EP1407115A1 - Verbindung einer ankerstange mit einem bohrgerät - Google Patents
Verbindung einer ankerstange mit einem bohrgerätInfo
- Publication number
- EP1407115A1 EP1407115A1 EP01274371A EP01274371A EP1407115A1 EP 1407115 A1 EP1407115 A1 EP 1407115A1 EP 01274371 A EP01274371 A EP 01274371A EP 01274371 A EP01274371 A EP 01274371A EP 1407115 A1 EP1407115 A1 EP 1407115A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- anchor rod
- section
- anchor
- transition sleeve
- anchoring 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.)
- Granted
Links
- 238000005553 drilling Methods 0.000 title abstract description 28
- 238000004873 anchoring Methods 0.000 title abstract 10
- 230000007704 transition Effects 0.000 claims description 33
- 238000003780 insertion Methods 0.000 claims description 5
- 230000037431 insertion Effects 0.000 claims description 5
- 230000008878 coupling Effects 0.000 abstract description 13
- 238000010168 coupling process Methods 0.000 abstract description 13
- 238000005859 coupling reaction Methods 0.000 abstract description 13
- 238000002347 injection Methods 0.000 abstract description 4
- 239000007924 injection Substances 0.000 abstract description 4
- 239000011435 rock Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 2
- 229910000760 Hardened steel Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
-
- 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/042—Threaded
- E21B17/0426—Threaded with a threaded cylindrical portion, e.g. for percussion rods
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/57—Distinct end coupler
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/57—Distinct end coupler
- Y10T403/5733—Plural opposed sockets
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/57—Distinct end coupler
- Y10T403/5741—Separate screw or pin-type connections
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/57—Distinct end coupler
- Y10T403/5746—Continuous thread
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/57—Distinct end coupler
- Y10T403/5761—Interrupted periphery, e.g., split or segmental, etc.
- Y10T403/5786—Split
Definitions
- the invention relates to a connection between an anchor rod and the drilling device of a device for setting self-drilling injection anchors.
- the anchor rods that make up the anchor system are connected to the drill head of a drilling rig. This connection is made via a transition sleeve into which one end of the anchor rod is screwed and which is coupled to the insertion end of the drilling device, for example by screwing on. A drill bit is screwed onto the front end of the first anchor rod. As the depth of the borehole progresses, the anchor rod is extended by screwing on connecting couplings and additional anchor rods until the total anchor length is reached.
- the release of the anchor rod from the transition sleeve on the drilling device has proven to be problematic in the prior art.
- the anchor rod becomes jammed in the transition sleeve that connects it to the drilling device, which leads to malfunctions, since a lot of force and time is required to loosen the screw connection between the anchor rod and the transition sleeve is.
- the reason for the frequently occurring jamming is that the non-heat-treated anchor rods have a lower hardness than boring rods that are always used in tempered quality.
- the transition sleeve which is also always remunerated the drill, as it is designed for multiple use, much harder than the anchor rods.
- anchor rods From US 4,332,502 A it is known for anchor rods to be connected to one another by connecting couplings to form thread-free sections at their ends.
- the anchor rods are connected to one another by connecting couplings which, in the area in which the anchor rods screwed into the connecting coupling abut one another with their unthreaded sections, have an inwardly projecting ring in which the unthreaded ends of the screws screwed into the transition sleeve Engage anchor rods.
- the invention is based on the object of designing the end of anchor rods received in the transition sleeve on the drill so that the described jamming does not occur.
- At least one end is the anchor rod according to the invention provided with a tapered section.
- This section which is provided on the anchor rod at least at its end received in the transition sleeve of the drilling device (screwed into it), can have a cylindrical outer surface and in turn have a chamfer on the end face.
- the inventive design of at least one end of the anchor rods results in a trouble-free loosening (unscrewing) of anchor rods from the transition sleeve, because when drilling anchors under the effect of the loads occurring during drilling, deformations of the end of an anchor rod received in the transition sleeve occur due to the free space between the inner surface of the transition sleeve and the smaller-diameter section of the end of the anchor rod cannot lead to the anchor rods being clamped in the transition sleeve.
