EP1468167B1 - Gebirgsanker mit aufweitbaren elementen - Google Patents

Gebirgsanker mit aufweitbaren elementen Download PDF

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Publication number
EP1468167B1
EP1468167B1 EP03702186A EP03702186A EP1468167B1 EP 1468167 B1 EP1468167 B1 EP 1468167B1 EP 03702186 A EP03702186 A EP 03702186A EP 03702186 A EP03702186 A EP 03702186A EP 1468167 B1 EP1468167 B1 EP 1468167B1
Authority
EP
European Patent Office
Prior art keywords
expandable elements
expandable
rod assembly
elements
drill rod
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.)
Expired - Lifetime
Application number
EP03702186A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1468167A1 (de
Inventor
Josef Mocivnik
Karl BÖHM
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.)
Alwag Tunnelausbau GmbH
Techmo Entwicklungs und Vertriebs GmbH
Original Assignee
Alwag Tunnelausbau GmbH
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 Alwag Tunnelausbau GmbH, Techmo Entwicklungs und Vertriebs GmbH filed Critical Alwag Tunnelausbau GmbH
Priority to AT03702186T priority Critical patent/ATE307267T1/de
Publication of EP1468167A1 publication Critical patent/EP1468167A1/de
Application granted granted Critical
Publication of EP1468167B1 publication Critical patent/EP1468167B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E21D21/004—Bolts held in the borehole by friction all along their length, without additional fixing means

