EP0800615B1 - Ankerstab für einen bohr-injektionsanker - Google Patents
Ankerstab für einen bohr-injektionsanker Download PDFInfo
- Publication number
- EP0800615B1 EP0800615B1 EP96900026A EP96900026A EP0800615B1 EP 0800615 B1 EP0800615 B1 EP 0800615B1 EP 96900026 A EP96900026 A EP 96900026A EP 96900026 A EP96900026 A EP 96900026A EP 0800615 B1 EP0800615 B1 EP 0800615B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- thread
- anchoring rod
- rod according
- drilling
- 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
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 15
- 238000002347 injection Methods 0.000 title claims abstract description 13
- 239000007924 injection Substances 0.000 title claims abstract description 13
- 229920002430 Fibre-reinforced plastic Polymers 0.000 claims abstract description 4
- 239000011151 fibre-reinforced plastic Substances 0.000 claims abstract description 4
- 239000000835 fiber Substances 0.000 claims description 9
- 238000004873 anchoring Methods 0.000 claims 10
- 238000000926 separation method Methods 0.000 claims 1
- 238000005260 corrosion Methods 0.000 abstract description 3
- 230000007797 corrosion Effects 0.000 abstract description 3
- 230000002787 reinforcement Effects 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 229920001187 thermosetting polymer Polymers 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 241000209035 Ilex Species 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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
-
- 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
- E21D21/0006—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by the bolt material
-
- 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
- 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
- E21D21/006—Anchoring-bolts made of cables or wires
Definitions
- anchors for securing walls, the roof or the tunnel face used.
- an impact or rotary drill with a drill pipe first Drilled holes and then set the anchors, which for example, can be designed as adhesive anchors.
- drilling injection anchors are suggested (e.g. EP-B-355 379). They consist of one Steel pipe that carries a drill bit at the front and with the back at the Drill can be connected. After drilling, the Drill uncoupled and injection material through the pipe pressed in. Then the protruding pipe end screwed a clamping nut, which against a pressure plate presses the tunnel wall.
- a disadvantage of this Bohr injection anchor is their susceptibility to corrosion, and if the cavity protection should only work temporarily, e.g. on a tunnel face or in coal mining, so the secured wall has to be dismantled later, prepare the massive steel tubes of these injection anchors at later dismantling difficulties.
- the present invention has for its object the above Fix disadvantages. This task is accomplished through the combination of features of claims solved.
- Anchor rods made of fiber-reinforced plastic are known per se (e.g. US-A-4 664 573 and EP-A-94 908). These well-known anchor rods have unidirectionally oriented fibers in the longitudinal direction and therefore only have a low torsional strength. As They are therefore not suitable for drilling injection anchors.
- the pipe and the also has helically wound fibers the torsional strength of the pipe compared to known plastic anchor rods much bigger. Therefore, they can Drilling required torques transmitted via the anchor rod will. Surprisingly, it has been shown that the fiber-reinforced Plastic rod also the blows of the impact drill transferred to the drill bit with only minor losses. So far, this was not considered possible because of the professional world assumed that the plastic dampened the blows too much.
- the anchor rod according to the invention is corrosion-resistant and machinable, so that as a drilling injection anchor for permanent and temporary attachment can be used easily. At the later dismantling of a fixed wall, it is easily cut.
- the anchor rod according to the invention has the same tensile strength also significantly lighter than the well-known steel injection anchors. This makes handling, storage and transportation made easier.
- an anchor tube 1 is composed of a Tubular body 2 and an external round thread 3 molded therein with thread root 4 round in axial section and thread comb 5 shown.
- the tubular body 2 consists of a fiber-reinforced Thermoset. It has both longitudinal fibers 6 and helical wound fibers 7, the opposite sense of slope is to the pitch of the thread 3. This is the Tubular body 2 through the fibers 7 when transmitting an im attractive sense of the thread 3 acting torque radially compressed. This also increases the strength of the rod on torsion and pressure.
- the fibers 7 are preferably predominant arranged in the outer region of the tube 1.
- the thread 3 is in the embodiment of Figure 1 in the tubular body by pressing using a molded body before the finished curing of the thermoset of the tubular body 2, which from the thread base 4 material displaced the mold cavity for fills the thread comb. This ensures optimal strength of the thread.
