WO2010059168A1 - Câble gainé - Google Patents

Câble gainé Download PDF

Info

Publication number
WO2010059168A1
WO2010059168A1 PCT/US2008/084505 US2008084505W WO2010059168A1 WO 2010059168 A1 WO2010059168 A1 WO 2010059168A1 US 2008084505 W US2008084505 W US 2008084505W WO 2010059168 A1 WO2010059168 A1 WO 2010059168A1
Authority
WO
WIPO (PCT)
Prior art keywords
tension member
cable bolt
grout
sheath
elongate sheath
Prior art date
Application number
PCT/US2008/084505
Other languages
English (en)
Inventor
John G. Oldsen
Dakota Faulkner
Original Assignee
Jennmar Corporation
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 filed Critical Jennmar Corporation
Priority to CA2742253A priority Critical patent/CA2742253C/fr
Priority to AU2008364300A priority patent/AU2008364300B2/en
Priority to US13/127,588 priority patent/US8690484B2/en
Priority to PCT/US2008/084505 priority patent/WO2010059168A1/fr
Publication of WO2010059168A1 publication Critical patent/WO2010059168A1/fr

Links

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
    • E21D21/0033—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts having a jacket or outer tube
    • 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
    • E21D20/028—Devices or accesories for injecting a grouting liquid in a bore-hole
    • 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