- the screwing of the connection couplings onto the end of the last anchor rod protruding from the borehole is also problem-free, because there is play between the tapered end of the anchor rod and the inner surface of the connection coupling even when the end of the anchor rod has been deformed ,
- the advantage for the user of the connection according to the invention between the anchor rod and the drilling device is first of all that longer work interruptions are avoided, since the anchor rod can be easily detached from the transition sleeve, so that trouble-free operation is ensured.
- the solution to the problem according to the invention (avoiding jamming between the transition sleeve and anchor rod) is of considerable importance since the removal of a fault at a greater height is not a problem represents an insignificant security risk.
- FIG. 1 schematically shows a hammer drill during drilling
- FIG. 2 shows one end of a known anchor rod
- FIG. 3 shows the end of an anchor rod with a tapered end
- FIG. 4 shows in section an end of an anchor rod screwed into a transition sleeve.
- the drill hammer shown in FIG. 1 consists of a drilling device 1 which is advanced on a guide of the drilling mount 3 supported on the rock 2 in accordance with the drilling progress.
- the drive provided for this is not shown.
- an anchor rod 6 is screwed in via a transition sleeve 5, to which an anchor rod carrying a drill bit directly or, depending on the drilling progress, further anchor rods 6 are connected via connecting couplings 7.
- a flushing liquid can be introduced into the anchor rods 6 and, after completion of the bore for fixing the anchor, a (hydraulically) setting medium which, after hardening, fixes the anchor, which consists of the corresponding number of anchor rods ⁇ , in the borehole ,
- FIG. 2 shows one end of a known anchor rod 6, which has an external thread 9 due to the corresponding shaping of its wall.
- the end of the known anchor rod is provided with a 45 ° chamfer 11.
- At least one end is designed as shown in FIG. 3 and has a section 12 which has a diameter Ra which is reduced compared to the outer diameter (Rd) of the anchor rod 6 and which does not have an external thread 9.
- the free end of section 12 of anchor rod 6 with reduced diameter Ra can also be provided with a 45 ° chamfer 11.
- a corresponding configuration is possible for at least the end of the boring bar 8 screwed into the transition sleeve 5, but not mandatory, in particular if the boring bar 8 consists of hardened steel (like the transition sleeve 5).
- section 12 with a reduced diameter is arbitrary in itself, but will often be cylindrical in shape.
- section 15 can also be designed to taper conically towards the free end, the outer contour being inclined by no more than 20 degrees to the longitudinal axis of the anchor rod 6.
- the clear cross section of the ring rib 20 is essentially the same size as the clear cross section of the anchor rods 8.
- This free space 23 allows the tapered section 12 provided at the end of the anchor rod 6 to be plastically deformed without the anchor rod 6
- the end face 24 of the anchor rod 6 bears against the lateral annular surface 25 of the annular rib 20.
- the end 4 of the insertion end 4 of the drilling device 1 lies against the other annular surface 27 of the annular rib 20.
- An anchor rod 6 for rock anchors (self-drilling injection anchor) has an external thread 9 for connecting the anchor rod 6 to a drill 1 via a transition sleeve 5.
- the end of the anchor rod 6 screwed into the transition sleeve 5 has a section 12 with a smaller diameter than the outside diameter of the anchor rod 6 Diameter on.