Definitions

  • the present invention relates to a method for drilling, in particular impact or rotary impact drilling, a hole in soil or rock material and to form an anchoring in the hole, whereby by introducing a drill bit is formed a borehole, wherein after Completion of the well in at least one in the essentially extending in the longitudinal direction of the bore Cavity of at least one expandable element of the drill string or at least one cavity of at least one connected to the drill string, expandable element for at least partial widening of the outer circumference of the or the inflatable element (e) charged with the fluid placed in contact with the borehole wall, a fluid under pressure becomes.
  • the invention further relates to a Device for drilling, in particular impact or rotary impact drilling, a hole in soil or rock material and for forming an anchoring, wherein by introducing a drill bit is formed a borehole, wherein the Drill pipe of the drilling device of at least one expandable Element having a substantially longitudinal direction the bore extending cavity for insertion a fluid under pressure for at least partial expansion formed on the outer periphery of the expandable member is and / or the drill pipe with at least one expandable Element each having at least one substantially extending in the longitudinal direction of the bore cavity for introducing a fluid under pressure to expand the Outside circumference is connected.
  • a lining in the borehole is made WO 98/21439 and WO 98/58132, during the Drilling operation, such as impact or rotary impact drilling, to introduce a cladding tube in the borehole, whereupon after completion of the hole, if necessary, part of Drill bit together with the drill pipe from the borehole is removed while the cladding tube remains in the borehole, so that subsequently by filling with a hardening Mass an anchor is formed in the borehole.
  • the drill pipe on its outer circumference with additional ribs and Grooves be formed so that when a whereabouts of the Drill pipe in the borehole and a subsequent backfilling a correspondingly good anchor effect can be achieved can.
  • a method and an apparatus of the aforementioned Type are, for example, WO 91/06713 or DE-A 40 24 869, referring to the implementation of special Drilling and injection operations is targeted.
  • the drilling tool with the drill pipe from the borehole to remove, followed by an anchor or a Anchor device is introduced into the wellbore, wherein for example, to EP-A 0 079 875, EP-B 0 047 727, EP-B 0 207 030, EP-B 0 016 742, EP-A 0 077 762, WO 97/31177, EP-A 0 112 316, WO 91/06713, DE-A 40 24 869, WO 00/75489, DE-A 31 11 673 or US Pat. No. 4,636,115.
  • a disadvantage of this known prior art is further the fact that in a first process step the borehole must be made, followed by removal of the drilling tool together with the drill pipe in another Process step, the anchor device in the optionally introduced a large length borehole then, subsequently widening the outer diameter the anchor device an attachment to the borehole wall to succeed. It is immediately obvious that not just for the two separate steps a correspondingly increased expenditure of time is required, but that optionally a subsequent Introducing such an anchor device with great length is associated with difficulties.
  • the present invention aims to provide a method and a device of the type mentioned to provide, with a simplified design and in particular reduced time spent immediately after completion of a well an education of a Anchoring, in particular for the stabilization of the surrounding Soil or rock material is possible.
  • a method of the beginning mentioned type essentially characterized in that over the circumference and / or the length of the manufactured Wellbore a plurality of separate, expandable Elements with cavities for widening the outer circumference is provided. Since after completion of the borehole at least one expandable by introducing a fluid Element brought into contact with the borehole wall ensures that in a single operation immediately after completion of the hole and in particular without removing the drilling device from the borehole Anchoring and stabilization of the surrounding soil or rock material is possible, the expandable Element can have a correspondingly large length and thus a reliable anchoring can be achieved.
  • the expandable elements For proper definition of the expandable elements to each other or to a central drill pipe as well to ensure proper expansion of the expandable elements is moreover preferably provided that a plurality of each having a cavity, expandable elements together or on a central drill pipe set, in particular over each a part of the length is welded. Because the expandable Elements in particular in the event that they are immediate form the drill pipe, accordingly resistant in particular of a metallic material have to be trained, it is understandable that accordingly large forces introduced to expand the expandable elements must be, so that a proper determination the elements to each other and / or to provide the drill string is.
  • a fluid for rinsing and / or cooling the Drill bit as well as possibly for the removal of degraded is that through the drill pipe or a conduit a fluid for cooling and / or rinsing the drill bit during the drilling process is introduced into the area of the drill bit, such as this a further preferred embodiment of the invention Method corresponds.
  • a plurality of expandable elements for training the drill string at least partially over their length with each other connected, in particular to adjoining Edge areas welded together is.
  • a plurality set by expandable elements in particular via a part of the length is welded, creating a secure Defining the expandable elements on the drill pipe during the drilling process can be achieved.
  • the drill string in a central or central position remains and thus a reliable anchoring effect is achievable.
  • the connecting elements the adjoining, expandable elements in particular Partially overlap by extensions and with the expandable Connected elements, in particular welded, are.
  • the expandable elements partially overarching Areas or extensions of the connecting elements hiebei serve for a proper definition of the expandable Elements on the connecting element and / or each other.
  • a plurality of expandable elements provided in this context according to a further preferred embodiment is proposed that in the circumferential direction at least three expandable elements for Training the drill pipe are provided or with a connected to the central drill pipe.
  • at least Three expandable elements can not be just to transfer to the formation of the bore on the drill bit Bring forces properly and reliably, but it is ensured during the expansion process, that a correspondingly central positioning of the armature and thus a uniform stabilization of the surrounding Soil or rock material can be achieved.
  • the expandable elements in a cross section normal to their longitudinal direction sickle-shaped are.
  • Such sickle-shaped pipe elements let yourself with simple tools with appropriate contour and Establish strength and enable subsequently a simple definition of each other or on a central Drill pipe and provide a favorable shape for the final widening at correspondingly lower, by the introduction of force to be introduced safely.
  • the expandable elements are essentially with radially outwardly extending or radially to outside projecting sub-areas connected or are fixed to a central drill pipe, according to a particularly preferred embodiment in this context it is proposed that the expandable elements in a normal to the longitudinal direction of the borehole extending plane have a star-shaped outline or define.
