EP0843073B1 - Procédé et dispositif pour la mise en place de boulons d'ancrage à injection - Google Patents
Procédé et dispositif pour la mise en place de boulons d'ancrage à injection Download PDFInfo
- Publication number
- EP0843073B1 EP0843073B1 EP97890218A EP97890218A EP0843073B1 EP 0843073 B1 EP0843073 B1 EP 0843073B1 EP 97890218 A EP97890218 A EP 97890218A EP 97890218 A EP97890218 A EP 97890218A EP 0843073 B1 EP0843073 B1 EP 0843073B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- drill
- breakthrough
- anchor
- drill point
- head
- 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
- 238000000034 method Methods 0.000 title claims description 10
- 238000002347 injection Methods 0.000 title description 12
- 239000007924 injection Substances 0.000 title description 12
- 238000004873 anchoring Methods 0.000 title description 2
- 238000005553 drilling Methods 0.000 claims description 16
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 238000005755 formation reaction Methods 0.000 claims 2
- 238000010276 construction Methods 0.000 claims 1
- 230000000284 resting effect Effects 0.000 claims 1
- 238000003825 pressing Methods 0.000 description 9
- 238000011010 flushing procedure Methods 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 239000003599 detergent Substances 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 230000009194 climbing Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 235000011837 pasties Nutrition 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
- E21D20/02—Setting anchoring-bolts with provisions for grouting
-
- 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
Definitions
- the invention relates to a method according to the Preamble of claim 1.
- the aim of the invention is to avoid this disadvantage and to propose a method of the type mentioned at the beginning, in which A high level of security is guaranteed that the anchor or Skewer maintains its position during the pressing of the hardening mass.
- the proposed measure ensures that the anchor or spit is carried away by the emerging highly viscous mass is and therefore with the simultaneous axial movement of the Drill pipe remains in the deepest end of the borehole.
- the highly viscous mass also makes it radial Migration of the anchor or spit is a very considerable resistance opposite, creating a high degree of positional accuracy of the anchor or skewer is ensured. Due to the high viscosity Mass-related high position stability of the anchors can also Anchor ropes are used.
- the injection compound can be anchor mortar, synthetic resin etc.. but also act as pasty explosives.
- Another object of the invention is a device to propose to carry out the method according to the invention.
- the one at one end have a head provided with a cutting edge.
- the head of the anchor in the axial direction against the drilling direction supported. This makes it necessary to anchor the anchor into the drill head use.
- the Anchor may only have a maximum length than the marshalling area corresponds to a drill carriage receiving the drill pipe, in other words, it must match the length of the anchor Drill mount can be used.
- the aim of the invention is to avoid this disadvantage and to propose a device according to the preamble of claim 2, where also anchors with a the marshalling area of the used Length of the drill carriage can be used can.
- this is in a device according to the Preamble of claim 2 by the characterizing features of Claim 2 reached.
- the proposed measures are far-reaching Closure of the opening of the opening of the drill head ensured, the drill head even without inserted anchor is fully usable. This makes it possible to drill the hole first and then insert the anchor into the drill pipe. Problems with the are often encountered during drilling a very substantial game inside the drill pipe Anchoring avoided. In addition, the length limitation of the Anchor with regard to the shunting length of the drill carriage used path.
- the Drill head 1 made with drill pins 2 on its free end face Tungsten carbide is equipped with an opening 3, which is in axial Direction of the drill head 1 extends.
- This breakthrough 3 points a non-circular cross-section and expands against the free Face of the drill head.
- the opening 3 a substantially cross-shaped cross section.
- a drill stub 4 held at its free Has a cutting edge 5.
- This drilling stub 4 is in supported in the axial direction against the drilling direction and is present the conical surfaces of the opening 3.
- the drilling stub 4 with a transverse bore 6 provided, which is penetrated by a substantially U-shaped spring 7 is, the legs in pocket-shaped extensions 8 of the Breakthrough 3 engage and the drill stub by friction hold with the walls of breakthrough 3.
- the legs in pocket-shaped extensions 8 of the Breakthrough 3 engage and the drill stub by friction hold with the walls of breakthrough 3.
- the drill head 1 is in the usual way on a drill string 9 screwed on, which can also be formed in several parts.
- the compression head 10 has in the usual way provided with the feed 11 Sleeve 12 on the inside of a circumferential groove 13 in the area of the feed 11, the sleeve one with the Drill pipe 9 encloses head 14 rotatably connected.
- This Head 14 is provided with a central blind bore 15 which is against the interior of the drill pipe 9 is too open and has a cross hole 16 with the circumferential groove 13 of the sleeve 12 in connection stands.
- the sleeve 12 is against the head 14 by means of seals 17 sealed.
- a rotary hammer (not shown) engages on the head 14 who can engage in the blind bore 18.
- an anchor In the manufacture of an anchor according to the invention by means of the drill head 1, in which a drill stub 4 is held and which is connected to a drill pipe 9, a hole in the securing rock formation advanced. This can be done in the drill pipe 9 an anchor 19 may also be introduced, this is necessary However not.
- a detergent is added to the Interior of the drill pipe supplied to the drilling site.
