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WO2008128266A1 - Dispositif de création d'un trou de forage dans de la roche - Google Patents

Dispositif de création d'un trou de forage dans de la roche Download PDF

Info

Publication number
WO2008128266A1
WO2008128266A1 PCT/AT2008/000140 AT2008000140W WO2008128266A1 WO 2008128266 A1 WO2008128266 A1 WO 2008128266A1 AT 2008000140 W AT2008000140 W AT 2008000140W WO 2008128266 A1 WO2008128266 A1 WO 2008128266A1
Authority
WO
WIPO (PCT)
Prior art keywords
cladding tube
internal thread
drill string
slotted
drill bit
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.)
Ceased
Application number
PCT/AT2008/000140
Other languages
German (de)
English (en)
Inventor
Josef Mocivnik
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.)
Techmo Entwicklungs und Vertriebs GmbH
Original Assignee
Techmo Entwicklungs und Vertriebs 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 Techmo Entwicklungs und Vertriebs GmbH filed Critical Techmo Entwicklungs und Vertriebs GmbH
Priority to DE502008001049T priority Critical patent/DE502008001049D1/de
Priority to EP08733243A priority patent/EP2145078B1/fr
Priority to AT08733243T priority patent/ATE475779T1/de
Publication of WO2008128266A1 publication Critical patent/WO2008128266A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
    • E21D21/0026—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts
    • E21D21/0033—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts having a jacket or outer tube
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
    • B41J3/407—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
    • B41J3/4073—Printing on three-dimensional objects not being in sheet or web form, e.g. spherical or cubic objects
    • B41J3/40733—Printing on cylindrical or rotationally symmetrical objects, e. g. on bottles
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
    • E21D21/0026—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts
    • E21D21/0053—Anchoring-bolts in the form of lost drilling rods