  • a fluid for cooling and / or rinsing the drill bit in the region of the drill bit can be introduced.
  • a drill string forming member For a proper definition of the drill bit on the A drill string forming member is further preferred provided that the drill bit by welding, screws or the like. On the drill pipe or the drill pipe forming, expandable elements is set.
  • FIG. 1 denotes a drilling device, wherein a schematic with 2 indicated drill bit on one of several Fixed items 3 and 4 existing drill pipe is, with the individual linkage parts 3 and 4 via a schematically connected with 5 indicated connecting element or are extended, with a training in detail in Fig. 3 is shown in more detail.
  • the linkage parts 3 and 4 are made of a plurality of expandable Elements formed or is a plurality of expandable elements provided around a central drill string, wherein a device not shown for Introduction of a drilling and impact energy into the drill bit 2 attacks at a designated 6 end.
  • Fig. 1 takes place after completion of the well an expansion of expandable elements in the dashed lines with 3 'and 4' indicated position over the circumference as well as over the length of the drilling device 1, so that by widening at least the outer periphery or the outer contour overall both a stable Anchoring of the drilling device 1 in not shown Borehole as well as a stabilization of surrounding Soil or rock material can be achieved.
  • Fig. 1 is further indicated that both in the area of Connecting element 5 and the end element 6 as well the determination of the linkage parts 3 and 4 on the drill bit. 2 in each case over a portion 7 a determination of the in the following figures shown in detail, expandable Elements or general linkage parts 3 and 4 to each other and the connecting element 5, the closure element. 6 and the drill bit 2 takes place, so that in these areas 7 a secure determination can be made, which also an expansion upon introduction of a fluid under high pressure, for example of at least 100 bar, can withstand the interior of the expandable elements and a total of a barrel or pillow-shaped outer contour 3 'and 4', respectively, after expansion to form the anchorage achieve.
  • a fluid under high pressure for example of at least 100 bar
  • FIG. 2 it can be seen that at a central drill pipe 8, which in turn with the Essentially associated with 2 designated drill bit Semicircular, expandable elements 9 are provided, wherein the expandable elements 9 with the drill pipe over again designated 7 areas in the area of the connection to the drill bit 2 as well as to a turn schematically set with 5 indicated connecting element, For example, are welded.
  • the connecting element 5 is indicated at 10 an inlet opening, about which, as in particular in the illustration according to Fig. 3 will be more apparent, an introduction fluid under pressure into the expandable element 9 possible so that after completion of the hole turn an expansion of the expandable elements 9 for training anchorage is achievable.
  • One first connecting element 11 is at a plurality of expandable Elements 12 fixed or welded in particular, wherein projections 13, the expandable elements 12th at least partially overlap, as in the Sectional view of FIG. 4a clearly visible.
  • the connecting element 11 has an internal thread 14, in which a second connecting element 15 via a corresponding External thread 16 is screwed, whereby also the second connecting element 15 with corresponding extensions 13 is formed, in turn expandable elements 12 at least partially overlap.
  • passages or Passage channels 17 formed, which on the one hand in the Cavities 18 of the expandable elements 12 open.
  • the Passage channels also open into a connecting channel or passage 19, which in a sleeve or sleeve-like element 20 is formed, wherein the Element 20 the area of connection of the connecting elements 11 and 15 surrounds or encloses.
  • FIG. 4 does not have a central drill pipe provided so that the drill pipe of three each sickle-like, expandable elements 12 is formed, wherein the expandable elements in the area of the connecting elements 11 or 15 with the overlapping partial areas 13 connected, in particular welded, as 22 each indicated in Fig. 4a and 4b. Furthermore are also the expandable elements 12 on more Welds 23 with each other at least over a partial area connected to their length.
  • Fig. 4 is further indicated that in between the Elements 12 remaining space an additional line 24 for introducing a fluid into the drill bit for Cooling or rinsing thereof is provided.
  • FIG. 4b In the illustration of FIG. 4b is indicated schematically, as in partial areas at a distance from the connecting elements 11 or 15 and in particular at a distance from the the expandable elements 12 partially overarching extensions 13 an expansion after introduction of a fluid under pressure in the 12 'or 12 "designated position possible becomes.
  • FIG. 4c it can be seen how in FIG a partial area at a greater distance from the connecting elements 11 or 15 after completion of the expansion process the flared elements 12 abut the borehole wall 25, wherein by providing three expandable elements 12 over the circumference of the well a correspondingly central or central positioning is achievable and thus also a correspondingly uniform introduction of forces into the surrounding soil or rock material 26 as well a uniform stabilization of the same is possible.
  • FIG. 5 In the schematic representations of FIG. 5 are more shown modified embodiments, wherein in the Training according to Fig. 5a at a central or central Drill 27 each two expandable elements 28 are provided are. Again, there are essentially crescent-shaped, expandable elements 28 use after completion the bore by introducing a fluid under Pressure an expansion and correspondingly reliable concern to the again designated 25 borehole wall and thus enable a reliable anchorage.
  • By providing of two expandable elements 28 distributed over the circumference is ensured after the expansion that the drill pipe 27 maintains its central or central positioning, so that in particular when providing a plurality of adjacent boreholes 25 a corresponding uniform anchoring and stabilization of the surrounding Soil or rock material over corresponding areas be achieved.
  • FIG. 5a Both in the embodiment of FIG. 5a as well as in the other, in Fig. 5 schematically indicated embodiments is like the previous embodiments provided that expandable elements with each other or on a central drill pipe at least over a partial area their length connected, in particular welded, are and that a widening each over a portion of the Length results in a barrel or pillow-like outer contour, as indicated schematically in Fig. 1.
  • An extension to achieve long drill lengths takes place again via corresponding fasteners, like this For example, schematically indicated in Fig. 3.
  • FIG. 5b there are two expandable Elements 29 use, but in contrast to the embodiment of FIG. 5a, a central drill pipe is not provided, so that the at least over Partitions interconnected, expandable elements 29, wherein a weld is indicated at 30, also the function of the drill string for introducing the Take on drilling or impact energy.
  • central drill pipe 31 use being over the circumference distributed three expandable elements 32 are provided, which similar to the embodiment of FIG. 4a after are formed outside projecting projections, and thus again a substantially star-shaped outer cross-section result.
  • the expandable elements takes place by the expandable elements a centering the drill string 31 already during the drilling process Plant on the borehole wall 25, whereupon after completion the drilling and introducing a fluid under pressure in the Cavities 18 of the expandable elements 32 centering is maintained and an investment in the borehole wall 25 achievable is.