  • the present invention relates to bolts for rock strata reinforcement and, more particularly, to sheathed cable bolts that are anchored prior to tensioning, tensioned, and post- grouted with a cementitious material.
  • rock bolts including solid rigid shaft bolts and flexible cable bolts, are commonly used to consolidate the rock strata.
  • a rock bolt is point anchored in the blind end of a bore hole, tensioned, and then grouted.
  • the rock bolt may be point anchored by locating a resin cartridge in the blind end of the bore and rotating the rock bolt to burst the resin cartridge and mix its contents.
  • the rock bolt may also be point anchored using a mechanical anchor, such as an expansion shell, that expands in the bore to anchor the bolt. Once anchored, the bolt is tensioned and a cementitious grout is inserted into the bore.
  • the rock bolt may also be provided with a sheath or sleeve, which in combination with the post-grouting, provides corrosion protection for the bolt when used in corrosive environments.
  • United States Patent No. 5,636,945 to Nes discloses a rock bolt having a tube extending over the bolt to form an annular passage. A nut is threaded on the outer end of the bolt and engages a spherical support. An opening of the support is threaded to engage the external threads on the tube. The bolt is anchored by tightening the nut to expand an expansion bushing.
  • United States Patent No. 4,850,746 to Finsterwalder et al. discloses a rock anchor having an elongated anchor rod laterally enclosed by an axial ⁇ y elongated sheathing tube with slight play so that the tension member can extend independently of the sheathing tube.
  • An anchor nut is threaded onto the trailing end of the rod to engage a flange of the sheathing tube positioned adjacent a dish-shaped anchor plate.
  • United States Patent No. 7,381,013 to Rataj et al. discloses a rock bolt having threaded second end with a nut threadably secured thereon.
  • a sleeve surrounds a portion of the bolt to form an annular passage between the sleeve and the bolt.
  • the nut is disposed within the interior of a cup that extends into a bore hole.
  • An annular flange of the cup is attached to a second end of the sleeve.
  • a first end of the sleeve is provided with a cap that engages the bolt.
  • United States Patent No. 5,525,013 to Seegmiller et al. discloses a cable bolt having a sleeve element crimped to an upper end of the bolt, a "birdcage" enlarged section, and an epoxy-flow dam element.
  • the dam element includes a split ring having a shoulder with a T- extension that engages a T-slot.
  • a cable bolt includes a tubular member surrounding the bolt and secured to the bolt via receiving jaws.
  • United States Patent No. 7,037,046 to Fergusson discloses a cable bolt having a threaded end fitting at a near end of the bolt that cooperates with a load plate, grout injector, and nut.
  • a plastic tube is disposed over a portion of the bolt for the installation of grout and the far end of the cable bolt includes an expansion anchor to enable installation of the bolt.
  • a cable bolt comprising a tension member having a first end and a second end.
  • a rotatable collar is positioned on the tension member and is rotatable relative to the tension member.
  • An elongate sheath having a first end and a second end, is disposed over at least a portion of the tension member and secured to the rotatable collar.
  • the cable bolt includes a support member to restrict the axial movement of the elongate sheath.
  • the support member may be a fixed collar secured to the tension member.
  • the rotatable collar may be positioned adjacent to the fixed collar towards the second end of the tension member relative to the fixed collar and a resin compression ring is positioned adjacent the second end of the elongate sheath.
  • the tension member may comprise a cable formed from a plurality of wound strands and the elongate sleeve may have a wall portion defining a plurality of openings.
  • the tension member may include a plurality of deformations extending radially outward. The plurality of deformations may be positioned between the rotatable collar and the second end of the tension member.
  • a bearing plate defining a grout tube passageway and foam tube passageway therethrough, is positioned adjacent the first end of the tension member. Further, a barrel and wedge assembly is positioned adjacent the bearing plate towards the first end of the tension member. The barrel and wedge assembly has a plurality of wedges engaged with the tension member and a barrel is disposed over and receives the wedges therein.
  • An end plug is positioned proximate the first end of the elongate sheath. The end plug includes a cylindrical body defining a cable bolt passageway and foam tube passageway therethrough, the cable bolt extending through the cable bolt passageway.
  • a foam injection tube is disposed within at least a portion of the foam tube passageway.
  • a method of securing an anchor in a structure includes the step of providing a cable bolt comprising a tension member having a first end and a second end, and an elongate sheath having a first end and a second end disposed over at least a portion of the tension member.
  • the sheath is rotatable relative to the tension member.
  • the method further includes the step of positioning the second end of the tension member in a bore hole drilled in the structure with the second end of the tension member engaging a capsule having a resin component and a catalyst component.
  • the method includes a further step of rotating the cable bolt relative to the sheath to fracture and/or mix the resin and catalyst components to secure the second end of the tension member in the bore hole.
  • the cable bolt may include a resin compression ring positioned adjacent the second end of the elongate sheath to substantially prevent resin from flowing towards the first end of the tension member.
  • the cable bolt may include a bearing plate and barrel and wedge assembly, where the barrel and wedge assembly is restricted from axial movement towards the first end of the tension member.
  • the method may include the step of tensioning the cable bolt.
  • the cable bolt may be provided with an end plug as described above and injected with expandable foam into a foam injection tube positioned at least a portion of the way into the foam tube passageway of the end plug such that the expandable foam seals a portion of an annulus between the tension member and the elongate sheath.
