the drilling bucket by the rotational movement.
  • the pile boring tool is rotated in the opposite direction, the cover slides over the hole in the drilling bucket and closes it.
  • Another pile boring tool according to the invention is characterized in that the conveyor has at least one coil which is attached to the center pipe.
  • the use of such a conveyor coil as a conveyor has the advantage that it can also be drilled continuously.
  • the removed soil material is conveyed upwards via the one or more spirals.
  • a support suspension may be introduced into the wellbore. It is also possible to introduce a settable suspension into the borehole through this center pipe in order to fill the borehole with the aid of this suspension and then to bind the suspension by further means in order to create a solid body in the pile borehole.
  • the drill bit is releasably secured in a receptacle at the lower end of the center tube.
  • the drill bit can be replaced individually in case of damage.
  • the recording of the drill bit can be designed as desired.
  • the receptacle polygon in particular square, is formed.
  • the torque of the rotary movement of the pile boring tool is transferred particularly well to the drill bit.
  • a particularly advantageous embodiment of the pile boring tool according to the invention has at the top a connecting device for releasably connecting to a drill pipe. Through this drill string, which may have further screw elements, the torque is transmitted to the pile boring tool.
  • the advantage of a detachable connection is the fact that both the drill pipe as well as the pile boring tool can be used separately or together with other facilities.
  • a boring device with a mast, a rotary drive arranged thereon and a drill pipe, which is driven in rotation by means of the rotary drive are furthermore provided.
  • These devices are therefore expedient so that when creating a pile borehole great depths can be achieved and also the diameter of these pile bores can be chosen to be relatively large.
  • the drill rig with the mast serves to further stabilize the direction of the pile boring tool.
  • FIG. 1 shows a perspective side view of a pile boring tool 1 according to the invention in an embodiment with drilling bucket 2.
  • a center tube 20 which is arranged coaxially to the drilling axis, a radial torque is transmitted to the pile boring tool 1.
  • four cutting teeth 3 are arranged to release the soil in series.
  • the dissolved material can enter the drilling bucket 2.
  • the drilling bucket 2 is filled with sufficient material, it is closed by means of a rotatable cover 4.
  • the lid 4 By the rotatable mounting of the lid 4, which is firmly connected to a drill bit 5, this can be done very easily.
  • the lid 4 is rotated in front of the opening 11 of the drilling bucket 2. This ensures that the cleared material can no longer fall back from the bucket 2 into the borehole.
  • the cylindrical drilling bucket 2 has on its upper side an angular center tube 20, which serves for connection to a drill string.
  • the center tube 20 may extend through the drilling bucket 2, such as to introduce a suspension into the wellbore. In the present embodiment, it is designed as a short pipe socket.
  • the drill bit 5 is releasably secured to the lower end of the pile boring tool. It sits in a tubular receptacle 10, which may be part of the center tube 20. This receptacle 10 and the drill bit 5 located therein are releasably connected by a transversely locking bolt 9.
  • FIG. 1 Another embodiment of the pile boring tool according to the invention is shown in FIG.
  • the pile boring tool 1 is provided with a helix 21.
  • This helix 21 is welded to the center tube 20. Together they form a so-called conveyor screw.
  • the broken out by the cutting teeth 3 material is transported in the screw conveyor in the direction of the surface.
  • the formed on the center tube 20 connecting device 22 can be seen, which serves for connecting the pile boring tool 1 with the drill string, not shown.
  • the drill string is provided with a feed line for the suspension.
  • the attachment of the drill bit 5 is performed in the same manner as in the first embodiment.
  • the drill bit 5 is fixed in the receptacle 10.
  • This embodiment of the pile boring tool 1 according to the invention is particularly suitable for non-aqueous soils.