Definitions

  • the invention relates to a device for producing a borehole in rock material, with a arranged on a drill string and the diameter of the drill string with its diameter exceeding drill bit, wherein the drill string is surrounded at least in the end behind the drill bit by a cladding tube, wherein a cladding tube at least one Slit part of its length is formed.
  • Devices of this type are known for example from AT 005644 Ul and from AT 007067 Ul.
  • the cladding tube provided with a longitudinal slot for the purpose of fixing an anchorage in a borehole in the radial direction expandable which widening on the one hand, in accordance with the AT 005644 Ul, by a rebound of the standing under a bias cladding tube after severing a slot bridging Welding point is effected and optionally reinforced by penetration of an intermediate element into the interior of the cladding tube, and on the other hand, according to AT 007067 Ul, alone by a shock stress of the cladding tube when driving a conical element is effected in the cladding tube.
  • the invention aims at a further development of the device described above in that setting an anchor can be done with great certainty and under particularly efficient expansion of a cladding tube.
  • impact loads which are always less easily controlled, should be avoided, and it should be feasible to achieve a widening of the cladding tube in a predetermined minimum extent feasible.
  • the slotted cladding tube has an internal thread inside over at least a portion of its slotted length and that between the internal thread and the drill bit a threaded driving mandrel is provided with an external thread, which is engageable with the internal thread, which Thread driving mandrel by means of the drill string to the engagement of its external thread with the internal thread retractable screwed into the internal thread, preferably via a positive connection to the drill string, and wherein at least one of the threads is conical.
  • a preferred embodiment is characterized in that the internal thread is provided on a threaded sleeve, which is connected to the slotted cladding tube, whereby it is possible to select the at least partially slotted cladding tube from the series production of the cladding tubes. It only has to be provided with a slot, but does not need to be provided with an internal thread. In this case, the threaded sleeve is inserted with internal thread in the otherwise standard manufactured cladding tube and connected thereto.
  • the slotted cladding is the first cladding behind the drill bit.
  • the threaded sleeve is advantageously also provided with a slot which corresponds to the slot of the cladding tube.
  • the slot of the slotted cladding tube extends in the axial direction of the drill string.
  • a manufacturing technology preferred variant is characterized in that the external thread is conical and in the internal thread of the cladding tube in a direction of rotation of the drill string opposite to the direction of rotation during drilling of the wellbore can be screwed.
  • the threaded driving mandrel comes when retracting the drill string with the drill bit in contact and is by means of the drill bit displaceable against the internal thread of Hüllrohes, wherein the drill bit at least partially penetrates into the cladding tube, with an end portion having an outer diameter which is slightly smaller than the inner diameter of the cladding tube.
  • the threaded sleeve is formed of plastic.
  • a further preferred embodiment is characterized in that the threaded friction sleeve has a closed, but radially expandable cross-section.
  • both threads are conical.
  • Fig. 1 illustrates a Schrägrissdarwolf the device with view in the interior thereof.
  • 2 and 4 show axial sectional views of the device in two different operating conditions and Figs. 3 and 5 represent to Figs. 2 and 4 are respectively end views.
  • a drill pipe 1 which is optionally composed of a plurality of sections lengthwise, has at its front end a drill bit 2.
  • the drill pipe 1 is surrounded in the end behind the drill bit 2 by a cladding tube 3, wherein if necessary depending on the depth of the hole several cladding tubes lying one behind the other, the drill string 1 can surround.
  • the design of the drill string 1 and of the cladding tube or of the cladding tubes for the purpose of removing the drill cuttings or for the purpose of supplying hardening material to be introduced into the drilled hole, such as cement mortar, can be carried out in the usual way.
  • the drill string is hollow to supply a rinse to remove the cuttings.
  • the slot 4 could also be arranged spirally, and it does not have to extend over the entire length of the cladding tube 3.
  • an internal thread 5 is provided, namely on a sleeve 6, which is also slotted according to the illustrated embodiment, wherein the slot 7 of the sleeve 6, which is hereinafter referred to as a threaded sleeve 6, is arranged in the same circumferential position as the slot 4 of the cladding tube 3.
  • the threaded sleeve 6 is connected to the cladding tube 3 non-rotatably.
  • the arrangement of the internal thread 5 not directly on the cladding tube 3, but on the threaded sleeve 6, has the advantage that the production of the cladding tube 3 is possible in a simple manner as a slotted tube.
  • a threaded driving mandrel 8 is provided, which has an external thread 9, which corresponds to the internal thread 5 of the threaded sleeve 6. At least one of the threads, so either the outer or the internal thread 9 or 5, or preferably both threads 9 and 5, are conical, so that it comes when screwing the Gewindedreibdorns 8 in the Gewindetreibhülse 6 to a widening of the cladding tube 3.
  • the threaded mandrel 8 has centrally a hexagon socket through opening 10, whereby the threaded driving mandrel 8 along the drill string 1, which at least in this section, on which the expandable sheath 3 is provided, a hexagonal cross-section 11 réelle utility, is displaceable, but with rotation of the drill string 1 is forced to turn around.
  • the threaded driving mandrel 8 is then screwed into the threaded sleeve 6, and an expansion of at least one section 15 of the cladding tube 3 occurs, as illustrated in FIG. 5.
  • the expansion of the cladding tube 3 can be precisely metered, with an increasing rotational resistance of the drill string 1 when screwing the Thread driving mandrel 8 in the Gewindetreibhülse 6 close to a sufficient anchoring of the cladding tube 3 in the borehole.
  • the threaded sleeve 6 does not necessarily have to be slotted; it may also have a closed circumference if its dimension and material still allow it to widen.
  • the threaded sleeve 6 may also be formed of plastic.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Manufacturing & Machinery (AREA)
  • Earth Drilling (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Abstract

