CA2599522A1 - Improved resin groutable expansion anchor and method of installing same - Google Patents

Improved resin groutable expansion anchor and method of installing same Download PDF

Info

Publication number
CA2599522A1
CA2599522A1 CA002599522A CA2599522A CA2599522A1 CA 2599522 A1 CA2599522 A1 CA 2599522A1 CA 002599522 A CA002599522 A CA 002599522A CA 2599522 A CA2599522 A CA 2599522A CA 2599522 A1 CA2599522 A1 CA 2599522A1
Authority
CA
Canada
Prior art keywords
rock bolt
shank
rock
borehole
expansion
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.)
Abandoned
Application number
CA002599522A
Other languages
French (fr)
Inventor
Peter Craig
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.)
FCI Holdings Delaware Inc
Original Assignee
Jennmar Corporation
Peter Craig
Jennmar Of Pennsylvania, Llc
Fci Holdings Delaware, Inc.
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 Jennmar Corporation, Peter Craig, Jennmar Of Pennsylvania, Llc, Fci Holdings Delaware, Inc. filed Critical Jennmar Corporation
Publication of CA2599522A1 publication Critical patent/CA2599522A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
    • F16B13/14—Non-metallic plugs or sleeves; Use of liquid, loose solid or kneadable material therefor
    • F16B13/141—Fixing plugs in holes by the use of settable material
    • F16B13/143—Fixing plugs in holes by the use of settable material using frangible cartridges or capsules containing the setting components
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH 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 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
    • E21D21/0066—Anchoring-bolts formed by a bundle of radially arranged rigid elements

Abstract

A rock bolt and a method of installing a rock bolt in a borehole (3) of a rock formation. The rock bolt including an elongate shank (1) and an expansion assemby (2) located at the distal end of the shank. The expansion assembly being expandable to lock the rock bolt in a borehole upon relative forward rotation of the rock bolt. The rock bolt further including stop means (4) to lock the expansion assembly with respect to the rock bolt for conjoined rotation upon a reverse rotation of the rock bolt.

Claims (22)

1. A rock bolt having:

an elongate shank;

an expansion assembly at the distal end of said shank, said expansion assembly being expandable to lock said rock bolt in a borehole upon relative forward rotation of said rock bolt; and stop means to lock said expansion assembly with respect to said rock bolt for conjoined rotation upon a reverse rotation of said rock bolt.
2. A rock bolt according to claim 1, wherein said expansion assembly includes an expansion shell having two or more longitudinally extending elongate expansion leaves for locking said rock bolt in said borehole.
3. A rock bolt according to claim 2, wherein said expansion shell is slidably engaged with said shank and is supported on said shank by an abutment member.
4. A rock bolt according to claim 3, wherein said abutment member is a nut threadedly engaged with said shank.
5. A rock bolt according to any one of claims 2 to 4, wherein the diameter of said expansion shell is substantially equal to the diameter of said rock bolt shank such that said cementing material flows more freely to the region of said rock bolt shank below said expansion shell.
6. A rock bolt according to any one of claims 2 to 5, wherein said expansion assembly includes a chuck in threaded engagement with said shank such that rotation of said rock bolt with respect to said chuck causes axial movement of said chuck, said chuck having surfaces in sliding keying engagement with complementary surfaces on said expansion leaves to cause outward divergent deformation of said leaves upon said relative forward rotation of said rock bolt.
7. A rock bolt according to claim 6, wherein said chuck and expansion shell are adapted for conjoined rotation.
8. A rock bolt according to any one of the preceding claims, wherein said stop means is a stop formation disposed at the distal end of said rock bolt shank.
9. A rock bolt according to claim 8, wherein said stop formation is a flange member fixedly connected to said rock bolt shank.
10. A rock bolt according to claim 8, wherein said stop formation is formed from a portion of said rock bolt shank.
11. A rock bolt according to claim 10, wherein the distal end of said rock bolt is pressed flat to define said stop formation.
12. A rock bolt according to any one of claims 2 to 11, wherein each leaf includes a plurality of gripping formations disposed on its outer surface for gripping engagement with said borehole.
13. A rock bolt according to any one of claims 6 to 12, wherein said chuck surfaces are tapered.
14. A rock bolt according to any one of claims 6 to 13, wherein said chuck includes one or more fluid flow passageways.
15. A rock bolt substantially as herein described with reference to any one of the embodiments of the invention illustrated in the accompanying drawings and/or examples.
16. A method of installing a rock bolt according to any one of claims 1 to 15 in a borehole of a rock formation, including the steps of:

