EP2836680A2 - Procédé de forage de trous dans de la terre ou de la pierre et de fixation d'un élément d'ancrage dans un trou de forage et dispositif associé - Google Patents

Procédé de forage de trous dans de la terre ou de la pierre et de fixation d'un élément d'ancrage dans un trou de forage et dispositif associé

Info

Publication number
EP2836680A2
EP2836680A2 EP13720746.0A EP13720746A EP2836680A2 EP 2836680 A2 EP2836680 A2 EP 2836680A2 EP 13720746 A EP13720746 A EP 13720746A EP 2836680 A2 EP2836680 A2 EP 2836680A2
Authority
EP
European Patent Office
Prior art keywords
borehole
drill
anchor rod
anchor
expansion element
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
EP13720746.0A
Other languages
German (de)
English (en)
Other versions
EP2836680B1 (fr
Inventor
Karl BÖHM
Walter Karpellus
Wolfgang Dolsak
Dieter GLANTSCHNEGG
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.)
Dywidag Systems International GmbH Austria
Dywidag Systems International GmbH
Original Assignee
Dywidag Systems International GmbH Austria
Dywidag Systems International 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 Dywidag Systems International GmbH Austria, Dywidag Systems International GmbH filed Critical Dywidag Systems International GmbH Austria
Priority to PL13720746T priority Critical patent/PL2836680T3/pl
Publication of EP2836680A2 publication Critical patent/EP2836680A2/fr
Application granted granted Critical
Publication of EP2836680B1 publication Critical patent/EP2836680B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • E21D21/008—Anchoring or tensioning means
    • 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
    • E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
    • E21B23/01—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for anchoring the tools or the like
    • 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
    • E02D5/74—Means for anchoring structural elements or bulkheads
    • E02D5/80—Ground anchors
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D20/00—Setting anchoring-bolts
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D20/00—Setting anchoring-bolts
    • E21D20/003—Machines for drilling anchor holes and setting anchor bolts
    • 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
    • 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
    • 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
    • E02D5/74—Means for anchoring structural elements or bulkheads
    • E02D5/80—Ground anchors
    • E02D5/805—Ground anchors with deformable anchoring members