- the molded body is one in the circumferential direction multi-part sleeve with centering means and can e.g. out a thermoplastic.
- the thread 3 however, also be cut into the tubular body 2.
- the other The end of the anchor tube 1 is identical.
- Figure 2 shows a variant in which the thread 3 on one the tubular body 2 molded or glued sleeve 8 is.
- the sleeve 8 can be made of a fiber-reinforced thermoset or consist of a metallic material.
- Figure 3 shows the structure of an injection drill anchor.
- a thread 3 of the tube 1 becomes a drill bit 12 with a Internal thread 13 screwed on.
- the crown 12 lies with one Shoulder 14 on the end face 9 of the tube 1 and has rinsing and injection channels 15 which are connected to the axial bore 10 of the Communicate tube 1.
- the crown has 12 on the face e.g. chisel-like cutting edges 16.
- the crown 12 can also be designed differently.
- On the other thread 3 is a sleeve 17 with a corresponding one Internal thread 18 screwed in half. In the protruding end of the sleeve 13 becomes a threaded pin Screwed in drill.
- the drilling process can then begin be, through the bore 10 and the channels 15 a Detergent, e.g. Air or water. If the anchor is to be longer than an anchor tube 1, so when reached a predetermined drilling depth of the threaded pin of the drill unscrewed from the sleeve 17, the drill is retracted and a second tube is screwed into the sleeve 17. On their another end 17 is screwed on and the Drilling continued.
- a Detergent e.g. Air or water.
- FIG. 4 shows a further embodiment of the thread 3 shown.
- the tubular body is not yet fully hardened 2 is a sliver with the pitch of the thread on the end 3 wound up so that the bottom of the thread is somewhat constricted becomes.
- Two half shells 20 are placed on this preformed thread a thin-walled sleeve 21 made of steel pressed radially.
- the Thread 3 is pressed into the half-shells 20.
- the two Half shells 20 collide in a common axial plane and grip with several projections 22 and matching incisions 23 into each other along the dividing line.
- the two half shells 20 are welded along the dividing line at several points, e.g. after the tungsten inert gas process.
- a sleeve 24 made of steel with a the end face 9 adjacent flange 25 is used.
- This embodiment has the advantages that the Steel sleeve 21 in the axial direction with the tubular body 2 is connected and the thread 3 considerably less for seizing tends as a thread formed in plastic.
- the flange 25 serves the purpose.
- the sleeve 24 supports the tubular body 3 against radial compression. With training after Figure 4 is therefore easier to extend the tube Loosen anchor tube 1 from the threaded pin of the drill.
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)
- Piles And Underground Anchors (AREA)
- Joining Of Building Structures In Genera (AREA)
- Dowels (AREA)
Description
- Figur 1
- Einen Axialschnitt durch einen Teil eines Ankerstabes,
- Figur 2
- eine zweite Ausführungsform,
- Figur 3
- einen Ankerstab mit Hülse und Bohrkrone, und
- Figur 4
- eine dritte Ausführungsform.
Claims (10)
- Ankerstab für einen Bohr-Injektionsanker, bestehend aus einem faserverstärkten Kunststoffrohr (1), das sowohl längsgerichtete als auch wendelförmig gewickelte Fasern (6, 7) enthält und an beiden Enden ein Gewinde (3) aufweist.
- Ankerstab nach Anspruch 1, wobei das Gewinde (3) ein Rundgewinde mit im Axialschnitt rundem Gewindekamm (5) und rundem Gewindegrund (4) ist.
- Ankerstab nach Anspruch 1 oder 2, wobei das Gewinde (3) auf den Rohrkörper (2) aufgegossen oder in den Rohrkörper (2) eingeformt oder eingeschnitten ist.
- Ankerstab nach Anspruch 1 oder 2, wobei das Gewinde (3) in einer auf den Rohrkörper (2) aufgeklebten Hülse (8, 21) gebildet ist.
- Ankerstab nach Anspruch 4, wobei die Hülse (21) aus mindestens zwei Schalenteilen (20) besteht, die auf den Rohrkörper (62) radial aufgepresst sind.
- Ankerstab nach Anspruch 5, wobei die Schalenteile (20) längs den Trennlinien mit mehreren Vorsprüngen (22) und dazu passenden Einschnitten (23) ineinandergreifen.