(i) inserting a frangible capsule containing a cementing material into the borehole;

(ii) inserting the rock bolt into the borehole until the capsule is raptured and rotating in a reverse direction whilst applying an insertion force to further insert into the borehole; and (iii) rotating the bolt in a forward direction to expand the expansion assembly and thereby lock the rock bolt in the borehole.
17. A method according to claims 16, wherein a substantial portion of said rock bolt shank is encapsulated by said cementing material after step (ii).
18. A method according to claim 16 or claim 17, wherein said reverse rotation mixes said cementing material.
19. A method according to any one of claims 16 to 18, wherein said frangible capsule in substantially shredded by said reverse rotation.
20. A method according to any one of claims 16 to 19, wherein the head of said rock bolt is substantially 50 mm away from the surface of said rock formation after step (ii).
21. A method according to any one of claims 16 to 20, wherein said cementing material is a two-part epoxy resin compound.
22. A method of installing a rock bolt substantially as herein described with reference to any one of the embodiments of the invention illustrated in the accompanying drawings and/or examples.
CA002599522A 2005-02-23 2006-02-23 Improved resin groutable expansion anchor and method of installing same Abandoned CA2599522A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AU2005200804 2005-02-23
AU2005200804A AU2005200804B2 (en) 2005-02-23 2005-02-23 Improved resin groutable expansion anchor and method of installing same
PCT/US2006/006393 WO2006091724A2 (en) 2005-02-23 2006-02-23 Resin groutable expansion anchor

Publications (1)

Publication Number Publication Date
CA2599522A1 true CA2599522A1 (en) 2006-08-31

Family

ID=36928003

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002599522A Abandoned CA2599522A1 (en) 2005-02-23 2006-02-23 Improved resin groutable expansion anchor and method of installing same

Country Status (6)

Country Link
US (1) US20080260472A1 (en)
CN (1) CN101151437B (en)
AU (1) AU2005200804B2 (en)
CA (1) CA2599522A1 (en)
WO (1) WO2006091724A2 (en)
ZA (1) ZA200707108B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT501875B1 (en) * 2005-06-07 2008-05-15 Alwag Tunnelausbau Gmbh METHOD AND DEVICE FOR DRILLING, IN PARTICULAR FITTING OR TURNING OF A HOLE IN GROUND OR ROCK MATERIAL
CA2624690A1 (en) * 2005-11-09 2007-05-18 Steven Weaver Self drilling rock bolt
CN101672191B (en) * 2009-10-12 2011-07-20 北京科技大学 Mechanized method for installing resin anchor rod
CN101787893A (en) * 2010-03-24 2010-07-28 东北大学 Novel resin bolt installer
AT13162U1 (en) * 2012-04-12 2013-07-15 Dywidag Systems Int Gmbh A method of drilling holes in soil and for securing an anchor in a well and apparatus therefor
CN102678146A (en) * 2012-04-20 2012-09-19 中南大学 Quickly mounted efficient energy-absorbing mining anchor rod
CA2790694C (en) * 2012-09-20 2015-07-21 Robert Cousineau Self-undercut expansion anchor insertion system
CN103291337B (en) * 2013-05-29 2015-08-05 成都现代万通锚固技术有限公司 There is the anchor pole of external expansion gear
CN109297462B (en) * 2018-11-09 2019-10-08 山东科技大学 The observation device and method of base object model rock stratum dynamic settling amount are covered on goaf