  • Grout may then be injected into the elongate sheath to encase at least a portion of the cable bolt in grout.
  • the grout may be a ceraentrtious grout material.
  • the grout is injected into a grout tube positioned in the grout tube passageway of the end cap.
  • the grout tube extends beyond the foam insertion tube in the annulus between the tension member and the elongate sheath.
  • a wall portion of the elongate sleeve may define a plurality of openings such that the grout flows through the elongate sheath towards the second end of the sheath and flows out the plurality of openings into an annulus between the bore hole and the elongate sheath.
  • Fig. 1 is a part-sectioned side view of a cable bolt according to one embodiment of the present invention
  • FIG. 2 is a part-sectioned side view of the cable bolt shown in Fig. 1, showing the cable bolt inserted into a bore hole;
  • Fig. 3 is a part-sectioned side view of the cable bolt shown in Fig. 1, showing a first end of the cable bolt;
  • Fig. 4 is a part-sectioned side view of the cable bolt shown in Fig. 1, showing an intermediate portion of the cable bolt;
  • Fig. 5 is a part-sectioned side view of the cable bolt shown in Fig. 1, showing the cable bolt anchored and grouted;
  • FIG. 6 is a top right perspective view of a portion of a fixed collar according one embodiment of the present invention.
  • Fig. 7 is a bottom left perspective view of the portion of the fixed collar shown in Fig. 6;
  • FIG. 8 is a top right perspective view of a further portion of the fixed collar according to one embodiment of the present invention.
  • Fig. 9 is a bottom right perspective view of the portion of the fixed collar shown in Fig. 8;
  • Fig. 10 is a perspective view of an end cap according to one embodiment of the present invention.
  • Fig. 11 is a top view of the end cap shown in Fig. 10;
  • Fig. 12 is an exploded perspective view of a rotatable collar according to one embodiment of the present invention.
  • a cable bolt 10 includes a tension member 15 having a first end 19 and a second end 21.
  • the tension member 15 may be a cable formed from a plurality of wound strands.
  • a support member, such as a fixed collar 30 is fixedly secured to the tension member 15 between the first and second ends 19, 21.
  • a rotatable collar 35 is positioned on the tension member 15. The rotatable collar 35 is rotatable relative to the tension member 15 and is positioned adjacent to the fixed collar 30 towards the second end 21 of the tension member 15 relative to the fixed collar 30. The rotatable collar 35 is free to rotate about the tension member 15. Further, the rotatable collar 35 is free to slide or translate axially along the tension member 15.
  • An elongate sheath 45 having a first end 47 and a second end 49 is disposed over at least a portion of the tension member 15 and is secured to the rotatable collar 35 such that the tension member 15 is free to rotate relative to the sheath 45.
  • the elongate sheath 45 includes a plurality of ribs 52 and plurality of spaced-apart openings 54 extending through the wall of the sheath 45. The openings 54 are axially and circumferentially spaced from one another.
  • the elongate sheath 45 may be formed from plastic, such as high density polyethylene, although other suitable materials may also be used. [0027] Referring to Figs.
  • the fixed collar 30 has a first half 32 and a second half 33 for receiving the tension member 15 therebetween.
  • Each of the halves 32, 33 of the fixed collar 30 includes fastener openings 34 for receiving a fastener (not shown), such as a bolt.
  • the halves 32, 33 are clamped together through the fastener openings 34 to fixedly secure the fixed collar 30 to the tension member 15.
  • the fastener openings 34 in the second half 33 of the fixed collar 30 may be tapped and the openings 34 in the first half 32 may be through holes.
  • the fixed collar 30 may formed from metal, such as steel, although other suitable materials may also be used.
  • the rotatable collar 35 has a first half 36 and a second half 37 for receiving the tension member 15 therebetween.
  • the rotatable collar 35 is rotatably secured to the tension member 15 by securing each of the halves 36, 37 to the elongate sheath 45.
  • the second end 49 of the elongate sheath 45 may be secured to each of the halves 36, 37 by providing openings 39 that extend through the sheath 45 into the halves 36, 37 of the rotatable collar 35.
  • a fastener 60 is then inserted through the openings 39 to secure the elongate sheath 45 to the rotatable collar 35, This arrangement allows the rotatable collar 35, and the elongate sheath 45, to rotate independently from the tension member 15.
  • the openings 39 may be provided by drilling a hole into the elongate sheath 45 and the rotatable collar 35.
  • the fastener 60 may be a screw, such as a pan head screw, although other suitable fasteners may be used.
  • the rotatable collar 35 may be formed from plastic, such as polyethylene, although other suitable materials may also be used.
  • the cable bolt 10 further includes a resin compression ring 65 disposed over the tension member 15 and positioned adjacent to the second end 49 of the elongate sheath 45.
  • the cable bolt 10 also includes a bearing plate 70 defining a grout tube passageway 72 and foam tube passageway 74 therethrough.
  • the bearing plate 70 is positioned adjacent the first end 19 of the tension member 15.
  • a barrel and wedge assembly 80 may be provided adjacent the bearing plate 70 towards the first end 19 of the tension member 15.
  • the barrel and wedge assembly 80 has a plurality of wedges 84 engaged with the tension member 15 and a barrel 82 disposed over and receiving the wedges 84 therein. The barrel and wedge assembly 80 is restricted from axial movement towards the first end 19 of the tension member 15,
  • the cable bolt 10 includes an end plug 90 proximate the first end 47 of the elongate sheath 45.
  • the end plug 90 as shown in Figs. 10 and 11, has a cylindrical body 92 defining a cable bolt passageway 94, a foam tube passageway 96, and a grout tube passageway 98 therethrough.
  • the end plug 90 is positioned over the tension member 15 through the cable bolt passageway 94 and into or near the first end 47 of the sheath 45.