Definitions

  • the present invention relates to a method for drilling holes in soil material and for anchoring an anchor in a wellbore, wherein an expansion element fixed to a drill collar or anchor rod and a aufweitendes, in particular sleeve-shaped expansion element is provided with the drill bit with a drill or anchor rod simultaneously with the formation of the borehole in the soil or rock material, in particular by a rotating and beating or rotating drilling, the expansion element after completion of the Borehole is expanded by retraction of the drill or anchor rod and the expansion element disposed thereon in the interior of the expansion element in abutment against the borehole wall and secured the drill or anchor rod at its end projecting from the hole with an anchor plate on a borehole outside will, as well a device for drilling holes in soil material and for fixing an anchor in a borehole, comprising a drill bit fixed to a drill or anchor rod and an expansion element fixed to the drill or anchor rod and an expandable, in particular sleeve-shaped Spreizele- ment, wherein on the drill or anchor rod at the end
  • the introduced anchor is often finally determined by a subsequent introduction of a curable suspension, such as cement milk, in the borehole.
  • a curable suspension such as cement milk
  • the anchoring or expansion of the spreader is here, as described for example in AT-PS 409 785, by a retraction of An expansion rod fixed to an anchor rod or by retraction of an expansion element in an expansion sleeve, after which the expansion sleeve is brought into abutment against the borehole wall reached.
  • it is necessary for the completion of the borehole to cut off the projecting length of an anchor rod by retracting it from the borehole, and subsequently to attach and anchor an anchor plate to the free end of the boring bar in a separate operation.
  • either a further determination of the anchor can be made by introducing a curable suspension or the anchorage formed by the spreading of the expansion element into the mountain interior or the widening of the expansion element to the borehole wall is completed.
  • the present invention now seeks to provide a method for drilling holes in soil material and for securing an anchor in a borehole as well as a device therefor, which succeeds in a single operation all
  • the inventive method is characterized in that the drill or anchor rod is acted upon by the expansion of the expansion element by a rotating movement in the direction of the borehole interior to a stop against the Bohrlchsnnere and that the drill or anchor rod through clamping the Ankerpiaite mittete a trained as a neck element for a Einbringvor- direction nut is fixed to the borehole exterior.
  • the inventive method is further developed so that the drill or anchor rod after the expansion of the expansion by an application is introduced into the borehole interior until fracture of a shear pin projecting into or passing through the boring or anchor rod and projecting into a recess of the expansion element.
  • the drill or anchor rod After expanding the expansion element by the retraction of the drill or anchor rod and the introduction of the expansion element in the expansion element, the drill or anchor rod is held in the interior of the expansion element by a radial compressive stress exploited by the expansion element, so that in a recent attempt To turn the drill rod, this movement is much more difficult to perform than the original or bouncing movement of the drill or anchor rod for the formation of the wellbore.
  • this is performed so that the trained as a threaded rod drill or anchor rod for applying the shear pin is applied exclusively rotating.
  • Such a procedure ensures that the expansion element is not unintentionally driven out of the interior of the expansion element by an optionally excessive impact stress, whereby the anchoring would be loosened or rendered useless.
  • the anchor plate is braced by the exclusively rotating acting on the Bohr- or anchor rod fixed by an internal thread nut on the Bohrlochoter- ren, it is possible by the exclusively rotating applying the
  • it is therefore unnecessary not only cut off the anchor rod, but it also succeeds in a single process step, all elements that are required for a determination of an anchor in soil or Felsmaterialmateriai introduce or set.
  • an apparatus for drilling holes in soil or rock material and for fixing an anchor in the wellbore is further characterized in that the expansion element is formed at its end facing the well inside with at least one recess which cooperates with at least one engaging in this recess, projecting beyond the outer contour of the drill or anchor rod shear pin.
  • the expansion element is formed at its end facing the bore hole inside with at least one recess which cooperates with at least one engaging in this recess on the outer contour of the drill or anchor rod projecting shear pin, it succeeds on the one hand, the expander element during the retraction of Bohr or retract anchor rod securely into the interior of the expansion element or carry on the other hand, in a renewed introduction of the drill or anchor rod in the interior of the well by simply turning the shear pin exclusively the boring bar are introduced into the interior and the expansion element is held in a secure bond with the expansion element and thus ensures anchoring of the anchor to the borehole wall.
  • the drill or anchor rod is designed as a threaded rod and the threaded rod cooperates with an internal thread of the expander, manages the movement of the retraction of the drill or anchor rod and the renewed screwing the same in the Bohriochsnnere even more reliable form, since an unintentional displacement of the expander on the boring bar is held up with certainty.
  • the thread of the expander extends over a portion of the length of the expander, it is in particular to keep the wedge-shaped tapered parts of the expander free of a thread and thus not unnecessarily further weaken and still safe Stop the expansion element to the anchor rod to provide.
  • the spreader is designed as a spring sleeve, which has a at least over a part in the length extending slot.
  • the device is designed so that the drill or anchor rod interacts with the insertion device for the drill or anchor rod via a nut for fixing the anchor plate, on the one hand geiingt, all for To introduce the formation of an anchorage required parts in one step and on the other hand to achieve a minimization required for the placement of an anchor elements.
  • a nut is, as corresponds to a development of the invention, essentially characterized in that it has an inner and an outer thread.
  • the inventive device is developed to the effect that in a conventional manner on the drill or anchor rod with a drill or anchor rod pressed stop sleeve is provided for the expansion element.
  • a reliable spreading of the expansion element and thus a secure system is ensured at the borehole inner wall.
  • Fig. 2 is a plan view of a modified variant of the apparatus of Fig. 1
  • Fig. 3 is a schematic view partly in section of the apparatus of Fig. 2 in the fixed state of the borehole wall, and
  • Fig. 4 is an enlarged sectional view of the borehole closure.
  • Fig. 1 denotes a drill or anchor rod, at whose directed to a bore hole interior end 15 a drill bit 2 is set to be inextricably.
  • the drill or anchor rod 1 is in this case formed over its entire length as a threaded rod on which a widening element 3 is set so that the recesses formed in the expansion element 3 4 a over an outer circumference of Bohrz. Anchor rod 1 projecting shear pin 5 overlap.
  • the expansion elements 3 can be formed here either entirely or at least partially in their inner circumference, which is not apparent in the drawing, with a thread cooperating with the thread 6 of the drill or anchor rod 1. Such a design ensures captive holding the expansion element 3 at its selected position and in particular prevents unintentional tearing of the shear pin fifth
  • the spreader 7 is in this case designed so that the longitudinal contactor 8 extends only over part of the length of the expansion element 7 and that the borehole wall directed part of the expansion element 7 is formed with a kind of toothing 10.
  • the toothing 10 is provided here for a better engagement in the borehole wall.
  • the drill rod 1 At its end facing the borehole exterior, the drill rod 1 with a
  • Closure element 11 for the borehole an applied to the closure element 11 anchor plate 12 and a nut 13, which is provided as a projection element for a schematically indicated insertion device 14, provided.
  • the closure element 1 1 is in this case in the form of a cone, which tapers to Bohrlochin-neren to seal the well formed safely and reliably.
  • the kerplatte 12 may be a conventional anchor plate 12, which is brought by a pressure load from the outside, for example, on a tunnel wall in abutment.
  • the nut 13 formed as a projection element for the introduction device 14 can here be embodied as a nut 13 with both an internal thread and an external thread in order to be guided reliably and reliably on the anchor rod 1 on the one hand, and a secure engagement of the introduction device 14 on the other hand to ensure on the outer surface of the nut 13.
  • the reference symbols of FIG. 1 are retained as far as possible.
  • FIG. 2 differs from that of FIG. 1 only in that the expansion element 7 is designed as a spring sleeve formed with a continuous slot 8. Furthermore, the expansion element 7 designed as a spring sleeve has no structuring or contouring on its outer circumference.
  • FIG. 3 which shows the device according to FIG. 2 in the state clamped in the borehole interior 15 in abutment with the borehole wall
  • the reference numerals of FIGS. 1 and 2 are retained.
  • the illustration of FIG. 3 is hereby removed that after retraction of the expansion element 3 in the expansion element 7 and a renewed introduction into the wellbore, the drill bit 1 is in contact with the Bohriochinneren 15.
  • the drill or anchor rod 1 was withdrawn together with the drill bit 2 and the expansion element 3 in the interior of the expansion element 7, wherein an axial displacement in the direction of the borehole outer of the expansion element 7 by the provision of the pressed with the anchor rod 1 Sleeve 9 is prevented.
  • the expansion element 7 By introducing the expansion element 3, the expansion element 7 is widened until it is in abutment with the borehole wall, which is indicated schematically at 16. After completion of the Aufwettvorgangs the drill pipe 1 is acted upon by a renewed application, in particular rotational loading by means of a not shown in FIG. 3, introduction device 14 which engages the nut 13, in turn towards the Bohriochinneren 15. Due to the forces acting in the radial direction of the expansion element 7 on the expander element 3, a rotation of the expander element 3 in the interior is now prevented during this rotary loading. Ren of the expansion element 7 prevents and by the rotating action on the drill rod 1 only in Fig.
  • Fig. 4 is a sectional view, partially in the perspective of a possible variant of a borehole closure 1 1 shown.
  • the borehole closure 1 1 is in this case supported by internal thread 17 on the drill or anchor rod 1 to a rotating movement and has a diameter which increases in the direction of the borehole outer due to the conical design of the BohriochverInstitutes 1 1.
  • it is not only possible to form a borehole, but also to secure this against inadvertent leakage of material or unintentional leakage of possibly simultaneously with the formation of the anchoring to be introduced, hardening material, such as cement slurry.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Paleontology (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Piles And Underground Anchors (AREA)
  • Mechanical Engineering (AREA)