- the section 12 of the anchor rod 6 with a tapered diameter has a chamfer 11 at its free end. As a result, lies between the inner surface 22 of the transition sleeve 5 and the end of the anchor rod
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Geochemistry & Mineralogy (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
- Piles And Underground Anchors (AREA)
- Dowels (AREA)
- Joining Of Building Structures In Genera (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
Description
Claims
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/AT2001/000247 WO2003008763A1 (de) | 2001-07-19 | 2001-07-19 | Verbindung einer ankerstange mit einem bohrgerät |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1407115A1 true EP1407115A1 (de) | 2004-04-14 |
EP1407115B1 EP1407115B1 (de) | 2006-03-15 |
Family
ID=3619083
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01274371A Expired - Lifetime EP1407115B1 (de) | 2001-07-19 | 2001-07-19 | Verbindung einer ankerstange mit einem bohrgerät |
Country Status (17)
Country | Link |
---|---|
US (1) | US7044678B2 (de) |
EP (1) | EP1407115B1 (de) |
JP (1) | JP4570871B2 (de) |
CN (1) | CN100378294C (de) |
AT (2) | ATE320546T1 (de) |
CA (1) | CA2454067C (de) |
CZ (1) | CZ302129B6 (de) |
DE (1) | DE50109210D1 (de) |
DK (1) | DK1407115T3 (de) |
ES (1) | ES2258061T3 (de) |
HK (1) | HK1067401A1 (de) |
NO (1) | NO333038B1 (de) |
PL (1) | PL198229B1 (de) |
PT (1) | PT1407115E (de) |
SI (1) | SI1407115T1 (de) |
SK (1) | SK287944B6 (de) |
WO (1) | WO2003008763A1 (de) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DK1134762T3 (da) | 2000-03-16 | 2004-08-30 | Naimer H L | Afbryder |
DE10336040B4 (de) * | 2003-08-01 | 2006-12-28 | Hilti Ag | Adapter für einen selbstbohrenden Gebirgsanker |
AT9590U1 (de) * | 2006-08-17 | 2007-12-15 | Atlas Copco Mai Gmbh | Reibrohranker und inflationsadapter für diesen |
AT505072B1 (de) | 2007-04-13 | 2009-02-15 | Alwag Tunnelausbau Gmbh | Verfahren und vorrichtung zum sichern eines mit einem aussengewinde versehenen gegenstands |
WO2010085829A2 (de) | 2009-01-27 | 2010-08-05 | Dywidag-Systems International Gmbh | Vorrichtung zum koppeln von zwei rohrartigen elementen |
PL3019700T3 (pl) | 2013-07-12 | 2018-03-30 | Minova International Limited | Podatna kotwa skalna |
DE102013012714A1 (de) * | 2013-08-01 | 2015-02-05 | Deilmann-Haniel Mining Systems Gmbh | Einsteckende für ein Bohr- und Ankersetzgerät |
CA3127119A1 (en) * | 2019-02-13 | 2020-08-20 | Fci Holdings Delaware, Inc. | Resin injection dolly |
AU2022266849A1 (en) * | 2021-04-27 | 2023-10-12 | Oka Rock Bolt Technologies Pty Limited | A drill head injection system for a self-drilling rock bolt assembly |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3537738A (en) * | 1968-04-15 | 1970-11-03 | Sandvikens Jernverks Ab | Drill rod for long hole drilling in the ground |
NL155335C (de) * | 1971-07-09 | 1900-01-01 | ||
FR2322322A1 (fr) * | 1975-08-29 | 1977-03-25 | Nova Hut Klementa Gottwalda | Jonction hermetique filetee de tubes |
US4332502A (en) * | 1977-01-11 | 1982-06-01 | Padley & Venables Limited | Apparatus for use in drilling |
JPS616488A (ja) * | 1984-06-20 | 1986-01-13 | 日本鋼管株式会社 | 油井管用ネジ継手 |
SE8605408D0 (sv) * | 1986-12-16 | 1986-12-16 | Atlas Copco Ab | Method of stabilizing a rock structure and stabilizer therefor |