  • a foam injection tube 101 is threaded through the foam tube passageway 74 of the bearing plate 70 and through the foam tube passageway 96 of the end plug 90 into the sheath 45.
  • a grout tube 105 is threaded through the grout tube passageway 72 of the bearing plate 70 and through the grout tube passageway 98 of the end plug 90 into the sheath 45. As shown more clearly in Fig. 3, the grout tube 105 extends toward the second end 49 of the sheath 45 beyond the foam injection tube 101.
  • the tension member 15 includes at least one deformation 25 extending radially outward from the member 15,
  • the deformation(s) 25 is positioned between the rotatable collar 35 and the second end 21 of the tension member 15.
  • the deformation 25 may be a "bulb" or "cage” formed by the separation of the wound strands of the tension member 15.
  • the tension member 15 may include a plurality of deformations 25, For instance, the tension member 15 may include five deformations 25 positioned towards the second end 21 of the tension member 15.
  • the tension member 15 may also include a button or sleeve 40 at the end of the tension member 15. The deformation 25 and button 40 facilitate the rotational mixing of resin during anchoring of the cable bolt 10.
  • a structure 110 such as a mine or tunnel roof, is provided with a bore hole 115 drilled into the structure 110.
  • a capsule 120 or a bundle of capsules 120 having a resin component and a catalyst component 135 is pushed to the top of the bore hole 115 using a pushrod or conduit.
  • the capsule 120 may be a polyester resin cartridge.
  • the cable bolt 10 is positioned within the bore hole 115 by placing the second end 21 of the tension member 15 into the bore hole 115 such that the second end 21 of the tension member 15 engages the capsule or capsules 120.
  • the cable bolt 10 is then rotated relative to the elongate sheath 45 to fracture the capsule(s) 120 and mix the resin and catalyst components 135 released therefrom, which cure and harden thereby securing the second end 21 of the tension member 15 in the bore hole 115.
  • the cable bolt 10 may be inserted into the bore hole 115 using a stiffener tube (not shown) that surrounds a portion of the bolt 10 and provides rigidity to assist in the positioning of the bolt 10. The stiffener tube is removed prior to anchoring or securing the second end 21 of the tension member 15.
  • the resin compression ring 65 positioned adjacent to the second end 49 of the elongate sheath 45, substantially prevents resin 135 from flowing towards the first end 19 of the tension member 15,
  • the resin compression ring 65 forces the resin towards the blind end of the bore hole 115.
  • the end plug 90 After anchoring the second end 21 of the tension member 15, the end plug 90, with the foam injection tube 101 and the grout tube 105 inserted through the respective passages 96, 98, is positioned over the first end 19 of the tension member 15 via the cable bolt passageway 94 of the end plug 90 and into the first end 47 of the elongate sheath 45.
  • the space between the elongate sheath 45 and the tension member 15 forms an annulus 125 surrounding the tension member 15.
  • the space between the bore hole 115 and the elongate sheath 45 forms an annulus 130 surrounding the sheath 45. A portion of the annulus 130 towards the first end of the elongate sheath 45 may be plugged to prevent excessive grout from running out of the annulus 130.
  • the foam injection tube 101 and the grout tube 105 are threaded through the grout tube passageway 72 and the foam tube passageway 74 of the bearing plate 70.
  • the bearing plate 70 is positioned over the first end 19 of the tension member 15 proximate to the structure 110 and bore hole 115.
  • the barrel and wedge assembly 80 is then threaded over the first end 19 of the tension member 15 and positioned adjacent to the bearing plate 70.
  • the cable bolt 10 is then tensioned to a pre-determined load using a hydraulic tensioner (not shown) with tensioner wedges (not shown) to grip and engage the bolt 10.
  • the bolt 10 may be tensioned to 24 tons.
  • expandable foam 133 is injected into the foam injection tube 101 and into the annulus 125 between the elongate sheath 45 and the tension member 15. The foam seals a portion of the annulus 125 towards the first end 47 of the elongate sheath 45.
  • the foam 133 does not extend beyond the end of the grout tube 105.
  • the expandable foam may be expandable polyurethane foam, although other suitable expanding foams may be used.
  • the cable bolt 10 is then grouted by injecting grout 140 into the grout tube 105 to encase at least a portion of the cable bolt 10.
  • the grout tube 105 extends beyond the foam insertion tube 101 in the annulus 125 between the sheath 45 and the tension member 15.
  • the foam 133 injected into the annulus 125 between the elongate sheath 45 and the tension member 15 prevents the grout 140 from flowing out the first end 47 of the elongate sheath 45.
  • the grout 140 flows through the elongate sheath 45 towards the second end 49 of the sheath 45 and flows out the plurality of openings 54 into the annulus 130 between the bore hole 115 and the sheath 45.
  • the grout 140 is prevented from running out the first end 47 of the sheath 45 by the seal formed by the end plug 90 and foam.
  • the annulus 130 between the sheath 45 and the bore hole 115 may also be plugged using a cloth rag or other material to prevent the grout 140 from excessively running out the bottom of the bolt 10.
  • the grout 140 may be a cementitious grout material.
  • the cable boit 10 is anchored to provide reinforcement of the structure 1 10 with the cementitious grout and the elongate sheath 45 providing two layers of corrosion protection.
  • the fixed collar 30 and rotatable collar 35 provide a simple and reliable arrangement for securing the sheath 45 to the tension member 15 while allowing rotation of the tension member 15 relative to the sheath 45, Due to the independent rotation of the elongate sheath 45 relative to the tension member 15, the tension member 15 can be rotated to fracture and mix the resin while the sheath 45 remains stationary ensuring that the sheath 45 is not damaged during anchoring of the bolt 10.
  • rotation of the elongate sheath 45 within the bore hole 115 may cause abrasion damage to the sheath 45.

