EP0044272A2 - Dispositif pour l'introduction d'une colle à deux composants dans un tuyau pour la réalisation d'une ancre non-précontrainte - Google Patents

Dispositif pour l'introduction d'une colle à deux composants dans un tuyau pour la réalisation d'une ancre non-précontrainte Download PDF

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Publication number
EP0044272A2
EP0044272A2 EP81810222A EP81810222A EP0044272A2 EP 0044272 A2 EP0044272 A2 EP 0044272A2 EP 81810222 A EP81810222 A EP 81810222A EP 81810222 A EP81810222 A EP 81810222A EP 0044272 A2 EP0044272 A2 EP 0044272A2
Authority
EP
European Patent Office
Prior art keywords
tube
wall
nozzle assembly
pipe
borehole
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.)
Ceased
Application number
EP81810222A
Other languages
German (de)
English (en)
Other versions
EP0044272A3 (fr
Inventor
Günter Straub
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.)
Schweizerische Industrie Gesellschaft
Original Assignee
Schweizerische Industrie Gesellschaft
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 Schweizerische Industrie Gesellschaft filed Critical Schweizerische Industrie Gesellschaft
Publication of EP0044272A2 publication Critical patent/EP0044272A2/fr
Publication of EP0044272A3 publication Critical patent/EP0044272A3/fr
Ceased 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
    • 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
    • E21D21/0093—Accessories

Definitions

  • tie rods for the consolidation of loose rock sections or when the rock is broke.
  • These tie rods are mostly single rods and extend to the end of the borehole.
  • the anchor is fixed at this end of the borehole and screwed onto an anchor plate on the outside of the borehole by means of screw nuts.
  • the anchor rod is only fixed at the end of the borehole and it lies freely in the borehole along its entire length.
  • Sagging anchors which are embedded along the entire length of the borehole, are therefore preferably used here.
  • a borehole is ge with cement mortar fills and then the anchor rod is driven.
  • the mortar should be relatively fluid in order to adhere well to the ribs of the rib steel. This means that such an anchor cannot be used in overhead installation and with an upward or even vertical borehole.
  • a device according to the characterizing part of independent claim 1 fulfills this task.
  • the pipe 11 consists of a tube 11 made of any tensile material such as steel, glass fibers or the like.
  • the pipe 11 is centered at the end 10b of the borehole and at least at the beginning 10a of the same.
  • coil springs 16 are provided for centering, the smallest diameter of which is at most the same as the tube diameter, but is advantageous should be somewhat smaller so that the coil spring 30 is clamped on the tube 11 for centering.
  • the diameter is at least the same as the diameter of the borehole 10.
  • Such a device from a helical spring 17 as a retaining device has at its one end a diameter that is at most the same size as the diameter of the tube 11 and at its other end one that is at least as large as the diameter of the borehole 10.
  • Das The end of the helical spring 17 as a retaining device is bent outwards on the last part in the order of magnitude of approximately 5 mm.
  • the helix has a smaller distance at one end than at the other end. This will remove the screws when inserting the rod spring-drawn and forms openings.
  • a force on the pipe 11 in the direction out of the borehole causes the helical spring clawing into the rock with the bent end to compress the pipe 11 and thus fixes the pipe 11 in the borehole 10.
  • This mixing device 13 consists of a cylindrical wall 14 and is designed as a hollow cylinder which has helical ribs, which are drawn as webs 15, in its interior. If a two-component adhesive in separate form as binder B and adhesive K is now pressed in at the open end 11a of tube 11, the two components mix as a result of the turbulence caused by the ribs. The adhesive is pressed into the tube 11 until the space between the borehole and the outer wall of the tube is completely filled.
  • the inventive device for filling the adhesive is explained below with reference to FIG. 2.
  • the beginning of the pipe 11a and the static mixer 13 can be seen again.
  • the tube 11 is by means of two jaws. 21a, 21b, which are pressed against each other with a force P1.
  • An element 26 made of plastically deformable plastic, such as PVC or polyethylene, is placed on the pipe start 11a.
  • the element 26 comprises the tube 11 on the outer surface and lies with a flange 27 on the cut surface of the tube.
  • a nozzle assembly 20 consists of two concentric tubes 22, 23, of which the inner tube 23 projects beyond the end face of the outer tube 22.
  • the wall of the outer tube is provided with an edge 25 which represents the line of intersection between a conical surface and a cylindrical surface penetrating the same, the cone tip being directed away from the end surface and the cylindrical surface being the outer surface of the outer tube 22.
  • this nozzle assembly 20 is now pressed with a force P2 in the direction against the pair of clamping jaws 21a, 21b, the element 26 is plastically deformed by the conical surface 24 of the outer tube 22 on the outer edge of the flange 27 and forms a seal for the pressed-in resin.
  • the resin B e.g. the binder of the two-component adhesive is pressed through the inner tube 23.
  • FIGS. 5 and 6 A second basic form is shown in FIGS. 5 and 6, in which the element 26 is designed as a cylindrical sleeve, but this means that means for holding are present at the beginning of the tube 11a. As shown, this could be a recess in the tube wall, but according to the exemplary embodiment according to FIG. 6 it could also be a thread cut into the tube in order to fasten holding plates, mats or the like.
  • the outer wall 22 of the nozzle assembly here has a conical surface 24 which, similar to that shown in FIG. 2, presses on an edge of the element 26. According to FIG. 5, this surface 24 forms an edge 25 with the inner surface of the outer tube 22, which is the cutting line in the case of a conical surface penetrating a cylindrical surface. 6, the cylinder surface is correspondingly the outer surface of the outer tube 22.
  • FIG. 7 shows a variant of the nozzle assembly 20.
  • the two feed lines 31, 32 are adjacent bores which are arranged at least approximately symmetrically to the axis of rotation of a cone 30 penetrating into the tube start 11a.
  • the element 26 can be tubular in accordance with FIG. 5. This element 26, which is placed between the nozzle assembly 20 and the tube 11, can also achieve that the cut surfaces of the tubes do not have to be machined in order to mechanically attach the nozzle assembly to the beginning of the tube and to achieve a sufficient sealing effect with the nozzle assembly. Furthermore, the pressure by the force P2 can be significantly lower in order to achieve this tightness. In use, therefore, no machined cut surfaces need to be treated carefully so that they seal properly when the two components B and K are pressed into the pipe 11 with the required pressure of, for example, 120 bar.
  • the element 26 can be designed to be attached according to FIG. 4 . However, it can also be inserted into the tube according to FIG. 3, the flange 27 covering the cut surface of the tube.
  • the outer tube 22 of the nozzle assembly is equipped with an edge 25, which is the intersection between two penetrating conical surfaces, the conical tips being directed towards one another and, according to FIG. 3, an at least approximately flat surface 28 by which a seal between the deformable element 26 and the outer tube 22 is effected.