US5169183A (en) * | 1987-05-12 | 1992-12-08 | Diamant Boart Stratabit S.A. | Threaded joint for drill rod elements |
DE3910627A1 (de) * | 1989-04-01 | 1990-10-04 | Ischebeck Friedrich Gmbh | Verbindungselement |
EP0552424A1 (de) * | 1992-01-24 | 1993-07-28 | Erico International Corporation | Verbindung für Bewehrungsstäbe mit hoher dynamischen Stärke und Verfahren zu seiner Herstellung |
CN2174566Y (zh) * | 1993-08-30 | 1994-08-17 | 徐州矿务局第二机械厂 | 钢丝绳结构锚杆 |
WO1996017153A1 (de) * | 1994-11-25 | 1996-06-06 | Gd-Anker-Mai-Pump Gesellschaft Mbh | Kupplung für ankerstangen |
US6073332A (en) * | 1998-03-09 | 2000-06-13 | Turner; William C. | Corrosion resistant tubular system and method of manufacture thereof |
JP2000008760A (ja) * | 1998-06-26 | 2000-01-11 | Boart Longyear Inc | 直線穴あけシステム |
US7108063B2 (en) * | 2000-09-25 | 2006-09-19 | Carstensen Kenneth J | Connectable rod system for driving downhole pumps for oil field installations |
-
2001
- 2001-07-19 DK DK01274371T patent/DK1407115T3/da active
- 2001-07-19 PT PT01274371T patent/PT1407115E/pt unknown
- 2001-07-19 CN CNB018234933A patent/CN100378294C/zh not_active Expired - Fee Related
- 2001-07-19 ES ES01274371T patent/ES2258061T3/es not_active Expired - Lifetime
- 2001-07-19 CA CA002454067A patent/CA2454067C/en not_active Expired - Fee Related
- 2001-07-19 AT AT01274371T patent/ATE320546T1/de active
- 2001-07-19 US US10/484,270 patent/US7044678B2/en not_active Expired - Fee Related
- 2001-07-19 DE DE50109210T patent/DE50109210D1/de not_active Expired - Lifetime
- 2001-07-19 CZ CZ20040059A patent/CZ302129B6/cs not_active IP Right Cessation
- 2001-07-19 JP JP2003515057A patent/JP4570871B2/ja not_active Expired - Fee Related
- 2001-07-19 SK SK35-2004A patent/SK287944B6/sk not_active IP Right Cessation
- 2001-07-19 EP EP01274371A patent/EP1407115B1/de not_active Expired - Lifetime
- 2001-07-19 PL PL367345A patent/PL198229B1/pl not_active IP Right Cessation
- 2001-07-19 SI SI200130549T patent/SI1407115T1/sl unknown
- 2001-07-19 WO PCT/AT2001/000247 patent/WO2003008763A1/de active IP Right Grant
-
2004
- 2004-01-16 NO NO20040209A patent/NO333038B1/no not_active IP Right Cessation
- 2004-10-14 HK HK04107915A patent/HK1067401A1/xx not_active IP Right Cessation
- 2004-12-22 AT AT0807604U patent/AT8246U3/de not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO03008763A1 * |
Also Published As
Publication number | Publication date |
---|---|
AT8246U2 (de) | 2006-04-15 |
AT8246U3 (de) | 2010-02-15 |
CA2454067C (en) | 2009-10-27 |
CN100378294C (zh) | 2008-04-02 |
PT1407115E (pt) | 2006-05-31 |
PL198229B1 (pl) | 2008-06-30 |
HK1067401A1 (en) | 2005-04-08 |
ES2258061T3 (es) | 2006-08-16 |
JP2004522030A (ja) | 2004-07-22 |
CA2454067A1 (en) | 2003-01-30 |
EP1407115B1 (de) | 2006-03-15 |
ATE320546T1 (de) | 2006-04-15 |
SK352004A3 (sk) | 2005-08-04 |
CZ200459A3 (cs) | 2004-06-16 |
CZ302129B6 (cs) | 2010-11-03 |
DK1407115T3 (da) | 2006-04-10 |
NO333038B1 (no) | 2013-02-18 |
JP4570871B2 (ja) | 2010-10-27 |
WO2003008763A1 (de) | 2003-01-30 |
SI1407115T1 (sl) | 2006-08-31 |
US20040184872A1 (en) | 2004-09-23 |
US7044678B2 (en) | 2006-05-16 |
NO20040209L (no) | 2004-03-15 |
DE50109210D1 (de) | 2006-05-11 |
PL367345A1 (en) | 2005-02-21 |
SK287944B6 (sk) | 2012-06-04 |
CN1535348A (zh) | 2004-10-06 |
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