- the contribution the detergent is carried out via a rinsing head, which is also known as Compression head 10 can be formed.
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)
Claims (4)
- Procédé de sécurisation de formations géologiques instables ou peu stables, sans cohésion ou peu cohésives, en particulier lors du percement de tunnels, dans lequel des trous sont tout d'abord percés dans la formation avec une tige de fleuret creuse et des perches ou des ancrages sont introduits dans ceux-ci avec un certain jeu, après quoi une masse durcissable est injectée dans les trous pendant le retrait simultané des tiges de fleuret, les perches ou ancrages demeurant dans les trous, caractérisé en ce que la masse durcissable injectée a une viscosité de 1500 à 5000 cP.
- Dispositif pour la mise en oeuvre du procédé selon la revendication 1 avec une tige de fleuret (9) qui présente un canal dans le sens axial et qui présente à son extrémité antérieure une tête de forage avec une ouverture axiale (3), qui présente sur au moins une partie de sa longueur, à partir de la face libre de la tête de forage (1), une section non circulaire, un interstice étant ménagé entre la paroi intérieure de la tige de fleuret (9) et l'ancrage (19) ou la perche et la paroi intérieure de l'ouverture (3) de la tête de forage (1), caractérisé en ce qu'un bouchon de forage (4) pourvu d'une lame (5) et pouvant être repoussé vers l'extérieur axialement dans le sens du forage est maintenu dans l'ouverture axiale (3) de la tête de forage (1), lequel bouchon de forage est maintenu pour l'essentiel dans la zone de l'ouverture (3) qui commence sur la face frontale de la tête de forage (1) et présente également une section non circulaire.
- Dispositif selon la revendication 2, caractérisé en ce que le bouchon de forage (4) est retenu dans la tête de forage (1) par frottement à l'aide d'au moins un ressort (7), le ou les ressorts (7) s'appuyant sur la paroi intérieure de l'ouverture (3) de la tête de forage (1).
- Dispositif selon la revendication 2 ou 3, caractérisé en ce que le ressort (7) est replié sensiblement en forme de V et traverse un trou transversal (6) du bouchon de forage (4) et s'appuie par l'extrémité libre de ses deux bras sur la paroi intérieure de l'ouverture (3) de la tête de forage (1).
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT198996 | 1996-11-13 | ||
AT1989/96 | 1996-11-13 | ||
AT198996 | 1996-11-13 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0843073A1 EP0843073A1 (fr) | 1998-05-20 |
EP0843073B1 true EP0843073B1 (fr) | 2002-02-06 |
Family
ID=3525438
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97890218A Expired - Lifetime EP0843073B1 (fr) | 1996-11-13 | 1997-11-04 | Procédé et dispositif pour la mise en place de boulons d'ancrage à injection |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0843073B1 (fr) |
JP (1) | JPH10220197A (fr) |
DE (1) | DE59706293D1 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010023627B4 (de) * | 2010-03-08 | 2012-07-26 | Markus Swoboda | Selbstbohranker |
CN105089550A (zh) * | 2014-05-20 | 2015-11-25 | 枣庄矿业集团中兴建安工程有限公司 | 提拉式卡瓦止浆塞 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1369178A (fr) * | 1963-09-05 | 1964-08-07 | Procédé et dispositif d'ancrage applicable aux tiges de soutènement employées dans les mines, et pour tous autres scellements à sec | |
GB1257429A (fr) * | 1969-05-30 | 1971-12-15 | ||
DE2431113A1 (de) * | 1974-06-28 | 1976-01-15 | Takechi Komusho Kk | Verfahren und vorrichtung zum einsetzen eines ankers |
US4289427A (en) * | 1979-02-07 | 1981-09-15 | Owens-Corning Fiberglas Corporation | Process for installing roof bolts |
JPS5856594B2 (ja) * | 1980-10-03 | 1983-12-15 | 住友化学工業株式会社 | 不燃耐熱性の、アンカ−ボルトを孔内に固着するための固着剤 |
US4378180A (en) * | 1980-11-05 | 1983-03-29 | Scott James J | Yieldable mine roof support fixture |
AT392517B (de) * | 1988-11-03 | 1991-04-25 | Sauer Gerhard Ing Dr | Verfahren und vorrichtung zur absicherung von nicht bzw. maessig standfesten kohaesionslosen bis leicht kohaesiven geologischen formationen |
FI905862A (fi) * | 1990-11-28 | 1992-05-29 | Tampella Oy Ab | Bergbult. |
DE4131457A1 (de) * | 1991-09-21 | 1993-03-25 | Basf Ag | Patrone oder kartusche fuer die chemische befestigungstechnik |
-
1997
- 1997-10-27 JP JP9294103A patent/JPH10220197A/ja active Pending
- 1997-11-04 DE DE59706293T patent/DE59706293D1/de not_active Expired - Fee Related
- 1997-11-04 EP EP97890218A patent/EP0843073B1/fr not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0843073A1 (fr) | 1998-05-20 |
JPH10220197A (ja) | 1998-08-18 |
DE59706293D1 (de) | 2002-03-21 |
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