EP1283942A1 - Equipement utilise dans les mines et procede d'utilisation - Google Patents

Equipement utilise dans les mines et procede d'utilisation

Info

Publication number
EP1283942A1
EP1283942A1 EP01931871A EP01931871A EP1283942A1 EP 1283942 A1 EP1283942 A1 EP 1283942A1 EP 01931871 A EP01931871 A EP 01931871A EP 01931871 A EP01931871 A EP 01931871A EP 1283942 A1 EP1283942 A1 EP 1283942A1
Authority
EP
European Patent Office
Prior art keywords
cartridge
hole
tool
bolt
skin
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.)
Withdrawn
Application number
EP01931871A
Other languages
German (de)
English (en)
Inventor
Kerry Lee Dever
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.)
Minova International Ltd
Original Assignee
Fosroc International Ltd
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 Fosroc International Ltd filed Critical Fosroc International Ltd
Publication of EP1283942A1 publication Critical patent/EP1283942A1/fr
Withdrawn legal-status Critical Current

Links

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
    • E21D20/025—Grouting with organic components, e.g. resin
    • E21D20/026—Cartridges; Grouting charges
    • 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
    • E21D20/025—Grouting with organic components, e.g. resin
    • 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

  • This invention relates to equipment for use in mines, more particularly to roof bolts and a method for using same.
  • Roof bolts are well known in the mining industry and are extensively employed for consolidating the roof and providing anchoring points and support. Their use involves drilling a hole in the roof of the mine and inserting into the hole a resin filled cartridge.
  • the resin filled cartridges are also well known and comprise a curable resin and a catalyst for the resin contained within a sausage-like skin.
  • a bolt is inserted which pierces the skin and penetrates the resin.
  • the bolt is usually spun to mix the resin and catalyst and, once mixed, the resin cures and sets.
  • the present invention provides a solution to this problem by the use of a device to puncture the skin of the cartridge and thereby improve the contact between the resin and the wall of the bore hole.
  • a method for installing a roof bolt in a mine which method comprises: (i) drilling a hole in the roof of a mine (ii) inserting a resin cartridge having a skin into the hole 5 (iii) inserting a bolt into the hole and which comprises employing in the hole a tool having one or more sharp elements and wherein the insertion of the bolt causes the tool to puncture the cartridge and prevent the skin from expanding against the wall of the hole.
  • an o assembly comprising: a cartridge and attached to one end thereof a tool having a sharp element which on the application of pressure in the bore hole is capable of puncturing the skin of the cartridge and depressurising the cartridge.
  • Fig la is a side view of the tool
  • Fig lb is a bottom view of the tool
  • Figs 2a, 2b and 2c show the attachment of the tool to the resin cartridge and the insertion of the assembly into a bore hole 0
  • Figs 3a,3b, 3c and 3d show the operation of the tool and the puncturing of the resin cartridge.
  • mine in the present specification is intended to include quarries, tunnels and all underground earthworks.
  • roof is intended to include not only an overhead surface but also walls and all surfaces into which anchor bolts are inserted.
  • a tool for use with a cartridge to puncture the cartridge comprising a base of suitable size and cross section to be inserted in a bore hole and, extending from the base one or more o sharp elements disposed so that when the tool is located in a bore hole with the base towards the bottom of the hole, the elements project towards the mouth of the hole.
  • the tool of total height H comprises a top cylindrical portion 1 of outer diameter D equal to the cartridge diameter and thickness t equal to 0.5H, with a 45° chamfer of the upper face 2 to a depth of 0.25t, and a lower face 3 containing 5 eight teeth 4 equally spaced ar 45 degrees about the perimeter of 3.
  • Four rectangular through slots 7 of arc width w and height h are located in portion 1 at a o distance of 0.75t from lower face 3, equally spaced 90 degrees around D.
  • Each tooth tapers to a point at the free end 10 from which a flexible finger 11 of length 1 equal to 0.52D and diameter d4 equal to t/16 extends radially towards the disk centre at an angle of 15 degrees from horizontal towards lower face 3.
  • the tool is injection moulded of a hard, durable plastics material such as rhinite or nylon using a multiple stage mould though other materials may be used.
  • Figs 2a, 2b and 2c in use the tool is pressed onto the clip 13 of the cartridge 14 bending the fingers 11 of the tool until they clear and wedge against the underside 15 of the clip 13 thereby retaining the tool on the clip (Fig 2b) and allowing the cartridge to be inserted into the borehole 16 in the preferred orientation with the tool end leading (Fig 2c).
  • the roof bolt 17 is inserted into the bore hole 16 advancing the cartridge 14 towards the top 18 of the bore hole (Fig 3a).
  • the tool element contacts the end of the hole (Fig 3b) whereupon compression of the cartridge between the bolt tip 19 and the teeth 4 of the tool is begun sufficiently to puncture the ball end 20 of the cartridge (Fig 3c).
  • Continued insertion of the bolt serves to implement the flat bolt tip 19 as a plunger to extrude the resin contents 21 of the cartridge from the punctured end 20 thus affording annular flow of the resin contents between the cartridge skin 22 and bore hole wall 23 as illustrated in Fig 3d.