L'invention concerne un dispositif de création d'un trou de forage dans de la roche, comportant une couronne de forage (2) disposée sur un train de tiges (1), dont le diamètre est supérieur au diamètre du train de tiges (1). Le train de tiges (1) est entouré par un tube de gainage (3) au moins dans la partie terminale, derrière la couronne de forage (2), un tube de gainage (3) présentant une fente au moins sur une partie de sa longueur. Pour l'élargissement du tube de gainage (3), le tube de gainage (3) présentant la fente est pourvu d'un filet intérieur (5) à l'intérieur, sur au moins une partie de sa longueur présentant la fente, et un mandrin d'entraînement de filet (8) pourvu d'un filet extérieur (9) est prévu entre le filet intérieur (5) et la couronne de forage (2), ledit mandrin pouvant être amené en prise avec le filet intérieur (5). Au moyen du train de tiges, le mandrin d'entraînement de filet (8) peut être vissé dans le filet intérieur (5) de façon extractible, jusqu'à encastrement de son filet extérieur (9) dans le filet intérieur (5), de préférence à l'aide d'une connexion par complémentarité de forme avec le train de tiges (1), au moins un des filets (5, 9) étant conçu de façon conique.
PCT/AT2008/000140 2007-04-19 2008-04-18 Dispositif de création d'un trou de forage dans de la roche Ceased WO2008128266A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE502008001049T DE502008001049D1 (de) 2007-04-19 2008-04-18 Vorrichtung zum herstellen eines bohrloches in gesteinsmaterial
EP08733243A EP2145078B1 (fr) 2007-04-19 2008-04-18 Dispositif de création d'un trou de forage dans la roche
AT08733243T ATE475779T1 (de) 2007-04-19 2008-04-18 Vorrichtung zum herstellen eines bohrloches in gesteinsmaterial

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0060507A AT505335B1 (de) 2007-04-19 2007-04-19 Vorrichtung zum herstellen eines bohrloches in gesteinsmaterial
ATA605/2007 2007-04-19

Publications (1)

Publication Number Publication Date
WO2008128266A1 true WO2008128266A1 (fr) 2008-10-30

Family

ID=39684246

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AT2008/000140 Ceased WO2008128266A1 (fr) 2007-04-19 2008-04-18 Dispositif de création d'un trou de forage dans de la roche

Country Status (4)

Country Link
EP (1) EP2145078B1 (fr)
AT (2) AT505335B1 (fr)
DE (1) DE502008001049D1 (fr)
WO (1) WO2008128266A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014005166A3 (fr) * 2012-07-06 2014-06-05 Dywidag-Systems International Gmbh Procédé et dispositif de formation de trous de forage et d'installation d'un ancrage dans un forage

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992009789A1 (fr) * 1990-11-28 1992-06-11 Tamrock Oy Boulon de roche
DE4443131A1 (de) * 1994-07-01 1996-01-04 Willich F Berg Bautechnik Gebirgsanker mit PUR-Schaum-Umhüllung
WO2003062599A1 (fr) * 2002-01-22 2003-07-31 Techmo Entwicklungs- Und Vertriebs Gmbh Boulons d'ancrage a elements expansibles
AT7067U1 (de) * 2002-04-05 2004-09-27 Techmo Entw & Vertriebs Gmbh Verfahren und vorrichtung zum bohren eines loches und zum festlegen einer verankerung in einem bohrloch

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992009789A1 (fr) * 1990-11-28 1992-06-11 Tamrock Oy Boulon de roche
DE4443131A1 (de) * 1994-07-01 1996-01-04 Willich F Berg Bautechnik Gebirgsanker mit PUR-Schaum-Umhüllung
WO2003062599A1 (fr) * 2002-01-22 2003-07-31 Techmo Entwicklungs- Und Vertriebs Gmbh Boulons d'ancrage a elements expansibles
AT7067U1 (de) * 2002-04-05 2004-09-27 Techmo Entw & Vertriebs Gmbh Verfahren und vorrichtung zum bohren eines loches und zum festlegen einer verankerung in einem bohrloch

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014005166A3 (fr) * 2012-07-06 2014-06-05 Dywidag-Systems International Gmbh Procédé et dispositif de formation de trous de forage et d'installation d'un ancrage dans un forage
AT526264A5 (de) * 2012-07-06 2023-11-15 Dywidag Systems Int Gmbh Verfahren und Vorrichtung zum Ausbilden von Bohrlöchern und Festlegen einer Verankerung in dem Bohrloch

Also Published As

Publication number Publication date
EP2145078B1 (fr) 2010-07-28
EP2145078A1 (fr) 2010-01-20
AT505335B1 (de) 2009-12-15
ATE475779T1 (de) 2010-08-15
DE502008001049D1 (de) 2010-09-09
AT505335A1 (de) 2008-12-15

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