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  • 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)
  • Earth Drilling (AREA)
  • Piles And Underground Anchors (AREA)
EP03702186A 2002-01-22 2003-01-21 Gebirgsanker mit aufweitbaren elementen Expired - Lifetime EP1468167B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT03702186T ATE307267T1 (de) 2002-01-22 2003-01-21 Gebirgsanker mit aufweitbaren elementen

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT0009702A AT412739B (de) 2002-01-22 2002-01-22 Verfahren und vorrichtung zum bohren eines loches in boden- oder gesteinsmaterial und zum ausbilden einer verankerung
AT972002 2002-01-22
PCT/AT2003/000019 WO2003062599A1 (de) 2002-01-22 2003-01-21 Gebirgsanker mit aufweitbaren elementen

Publications (2)

Publication Number Publication Date
EP1468167A1 EP1468167A1 (de) 2004-10-20
EP1468167B1 true EP1468167B1 (de) 2005-10-19

Family

ID=27587154

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03702186A Expired - Lifetime EP1468167B1 (de) 2002-01-22 2003-01-21 Gebirgsanker mit aufweitbaren elementen

Country Status (10)

Country Link
US (1) US7004686B2 (zh)
EP (1) EP1468167B1 (zh)
JP (1) JP2005515338A (zh)
AT (1) AT412739B (zh)
AU (1) AU2003205414B2 (zh)
CA (1) CA2473255C (zh)
DE (1) DE50301420D1 (zh)
TW (1) TW200302897A (zh)
WO (1) WO2003062599A1 (zh)
ZA (1) ZA200405365B (zh)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE526970C2 (sv) * 2003-11-13 2005-11-29 Atlas Copco Rock Drills Ab Självborrande bergbult
SE526972C2 (sv) * 2003-11-13 2005-11-29 Atlas Copco Rock Drills Ab Modulärt bergbultsystem
SE526971C2 (sv) * 2003-11-13 2005-11-29 Atlas Copco Rock Drills Ab Skarvbar självborrande bergbult
SE529459C2 (sv) * 2004-03-10 2007-08-14 Sandvik Intellectual Property Borrande apparatur
AT505335B1 (de) * 2007-04-19 2009-12-15 Techmo Entw & Vertriebs Gmbh Vorrichtung zum herstellen eines bohrloches in gesteinsmaterial
US9062547B2 (en) 2010-06-04 2015-06-23 Fci Holdings Delaware, Inc. Expandable bolt with shielded tip
EP3013504A4 (en) 2013-06-25 2017-03-15 Robert Cousineau Self-undercut anchor system
US9863248B2 (en) 2015-04-23 2018-01-09 Jason L. Moon Friction bolt
CN105221068A (zh) * 2015-11-10 2016-01-06 西南石油大学 利用冲击作用提高心部破岩效率的新型pdc钻头
CN110500060A (zh) * 2019-09-26 2019-11-26 中铁隧道局集团有限公司 一种分段前进式钻杆快速注浆装置、***和注浆方法
CN114810171B (zh) * 2022-03-30 2023-03-10 西南交通大学 一种端头可膨胀式锚杆