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)
  • Joining Of Building Structures In Genera (AREA)
EP81810222A 1980-07-11 1981-06-05 Dispositif pour l'introduction d'une colle à deux composants dans un tuyau pour la réalisation d'une ancre non-précontrainte Ceased EP0044272A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH535580 1980-07-11
CH5355/80 1980-07-11

Publications (2)

Publication Number Publication Date
EP0044272A2 true EP0044272A2 (fr) 1982-01-20
EP0044272A3 EP0044272A3 (fr) 1982-04-28

Family

ID=4292179

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81810222A Ceased EP0044272A3 (fr) 1980-07-11 1981-06-05 Dispositif pour l'introduction d'une colle à deux composants dans un tuyau pour la réalisation d'une ancre non-précontrainte

Country Status (2)

Country Link
EP (1) EP0044272A3 (fr)
FI (1) FI811657A7 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6802674B2 (en) 1999-12-02 2004-10-12 Sandvik Tamrock Oy Arrangement for feeding soldering material
US7365104B2 (en) 2005-03-31 2008-04-29 Eastman Kodak Company Light curable articles containing azinium salts
US7595351B2 (en) 2002-06-06 2009-09-29 Huntsman Advanced Materials Americas Inc. Actinic radiation curable compositions and their use
CN103643977A (zh) * 2013-11-21 2014-03-19 中国矿业大学 一种全锚分区让压注浆锚杆及其使用方法
CN105317452A (zh) * 2015-12-07 2016-02-10 山东科技大学 一种增阻让压大变形锚杆及其施工方法
CN105863699A (zh) * 2016-05-25 2016-08-17 贵州大学 注浆加固大变形锚杆及利用其加固岩体的方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA744550B (en) * 1973-07-27 1976-05-26 Envirotech Corp Injector apparatus and plug for retention of liquids underpressure
DE2602433C2 (de) * 1976-01-23 1984-09-20 Fischer, Artur, 7244 Waldachtal Verankerung eines Befestigungselementes
DE2730488A1 (de) * 1977-07-06 1979-01-18 Fischer Artur Dr H C Verankerung eines befestigungselementes

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6802674B2 (en) 1999-12-02 2004-10-12 Sandvik Tamrock Oy Arrangement for feeding soldering material
US7595351B2 (en) 2002-06-06 2009-09-29 Huntsman Advanced Materials Americas Inc. Actinic radiation curable compositions and their use
US7365104B2 (en) 2005-03-31 2008-04-29 Eastman Kodak Company Light curable articles containing azinium salts
CN103643977A (zh) * 2013-11-21 2014-03-19 中国矿业大学 一种全锚分区让压注浆锚杆及其使用方法
CN105317452A (zh) * 2015-12-07 2016-02-10 山东科技大学 一种增阻让压大变形锚杆及其施工方法
CN105863699A (zh) * 2016-05-25 2016-08-17 贵州大学 注浆加固大变形锚杆及利用其加固岩体的方法

Also Published As

Publication number Publication date
FI811657L (fi) 1982-01-12
FI811657A7 (fi) 1982-01-12
EP0044272A3 (fr) 1982-04-28

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Inventor name: STRAUB, GUENTER