- Ankerstab nach Anspruch 5 oder 6, wobei die Schalenteile (20) an mehreren Stellen miteinander verschweisst sind.
- Ankerstab nach einem der Ansprüche 1-7, wobei die wendelförmig gewickelten Fasern (7) zumindest überwiegend den entgegengesetzten Steigungssinn haben wie die beiden Gewinde (3).
- Ankerstab nach einem der Ansprüche 1-8, wobei die wendelförmig gewickelten Fasern (7) überwiegend im äusseren Bereich des Rohres (1) angeordnet sind.
- Ankerstab nach einem der Ansprüche 1-9, wobei die beiden Gewinde (3) Aussengewinde sind.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH36/95 | 1995-01-06 | ||
CH3695 | 1995-01-06 | ||
PCT/CH1996/000003 WO1996021087A1 (de) | 1995-01-06 | 1996-01-05 | Ankerstab für einen bohr-injektionsanker |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0800615A1 EP0800615A1 (de) | 1997-10-15 |
EP0800615B1 true EP0800615B1 (de) | 1998-12-02 |
Family
ID=4177882
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96900026A Expired - Lifetime EP0800615B1 (de) | 1995-01-06 | 1996-01-05 | Ankerstab für einen bohr-injektionsanker |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0800615B1 (de) |
JP (1) | JPH10512025A (de) |
AT (1) | ATE174103T1 (de) |
AU (1) | AU4296296A (de) |
DE (1) | DE59600905D1 (de) |
WO (1) | WO1996021087A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004057711B3 (de) * | 2004-11-30 | 2006-09-21 | Hilti Ag | Ankerelement |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10106695B4 (de) * | 2001-02-14 | 2010-11-25 | Friedr. Ischebeck Gmbh | Bohrkrone für einen Bohr- oder Injektionsanker |
SE0100915L (sv) * | 2001-03-15 | 2002-09-16 | Atlas Copco Rock Drills Ab | Förfarande vid förstärkning av berg och jordmassor samt bergbult för utövande av förfarandet |
DE10219155C1 (de) * | 2002-04-29 | 2003-12-18 | Welser Profile Ag | Bergbaumetalldübel |
EP1680559B1 (de) | 2003-10-10 | 2009-12-23 | Erico International Corporation | Vorrichtung mit einem stab aus faserverstärktem kunststoff zur übertragung einer last durch eine wärmedämmschicht hindurch |
DE102006025248A1 (de) * | 2006-05-29 | 2007-12-06 | Beltec Industrietechnik Gmbh | Faserverstärkter Kunststoff-Bohranker |
NO20210696A1 (no) * | 2021-06-02 | 2022-12-05 | Tunnelsupply As | Stag for forankring av innredning i tunneler og bergrom |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2749068A1 (de) * | 1977-11-02 | 1979-05-03 | Gebirgssicherung Gmbh | Gebirgsanker |
DE3806128A1 (de) * | 1988-02-26 | 1989-09-07 | Ischebeck Friedrich Gmbh | Bohr-injektionsanker |
DE4018703C1 (en) * | 1990-06-12 | 1991-08-01 | Johannes Radtke | Improved cable anchor - includes several laminations and has fixing at end towards bottom of bore hole |
GB2262970B (en) * | 1991-12-19 | 1995-02-15 | Bridon Plc | Flexible roof bolt |
DE4209265A1 (de) * | 1991-12-21 | 1993-06-24 | Dyckerhoff & Widmann Ag | Vorrichtung zur verankerung eines stabfoermigen zugglieds aus faserverbundwerkstoff |
DE4204533C2 (de) * | 1992-02-15 | 1994-03-17 | Gd Anker Gmbh & Co Kg | Injektionsbohranker |
DE9317336U1 (de) * | 1993-11-12 | 1994-01-27 | Buddenberg, Heinrich, 47447 Moers | Injektionsseilanker |
-
1996
- 1996-01-05 EP EP96900026A patent/EP0800615B1/de not_active Expired - Lifetime
- 1996-01-05 DE DE59600905T patent/DE59600905D1/de not_active Expired - Fee Related
- 1996-01-05 AU AU42962/96A patent/AU4296296A/en not_active Abandoned
- 1996-01-05 WO PCT/CH1996/000003 patent/WO1996021087A1/de active IP Right Grant
- 1996-01-05 AT AT96900026T patent/ATE174103T1/de not_active IP Right Cessation
- 1996-01-05 JP JP8520663A patent/JPH10512025A/ja active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004057711B3 (de) * | 2004-11-30 | 2006-09-21 | Hilti Ag | Ankerelement |
Also Published As
Publication number | Publication date |
---|---|
ATE174103T1 (de) | 1998-12-15 |
DE59600905D1 (de) | 1999-01-14 |
EP0800615A1 (de) | 1997-10-15 |