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Publication number Priority date Publication date Assignee Title
FR1368123A (fr) * 1963-01-28 1964-07-31 Ct Ex De Rech S Et D Etudes Du Procédé d'ancrage et dispositif d'ancrage amovible
US3349567A (en) * 1964-06-03 1967-10-31 John E Munn Mine roof support and method of providing same
USRE30929E (en) * 1977-09-28 1982-05-11 Collapsible tunnel liner section and method of lining a tunnel
SE427764B (sv) 1979-03-09 1983-05-02 Atlas Copco Ab Bergbultningsforfarande jemte rorformig bergbult
ZA811894B (en) * 1980-03-28 1982-04-28 R Thom An anchor bolt
NO159201C (no) 1980-09-08 1988-12-07 Atlas Copco Ab Fremgangsmaate ved bolting i fjell og kombinert ekspansjonsbolt og installasjonsanordning for samme.
US4636115A (en) 1980-11-10 1987-01-13 The Curators Of The University Of Missouri Expansion bolt and mine roof reinforcement therewith
SE8106165L (sv) 1981-10-19 1983-04-20 Atlas Copco Ab Forfarande for bergbultning och bergbult
SE436781B (sv) 1981-11-16 1985-01-21 Atlas Copco Ab Svellkropp
JPS5924030A (ja) * 1982-07-29 1984-02-07 Giken Seisakusho:Kk アンカ−
SE451268B (sv) 1982-12-21 1987-09-21 Atlas Copco Ab Svellkropp for i mark belegna konstruktioner
SE457894B (sv) * 1985-06-17 1989-02-06 Atlas Copco Ab Saett att stabilisera berg
BE1003914A3 (nl) * 1989-06-22 1992-07-14 Corstjens Helena Michel Werkwijze voor het vergroten van de doorgang van een pijp in de grond en daarbij gebruikte hogedrukslang.
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SE504605C2 (sv) 1996-02-21 1997-03-17 Atlas Copco Rock Drills Ab Skarvning av en rörformad bergbult
HRP970600B1 (en) 1996-11-12 2002-06-30 Techmo Entw & Vertriebs Gmbh Process and apparatus for drilling and covering a bore with a layer
AT408248B (de) 1997-06-18 2001-09-25 Techmo Entw & Vertriebs Gmbh Verfahren und vorrichtung zum bohren von löchern
SE512834C2 (sv) * 1999-06-04 2000-05-22 Atlas Copco Rock Drills Ab Rörformad bergbult

Also Published As

Publication number Publication date
CA2473255A1 (en) 2003-07-31
DE50301420D1 (de) 2006-03-02
WO2003062599A1 (de) 2003-07-31
EP1468167A1 (de) 2004-10-20
CA2473255C (en) 2010-04-20
JP2005515338A (ja) 2005-05-26
TW200302897A (en) 2003-08-16
AU2003205414B2 (en) 2007-12-13
ATA972002A (de) 2004-11-15
US20040231890A1 (en) 2004-11-25
AT412739B (de) 2005-06-27
ZA200405365B (en) 2005-03-22
US7004686B2 (en) 2006-02-28

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