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3394527A (en) * 1967-07-24 1968-07-30 American Cyanamid Co Reinforcing anisotropic non-homogeneous engineering structures
US4162133A (en) * 1977-09-21 1979-07-24 The Eastern Company Resin reinforced expansion anchor and method of installation
US4194858A (en) * 1978-09-25 1980-03-25 The Eastern Company Mine roof bolt anchor installation
US4299515A (en) * 1980-01-16 1981-11-10 The Eastern Company Rock reinforcement system
US4413930A (en) * 1980-11-21 1983-11-08 Jennmar Corporation Method and apparatus for combining resin bonding and mechanical anchoring of a bolt in a rock formation
US4437795A (en) * 1981-11-02 1984-03-20 Birmingham Bolt Company Mine roof anchor assembly
US4516886A (en) * 1984-05-14 1985-05-14 The Eastern Company Combined resin-mechanical mine roof support anchor
US4611954A (en) * 1984-09-25 1986-09-16 Republic Corporation Apparatus and method for mine installations
US4861197A (en) * 1987-06-15 1989-08-29 Jennmar Corporation Roof bolt system
US4865489A (en) * 1988-08-08 1989-09-12 Jennmar Corporation Mine roof anchor having adjustable resin retaining washer
US4861198A (en) * 1988-11-22 1989-08-29 Jennmar Corporation Expansion assembly for mine roof bolts
US5078547A (en) * 1989-06-19 1992-01-07 Jennmar Corporation Expansion assembly for mine roof bolts
US5244314A (en) * 1991-06-27 1993-09-14 Jennmar Corporation Expansion assembly
US5649789A (en) * 1993-03-16 1997-07-22 Cutincoal Pty Limited Integrated drilling and rock bolting apparatus
US5501551A (en) * 1995-03-24 1996-03-26 The Eastern Company Mine roof expansion anchor, expansible shell element used therein and method of installation
US5762451A (en) * 1997-02-26 1998-06-09 Jennmar Corporation Multi-piece, split bail expansion anchor
US6742966B2 (en) * 2001-01-12 2004-06-01 James D. Cook Expansion shell assembly
CN2608857Y (en) * 2002-02-28 2004-03-31 杜兴军 Time control gas range and timing valve thereof
CN2554353Y (en) * 2002-06-19 2003-06-04 西山煤电集团公司西铭矿 Expansion anchor rod with telescopic rod

Also Published As

Publication number Publication date
WO2006091724A2 (en) 2006-08-31
AU2005200804B2 (en) 2012-10-11
WO2006091724A3 (en) 2007-06-21
CN101151437B (en) 2011-05-18
US20080260472A1 (en) 2008-10-23
ZA200707108B (en) 2008-10-29
CN101151437A (en) 2008-03-26
AU2005200804A1 (en) 2006-09-07

Similar Documents

Publication Publication Date Title
CA2599522A1 (en) Improved resin groutable expansion anchor and method of installing same
AU2007203409B2 (en) Rock bolt
US8209934B2 (en) Wall tie and method of using and making same
JP5620112B2 (en) Anchor and its anchor nut
US8215875B2 (en) Bolt anchor
RU2005141565A (en) ANCHOR BOLT
CA2543755A1 (en) Detachable anchor bolt mixing head for use in mine roof support systems and method of using same
US10202998B2 (en) Anchor with an expansion section and a cutting thread
HU210790B (en) Anchor for anchoring by means of a compound in a drilling in a concrete component
AU2008207349A1 (en) Self drilling rock bolt
CN101251021B (en) Tensioning assembly for a cable bolt
US9677586B2 (en) Anchor
EP3561190B1 (en) Screw-in anchor bolt and method for installing curtain wall and panel therewith
EP3612719B1 (en) Rock bolt installation tool
AU2012261576B2 (en) Rock bolt and rock bolt component
CN107461388B (en) Anchor bolt
CN204397839U (en) Driver
CZ260395A3 (en) Expanding dowel
JP5925650B2 (en) Post-installed anchor set
EP3530877A1 (en) Rock bolt and method for drilling and reinforcing material
EP3530878B1 (en) Impact absorber for rock bolt
CN207005056U (en) Anchor component can be pipetted
CN101571050A (en) Pulling assembly
EP0154466A1 (en) Bolt anchor

Legal Events

Date Code Title Description
EEER Examination request
FZDE Discontinued

Effective date: 20140506