Abstract

L'invention concerne un procédé de forage de trous dans de la terre ou de la pierre et de fixation d'un élément d'ancrage dans un trou de forage. Selon ce procédé, un élément d'élargissement (3) fixé sur une tige de forage ou d'ancrage (1) ainsi qu'un élément d'écartement (7) à élargir, notamment en forme de douille, sont introduits avec la tige de forage ou d'ancrage (1) munie d'une couronne de forage (2), simultanément à la formation du trou de forage, dans la terre ou la pierre, notamment par forage rotatif et percutant ou par forage rotatif, l'élément d'écartement est élargi, après l'achèvement du trou de forage, par retrait de la tige de forage ou d'ancrage (1) et de l'élément d'élargissement (3), monté sur cette dernière, à l'intérieur de l'élément d'écartement (7) en appui sur la paroi du trou de forage, et la tige de forage ou d'ancrage (1) est fixée à son extrémité faisant saillie du trou de forage à une plaque d'ancrage (12) sur un côté extérieur du trou de forage. Selon l'invention, la tige de forage ou d'ancrage (1) est sollicitée, après l'élargissement de l'élément d'écartement (7), par un mouvement de rotation en direction de l'intérieur (15) du trou de forage jusqu'à ce qu'elle vienne en butée contre l'intérieur (15) du trou de forage et la tige de forage ou d'ancrage (1) est fixée à l'extérieur du trou de forage par serrage de la plaque d'ancrage (12) au moyen d'un écrou (13) se présentant sous la forme d'un élément rapporté destiné à un dispositif d'introduction (14). L'invention concerne également un dispositif associé.
EP13720746.0A 2012-04-12 2013-04-03 Procédé de forage de trous dans de la terre ou de la pierre et de fixation d'un élément d'ancrage dans un trou de forage et dispositif associé Active EP2836680B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL13720746T PL2836680T3 (pl) 2012-04-12 2013-04-03 Sposób wiercenia otworów w materiale ziemnym bądź skalnym i ustalania kotwy w wierconym otworze oraz urządzenie do tego sposobu