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)

Abstract

L'invention concerne un boulon de câble comportant un élément de tension ayant une première extrémité et une deuxième extrémité. Un collier rotatif est positionné sur l'élément de tension et est rotatif par rapport à l'élément de tension. Une gaine allongée, ayant une première extrémité et une deuxième extrémité, est disposée sur au moins une partie de l'élément de tension et est assujettie au collier rotatif. L'invention concerne également un procédé d'assujettissement d'un dispositif d’ancrage dans une structure.
PCT/US2008/084505 2008-11-24 2008-11-24 Câble gainé WO2010059168A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CA2742253A CA2742253C (fr) 2008-11-24 2008-11-24 Cable gaine
AU2008364300A AU2008364300B2 (en) 2008-11-24 2008-11-24 Sheathed cable
US13/127,588 US8690484B2 (en) 2008-11-24 2008-11-24 Sheathed cable
PCT/US2008/084505 WO2010059168A1 (fr) 2008-11-24 2008-11-24 Câble gainé

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2008/084505 WO2010059168A1 (fr) 2008-11-24 2008-11-24 Câble gainé

Publications (1)

Publication Number Publication Date
WO2010059168A1 true WO2010059168A1 (fr) 2010-05-27

Family

ID=42198401

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2008/084505 WO2010059168A1 (fr) 2008-11-24 2008-11-24 Câble gainé

Country Status (4)

Country Link
US (1) US8690484B2 (fr)
AU (1) AU2008364300B2 (fr)
CA (1) CA2742253C (fr)
WO (1) WO2010059168A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102031981A (zh) * 2010-11-19 2011-04-27 湖南科技大学 一种可伸长锚杆的锚固方法
EP2395198A1 (fr) * 2010-06-14 2011-12-14 Minova Arnall Sp.z o.o Boulon de câble
US20120039672A1 (en) * 2010-08-10 2012-02-16 Fci Holdings Delaware, Inc. Fully grouted cable bolt
US20140147227A1 (en) * 2012-09-14 2014-05-29 Fci Holdings Delaware, Inc. Cable Bolt

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8967916B2 (en) * 2011-05-05 2015-03-03 Earth Support Services, Inc. Mine roof support apparatus and system
MX2017016852A (es) * 2015-06-23 2018-09-06 Ncm Innovations Pty Ltd Sistema de entrega de lechada.
US10125802B2 (en) * 2017-03-03 2018-11-13 Chu-Yu Lin Bearing cable structure while fabricating panel
CN109184766B (zh) * 2018-08-30 2020-03-10 武汉理工大学 一种预应力扩散型大孔径高强混锚锚索及施工方法
CN110344867B (zh) * 2019-08-23 2024-03-15 中铁二院工程集团有限责任公司 一种适用于大变形地层的先锚式管索锚杆及施工方法
CN111720148B (zh) * 2020-06-22 2022-03-04 辽宁大学 区段煤柱自锚对拉防冲锚索及其使用方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5919006A (en) * 1997-02-14 1999-07-06 Jennmar Corporation Tensionable cable bolt with mixing assembly
US6375271B1 (en) * 1999-04-30 2002-04-23 Young, Iii Chapman Controlled foam injection method and means for fragmentation of hard compact rock and concrete
US6428243B1 (en) * 1996-09-09 2002-08-06 Quantax Pty Ltd Cable bolt