  • Fig. 3 and Fig. 4 show side views of the drill bit 5 of the pile boring tool 1 according to the invention.
  • the one-piece design of the cutting edges 31 can be seen.
  • the quadrangular shape of the drill head 5 in the area is introduced into the receptacle 10 is shown. Due to the detachable attachment of the drill head 5 on pile boring tool 1, it is particularly easy to replace this drill head 5.
  • the pile boring tool 1 can be adapted particularly well to the soil properties with different designs of drill heads 5.
  • the drill bit 5 has a continuous bore 32 in the region which is provided for insertion into the receptacle 10.
  • the receptacle also has a bore. These two holes are arranged so that a locking bolt 9 can be pushed through for fastening the drill bit 5 through both holes.
  • a shoulder 34 between the cutting edges 31 and provided for insertion into the receptacle 10 quadrangular body with rounded corners serves a particularly good positioning of the drill bit 5 in the receptacle 10.
  • the drill bit 5 has at the cutting teeth 31 at the lower end in each case a long outer edge 35 and a short inner edge 36.
  • the long outer edge 35 is inclined outwardly from the axis of rotation of the drill bit 5. This promotes a particularly good guidance of the drill bit 5 and thus also of the entire pile boring tool 1.
  • the short inner edges 36 which are inclined inwards to the axis of rotation, cut out a bottom mandrel which effects the second centering function.
  • the bottom mandrel extends to the edge 33.
  • the bottom mandrel is machined by this edge 33 at a drilling required for drilling rotation of the pile boring tool to allow further penetration of the pile boring tool 1 in the ground.
  • the illustrated in Fig. 5 embodiment of a pile boring tool 1 has a second coil 41.
  • This second coil 41 is also welded to the central tube 20 as the first coil 21.
  • the pile boring tool 1 now has two edges 8, 44, on which cutting teeth 3 are fixed for removing the soil material. In the embodiment shown here, these cutting teeth are mounted in a curved line on the edge.
  • the use of two edges 8, 44 with cutting teeth mounted there has the advantage that the pile boring tool 1 is subject to a more symmetrical loading during drilling. This symmetrical loading of the pile boring tool 1 as well as the drill bit 5 reduces the deviation of the pile boring tool 1 from the desired drilling direction. In order to achieve particularly good compliance with the desired direction of drilling, an additional leading edge 45 is attached to the end of the spindle.
  • second coil 42 is a three-quarter coil. However, this is sufficient for generating a symmetrical load of pile boring tool 1.
  • a holding lug 42 is attached. This holding lug 42 serves to transport the pile boring tool 1, if this is not attached to the drill string.
  • connecting holes 43 are visible. On the one hand, these connecting holes 43 serve to connect the connecting device 22 to the drill pipe in a force-locking manner. This can be done for example by further locking bolts.
  • the connection holes 43 on the angular connection device 22 can also have the task of enabling a connection for a feed of suspension into the center tube 20. This suspension can then emerge, for example, in the region of the drill bit 5 through outlet openings from the center tube 20.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Structural Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Earth Drilling (AREA)
  • Piles And Underground Anchors (AREA)
  • Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
EP04022732A 2004-09-23 2004-09-23 Appareil de forage pour pieu Withdrawn EP1640507A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP04022732A EP1640507A1 (fr) 2004-09-23 2004-09-23 Appareil de forage pour pieu
US11/206,078 US20060060386A1 (en) 2004-09-23 2005-08-18 Pile boring tool for producing a pile bore
RU2005127655/03A RU2327024C2 (ru) 2004-09-23 2005-08-29 Буровой инструмент для проходки скважин под фундаментные сваи и буровая установка
SG200505670A SG121098A1 (en) 2004-09-23 2005-09-07 Pile boring tool for producing a pile bore
JP2005274895A JP4031496B2 (ja) 2004-09-23 2005-09-22 杭用穴を形成する杭用ボーリング機械及びボーリング装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04022732A EP1640507A1 (fr) 2004-09-23 2004-09-23 Appareil de forage pour pieu