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATGM138/2012U AT13162U1 (de) 2012-04-12 2012-04-12 Verfahren zum Bohren von Löchern in Boden- bzw. Gesteinsmaterial und zum Festlegen eines Ankers in einem Bohrloch sowie Vorrichtung hierfür
PCT/AT2013/000055 WO2013152366A2 (fr) 2012-04-12 2013-04-03 Procédé de forage de trous dans de la terre ou de la pierre et de fixation d'un élément d'ancrage dans un trou de forage et dispositif associé

Publications (2)

Publication Number Publication Date
EP2836680A2 true EP2836680A2 (fr) 2015-02-18
EP2836680B1 EP2836680B1 (fr) 2016-09-28

Family

ID=48741813

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13720746.0A Active EP2836680B1 (fr) 2012-04-12 2013-04-03 Procédé de forage de trous dans de la terre ou de la pierre et de fixation d'un élément d'ancrage dans un trou de forage et dispositif associé

Country Status (8)

Country Link
US (1) US20150204152A1 (fr)
EP (1) EP2836680B1 (fr)
AT (1) AT13162U1 (fr)
AU (1) AU2013247379A1 (fr)
CA (1) CA2869235A1 (fr)
ES (1) ES2608764T3 (fr)
PL (1) PL2836680T3 (fr)
WO (1) WO2013152366A2 (fr)

Cited By (1)

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CN116876978A (zh) * 2023-08-03 2023-10-13 深蓝(天津)智能制造有限责任公司 一种井下管柱电控钻孔工具

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CA2957748C (fr) 2017-02-13 2018-05-01 Lyle Kenneth Adams Joint de boulon a roche
CN107310060B (zh) * 2017-08-23 2019-03-12 鲁东大学 一种水钻开孔支架
ES2924623T3 (es) * 2018-05-03 2022-10-10 Epiroc Drilling Tools Ab Anclaje de roca híbrido autoperforante
CN108442956A (zh) * 2018-05-14 2018-08-24 重庆大学 一种自适应压剪式锚杆
AU2019202151A1 (en) * 2018-08-31 2020-03-19 Jusand Nominees Pty Ltd Retainer device for a rock anchor, rock anchor system and associated installation method
US11732583B2 (en) * 2018-08-31 2023-08-22 Jusand Nominees Pty Ltd Retainer device for a rock anchor, rock anchor system and associated installation method
CN113445910B (zh) * 2021-07-29 2022-12-13 中国煤炭科工集团太原研究院有限公司 锚护装置及具有其的薄煤层锚杆钻车
CN113738302B (zh) * 2021-09-07 2022-06-17 中国矿业大学 一种用于煤层的裂隙注浆封堵装置
CN113982659B (zh) * 2021-09-25 2023-05-19 陕西省引汉济渭工程建设有限公司 一种隧道初期喷锚支护用锚杆安装设备
CN114961695B (zh) * 2022-05-31 2025-06-03 中国电建集团中南勘测设计研究院有限公司 一种钻孔综合监测装置及其安装方法
CN115716593B (zh) * 2022-08-10 2025-08-01 三一重型装备有限公司 锚盘上料装置和掘进设备
CN117345139B (zh) * 2023-12-05 2024-02-13 大庆金祥寓科技有限公司 射、解联作支撑锚

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CN116876978A (zh) * 2023-08-03 2023-10-13 深蓝(天津)智能制造有限责任公司 一种井下管柱电控钻孔工具
CN116876978B (zh) * 2023-08-03 2024-06-07 深蓝(天津)智能制造有限责任公司 一种井下管柱电控钻孔工具

Also Published As

Publication number Publication date
US20150204152A1 (en) 2015-07-23
CA2869235A1 (fr) 2013-10-17
ES2608764T3 (es) 2017-04-12
AU2013247379A1 (en) 2014-10-23
EP2836680B1 (fr) 2016-09-28
WO2013152366A2 (fr) 2013-10-17
WO2013152366A3 (fr) 2014-02-27
PL2836680T3 (pl) 2017-08-31
AT13162U1 (de) 2013-07-15

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