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3379019A (en) * 1965-05-03 1968-04-23 Chester I. Williams Rock bolt assembly for upgrouting operations
JPS5457059A (en) * 1977-09-30 1979-05-08 Kubota Ltd Rock bolt
US4160615A (en) * 1978-03-23 1979-07-10 The International Nickel Company, Inc. Cable rock anchor
DE3713291A1 (de) * 1987-04-18 1988-11-03 Dyckerhoff & Widmann Ag Gebirgsanker zur sicherung von strecken und raeumen im berg- und tunnelbau
US5082399A (en) * 1988-08-08 1992-01-21 Jennmar Corporation Mine roof anchor having adjustable resin retaining washer and expansion shell assembly with friction reducing means
NO176069C (no) * 1992-09-09 1999-06-25 Irsta Stolindustri As Anordning for forankring og gysing av bergbolt
US5511909A (en) * 1994-06-07 1996-04-30 Jennmar Corporation Cable bolt and method of use in supporting a rock formation
US5525013A (en) * 1994-10-31 1996-06-11 Seegmiller; Ben L. Cable bolt structure and related components
DE10220116A1 (de) * 2002-05-06 2003-11-20 Hilti Ag Verankerungselement
AUPS310802A0 (en) * 2002-06-21 2002-07-11 Industrial Rollformers Pty Limited Yielding cable bolt
PT1546508E (pt) * 2002-08-02 2011-03-09 Dywidag Systems Internat Pty Ltd Aparelho de pós cimentação de parafuso de ancoragem
CA2544494C (fr) * 2003-11-07 2010-07-13 Sean Peter Buxton Bouchon d'obturation

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6428243B1 (en) * 1996-09-09 2002-08-06 Quantax Pty Ltd Cable bolt
US5919006A (en) * 1997-02-14 1999-07-06 Jennmar Corporation Tensionable cable bolt with mixing assembly
US6375271B1 (en) * 1999-04-30 2002-04-23 Young, Iii Chapman Controlled foam injection method and means for fragmentation of hard compact rock and concrete

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2395198A1 (fr) * 2010-06-14 2011-12-14 Minova Arnall Sp.z o.o Boulon de câble
US20120039672A1 (en) * 2010-08-10 2012-02-16 Fci Holdings Delaware, Inc. Fully grouted cable bolt
US8757934B2 (en) * 2010-08-10 2014-06-24 Fci Holdings Delaware, Inc. Fully grouted cable bolt
AU2011289463B2 (en) * 2010-08-10 2015-12-03 Fci Holdings Delaware, Inc. Fully grouted cable bolt
CN102031981A (zh) * 2010-11-19 2011-04-27 湖南科技大学 一种可伸长锚杆的锚固方法
CN102031981B (zh) * 2010-11-19 2012-12-05 湖南科技大学 一种可伸长锚杆的锚固方法
US20140147227A1 (en) * 2012-09-14 2014-05-29 Fci Holdings Delaware, Inc. Cable Bolt
AU2013315240B2 (en) * 2012-09-14 2016-09-08 Fci Holdings Delaware, Inc. Cable bolt
US9512720B2 (en) * 2012-09-14 2016-12-06 Fci Holdings Delaware, Inc. Cable bolt

Also Published As

Publication number Publication date
AU2008364300A1 (en) 2010-05-27
US8690484B2 (en) 2014-04-08
CA2742253A1 (fr) 2010-05-27
AU2008364300A8 (en) 2011-06-02
AU2008364300B2 (en) 2015-01-22
CA2742253C (fr) 2016-01-12
US20110217126A1 (en) 2011-09-08

Similar Documents

Publication Publication Date Title
CA2742253C (fr) Cable gaine
AU2008200918B2 (en) Improved cable bolt
US4704053A (en) Versatile roof bolt assembly
EP2318659B1 (fr) Cable d'ancre pour la roche
US20090041550A1 (en) Expansion bail anchor and method
CN109477383B (zh) 一种抗腐蚀可缩锚杆
EP2384391B1 (fr) Boulon elastique et ensemble
EP2379843B1 (fr) Boulon de câble manchonné
JP5020876B2 (ja) 支保部材およびその支保部材の定着方法
KR100783139B1 (ko) 록 볼트장치
EP3299577A1 (fr) Dispositif, procédé et système de chargement de fixateurs pour boulons d'ancrage
AU2014201857B2 (en) A tensionable cable bolt assembly
AU2012307074B2 (en) A tensionable cable bolt assembly
AU2014203653B2 (en) Yielding bolt and assembly
KR200401990Y1 (ko) 선행 하중 재하형 록 볼트장치
AU2013204193B2 (en) A cable bolt assembly
AU2014203600A1 (en) Rock bolt assembly

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 08878338

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 2742253

Country of ref document: CA

WWE Wipo information: entry into national phase

Ref document number: 2008364300

Country of ref document: AU

WWE Wipo information: entry into national phase

Ref document number: 13127588

Country of ref document: US

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 2008364300

Country of ref document: AU

Date of ref document: 20081124

Kind code of ref document: A

122 Ep: pct application non-entry in european phase

Ref document number: 08878338

Country of ref document: EP

Kind code of ref document: A1