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)
  • Dowels (AREA)
  • Piles And Underground Anchors (AREA)
  • Joining Of Building Structures In Genera (AREA)

Abstract

La présente invention concerne un procédé permettant d'installer un boulon d'ancrage dans une mine, lequel procédé consiste : (i) à forer un trou dans le toit d'une mine ; (ii) à insérer une cartouche de résine munie d'une peau dans le trou ; (iii) à insérer un boulon dans le trou, et à utiliser dans le trou un outil comportant un ou plusieurs éléments aiguisés, l'insertion du boulon entraînant la perforation de la cartouche par le boulon et empêchant la peau de venir s'étendre contre la paroi du trou.
EP01931871A 2000-05-18 2001-05-17 Equipement utilise dans les mines et procede d'utilisation Withdrawn EP1283942A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US20510900P 2000-05-18 2000-05-18
US205109P 2000-05-18
PCT/GB2001/002215 WO2001088339A1 (fr) 2000-05-18 2001-05-17 Equipement utilise dans les mines et procede d'utilisation

Publications (1)

Publication Number Publication Date
EP1283942A1 true EP1283942A1 (fr) 2003-02-19

Family

ID=22760827

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01931871A Withdrawn EP1283942A1 (fr) 2000-05-18 2001-05-17 Equipement utilise dans les mines et procede d'utilisation

Country Status (6)

Country Link
EP (1) EP1283942A1 (fr)
AU (1) AU2001258562A1 (fr)
CA (1) CA2409071A1 (fr)
NZ (1) NZ522585A (fr)
WO (1) WO2001088339A1 (fr)
ZA (1) ZA200209323B (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2010281691B2 (en) * 2009-08-05 2014-05-15 F.M. Locotos Co., Inc. Tensionable tubular resin anchored tubular bolt and method

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1268624A (fr) * 1960-06-24 1961-08-04 Forges Et Boulonneries Hermant Dispositif d'ancrage perfectionné
DE1876513U (de) * 1963-03-23 1963-08-01 Becorit Grubenausbau Gmbh Leicht zerstoerbarer behaelter fuer eine kittmasse zur verwendung beim ankerausbau.
DE2349659C3 (de) * 1973-10-03 1979-06-13 Upat Gmbh & Co, 7830 Emmendingen Hilfsvorrichtung zum Befestigen eines Ankerstabes
US4194858A (en) 1978-09-25 1980-03-25 The Eastern Company Mine roof bolt anchor installation
DE2941769C2 (de) * 1979-10-16 1985-10-31 Upat Gmbh & Co, 7830 Emmendingen Verfahren zum Setzen eines Ankerbolzens und Ankerbolzen
GB2073283A (en) * 1980-02-12 1981-10-14 Deimold R Rock bolting
FR2500053A1 (fr) * 1981-02-13 1982-08-20 Lenoir & Mernier Boulon d'ancrage utilisant un accelerateur fulgurant pour la prise du mortier
EP0068227B1 (fr) * 1981-06-19 1986-01-29 UPAT GMBH & CO Boulon d'ancrage
SE8106165L (sv) * 1981-10-19 1983-04-20 Atlas Copco Ab Forfarande for bergbultning och bergbult
FR2522062A1 (fr) * 1982-02-22 1983-08-26 Titanite Explosifs Dispositif de retenue d'une charge de scellement dans un trou d'ancrage prealablement a l'enfoncement d'une tige d'ancrage dans ledit trou
US4516886A (en) 1984-05-14 1985-05-14 The Eastern Company Combined resin-mechanical mine roof support anchor
US4655645A (en) 1984-12-31 1987-04-07 H&S Machine & Supply Co., Inc. Method and apparatus for anchoring roof bolts
US4704053A (en) 1986-02-03 1987-11-03 H & S Machine & Supply Co., Inc. Versatile roof bolt assembly
US4664561A (en) 1986-08-12 1987-05-12 The Eastern Co. Combined resin-mechanical mine roof bolt anchor
US5042961A (en) 1989-06-15 1991-08-27 H & S Machine & Supply Co., Inc. Roof bolt with helical coil and bail anchor
US5051038A (en) * 1990-04-06 1991-09-24 Ingersoll-Rand Company Barrier plug for dynamic rock stabilizing fixture
US5052861A (en) 1990-04-16 1991-10-01 H&S Machine & Supply Co., Inc. Roof bolt with plastic sleeve and mechanical anchor
US5076734A (en) 1990-10-05 1991-12-31 H & S Machine And Supply Co., Inc. Roof bolt with paddle resin mixer and method for making the same
US5378087A (en) 1991-09-25 1995-01-03 Locotos; Frank M. Mine roof support apparatus and method
US5230589A (en) 1992-03-23 1993-07-27 Gillespie Harvey D Mine roof bolt
US5544980A (en) * 1994-04-11 1996-08-13 Seegmiller; Ben L. Anchor structure

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0188339A1 *

Also Published As

Publication number Publication date
CA2409071A1 (fr) 2001-11-22
ZA200209323B (en) 2004-02-25
WO2001088339A1 (fr) 2001-11-22
NZ522585A (en) 2004-07-30
AU2001258562A1 (en) 2001-11-26
WO2001088339A8 (fr) 2002-02-28

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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

AK Designated contracting states

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

17P Request for examination filed

Effective date: 20021122

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: FOSROC MINING INTERNATIONAL LIMITED

17Q First examination report despatched

Effective date: 20031009

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20040220