Publications (1)

Publication Number Publication Date
EP1640507A1 true EP1640507A1 (fr) 2006-03-29

Family

ID=34926691

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04022732A Withdrawn EP1640507A1 (fr) 2004-09-23 2004-09-23 Appareil de forage pour pieu

Country Status (5)

Country Link
US (1) US20060060386A1 (fr)
EP (1) EP1640507A1 (fr)
JP (1) JP4031496B2 (fr)
RU (1) RU2327024C2 (fr)
SG (1) SG121098A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1990167A1 (fr) * 2007-05-07 2008-11-12 BauRent AG central Procédé et tête de fraisage destinés au traitement de têtes de pieux
EP2696027A1 (fr) 2012-08-06 2014-02-12 Bauer Spezialtiefbau GmbH Seau de forage et procédé de forage d'un trou de forage
EP2740882A1 (fr) 2012-12-04 2014-06-11 Bauer Spezialtiefbau GmbH Dispositif de forage et procédé de création d'un trou de forage

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1895090B1 (fr) * 2006-08-23 2008-10-15 BAUER Maschinen GmbH Procédé et dispositif de réalisation d'un trou de forage dans le sol
US7748479B2 (en) * 2008-05-29 2010-07-06 Barbera James S Box gusseted earth auger
US20120114427A1 (en) * 2010-11-04 2012-05-10 Dan Allen Soil Mixing System
ES2525921T3 (es) * 2012-08-13 2015-01-02 Bauer Spezialtiefbau Gmbh Procedimiento y dispositivo para producir y medir una perforación
EP3280846B1 (fr) * 2015-04-09 2020-07-29 McMillan, Jaron Lyell Accessoire à dent pour foret et foret équipé de celui-ci
CN105888535B (zh) * 2016-06-27 2017-12-15 秦孝成 一种旋转打井机
EP3287588B1 (fr) * 2016-08-24 2019-05-22 BAUER Maschinen GmbH Machine de travail et procédé destiné au travail d'un sol
CA2946944C (fr) * 2016-10-28 2022-03-22 Chelsea Pasch Appareillage de tariere integree destine a des evaluations archeologiques et methode d'utilisation associee
CN107605408B (zh) * 2017-10-30 2019-11-12 陕西隆极机械设备有限公司 用于硬质岩土层钻进与灌注一次完成的桩机钻头
CN113323577B (zh) * 2021-06-02 2024-06-25 成都四海岩土工程有限公司 一种旋挖方桩钻具

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GB774353A (en) * 1954-10-26 1957-05-08 Leon Edmond Crapez Improvements in or relating to excavating mechanisms
US3529428A (en) * 1968-04-17 1970-09-22 Foundation Services Inc Flow control device for hollowshafted auger
JPS6047116A (ja) * 1983-08-24 1985-03-14 Marutoku Kigyo:Kk 杭孔造成工法
DE4132314C1 (en) 1991-09-27 1992-12-17 Ing. G. Klemm, Bohrtechnik Gmbh, 5962 Drolshagen, De Vehicle mounted piling drill with mast - on which travels carriage with rotary head and tool duct laterally offset w.r.t.carriage guideway
DE4209854C1 (en) 1992-03-26 1993-07-22 Spezialtiefbau Ferdinand Aufschlaeger Gmbh, 8346 Simbach, De Stripper for earth auger for excavator - incorporates spring blade between turns of spiral, moving axially as spiral rotates
DE19517414A1 (de) * 1995-03-03 1996-09-12 Bilfinger Berger Bau Abbruchverfahren
FR2832438A1 (fr) * 2001-11-20 2003-05-23 Durmeyer Entrp Travaux Publics Tariere pour la realisation de trous fores et/ou betonnes et procedes mettant en oeuvre ladite tariere

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB774353A (en) * 1954-10-26 1957-05-08 Leon Edmond Crapez Improvements in or relating to excavating mechanisms
US3529428A (en) * 1968-04-17 1970-09-22 Foundation Services Inc Flow control device for hollowshafted auger
JPS6047116A (ja) * 1983-08-24 1985-03-14 Marutoku Kigyo:Kk 杭孔造成工法
DE4132314C1 (en) 1991-09-27 1992-12-17 Ing. G. Klemm, Bohrtechnik Gmbh, 5962 Drolshagen, De Vehicle mounted piling drill with mast - on which travels carriage with rotary head and tool duct laterally offset w.r.t.carriage guideway
DE4209854C1 (en) 1992-03-26 1993-07-22 Spezialtiefbau Ferdinand Aufschlaeger Gmbh, 8346 Simbach, De Stripper for earth auger for excavator - incorporates spring blade between turns of spiral, moving axially as spiral rotates
DE19517414A1 (de) * 1995-03-03 1996-09-12 Bilfinger Berger Bau Abbruchverfahren
FR2832438A1 (fr) * 2001-11-20 2003-05-23 Durmeyer Entrp Travaux Publics Tariere pour la realisation de trous fores et/ou betonnes et procedes mettant en oeuvre ladite tariere

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1990167A1 (fr) * 2007-05-07 2008-11-12 BauRent AG central Procédé et tête de fraisage destinés au traitement de têtes de pieux
WO2008135365A1 (fr) * 2007-05-07 2008-11-13 Baurent Ag Central Tête de fraisage et procédé d'usinage de têtes de pile
US8118370B2 (en) 2007-05-07 2012-02-21 Baurent Ag Central Milling head and method for machining pile heads
EP2696027A1 (fr) 2012-08-06 2014-02-12 Bauer Spezialtiefbau GmbH Seau de forage et procédé de forage d'un trou de forage
US9567806B2 (en) 2012-08-06 2017-02-14 Bauer Spezialtiefbau Gmbh Drilling bucket and method for drilling a bore hole
EP2740882A1 (fr) 2012-12-04 2014-06-11 Bauer Spezialtiefbau GmbH Dispositif de forage et procédé de création d'un trou de forage
US9376880B2 (en) 2012-12-04 2016-06-28 Bauer Maschinen Gmbh Drilling device and method for producing a borehole

Also Published As

Publication number Publication date
RU2005127655A (ru) 2007-03-10
US20060060386A1 (en) 2006-03-23
JP2006090120A (ja) 2006-04-06
SG121098A1 (en) 2006-04-26
RU2327024C2 (ru) 2008-06-20
JP4031496B2 (ja) 2008-01-09

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