AU4296296A (en) | 1996-07-24 |
JPH10512025A (ja) | 1998-11-17 |
WO1996021087A1 (de) | 1996-07-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE19836370C2 (de) | Verfahren zur Herstellung von Befestigungsvorrichtungen für Stäbe, Pfosten,Masten oder dergleichen im Erdreich und nach diesem Verfahren hergestellte Befestigungsvorrichtungen | |
EP0394179B1 (de) | Kombinierter starrer Profil- und Dehnanker mit Spreizelement | |
EP0014426B1 (de) | Gebirgsanker | |
DE3724165C2 (de) | ||
WO1993001363A1 (de) | Injektionsrohr und verfahren zum setzen eines gebirgsankers | |
DE3100804C2 (de) | "Injektionspacker für Bohrlochverschlüsse im Mauerwerk oder gewachsenem Fels" | |
EP0800615B1 (de) | Ankerstab für einen bohr-injektionsanker | |
DE2611676A1 (de) | Verfahren und vorrichtung zum niederbringen von erdbohrungen fuer erdanker | |
EP1724416A2 (de) | Fundamentsysteme zum befestigen eines stab- oder pfostenförmigen gegenstandes im erdboden und hülsenartiges aufnahmeteil dafür | |
EP1407115B1 (de) | Verbindung einer ankerstange mit einem bohrgerät | |
EP1818499A1 (de) | Einrichtung zum gleichzeitigen Bohren und Auskleiden von Bohrlöchern | |
DE2133593B2 (de) | Verfahren zum herstellen eines zugankers | |
DE19503122B4 (de) | Injektionsanker | |
EP0056255A1 (de) | Vorrichtung zum Befestigen von Gegenständen an einer fertigen Betonwand | |
DE2019533C3 (de) | Verfahren zum Herstellen eines vorgespannten VerpreBankers | |
DE4201419C1 (en) | Rock anchor for location in rock with low cohesion factor - comprises outer bore anchor for making borehole and stabilising hole wall and injection anchor of hardenable material | |
DE2353652C2 (de) | Ausbaubarer Verpreßanker mit verlorenem Ankerkörper | |
DE3633628A1 (de) | Verankerungselement, insbesondere duebel | |
DE3926787C2 (de) | Verfahren und Vorrichtung zum Einbringen und Verankern eines Zugpfahls | |
DE4032682C2 (de) | Gebirgsanker | |
DE4211334C1 (en) | Rock anchor for insertion in poorly cohesive rock - comprises bore anchor producing hole and stabilising hole walling and injection anchor inserted with hardenable medium | |
EP0697530B1 (de) | Anker für Beton oder dergleichen | |
DE4233304A1 (de) | Kupplungsmuffe und Verfahren zur Herstellung einer Kupplungsmuffe | |
CH693934A5 (de) | Verfahren zum Bohren und Verfuellen von Loechern. | |
DE2707304A1 (de) | Mehrteiliger versenk-klebanker |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 19970707 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT CH DE GB IT LI |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
17Q | First examination report despatched |
Effective date: 19980210 |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT CH DE GB IT LI |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRE;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.SCRIBED TIME-LIMIT Effective date: 19981202 Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19981202 |
|
REF | Corresponds to: |
Ref document number: 174103 Country of ref document: AT Date of ref document: 19981215 Kind code of ref document: T |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: NV Representative=s name: ISLER & PEDRAZZINI AG Ref country code: CH Ref legal event code: EP |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19990105 |
|
REF | Corresponds to: |
Ref document number: 59600905 Country of ref document: DE Date of ref document: 19990114 |
|
GBV | Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed] |
Effective date: 19981202 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 20031120 Year of fee payment: 9 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20031212 Year of fee payment: 9 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050131 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050131 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050802 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |