SE9902065L - Tubular mounting bolt - Google Patents

Tubular mounting bolt

Info

Publication number
SE9902065L
SE9902065L SE9902065A SE9902065A SE9902065L SE 9902065 L SE9902065 L SE 9902065L SE 9902065 A SE9902065 A SE 9902065A SE 9902065 A SE9902065 A SE 9902065A SE 9902065 L SE9902065 L SE 9902065L
Authority
SE
Sweden
Prior art keywords
hole
bolt
tube
anchored
expansion
Prior art date
Application number
SE9902065A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE512834C2 (en
SE9902065D0 (en
Inventor
Thomas Arvidsson
Original Assignee
Atlas Copco Rock Drills Ab
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 Atlas Copco Rock Drills Ab filed Critical Atlas Copco Rock Drills Ab
Priority to SE9902065A priority Critical patent/SE9902065L/en
Publication of SE9902065D0 publication Critical patent/SE9902065D0/en
Priority to AU28400/00A priority patent/AU770287B2/en
Priority to CA002371136A priority patent/CA2371136A1/en
Priority to EP00906844A priority patent/EP1183441A1/en
Priority to PCT/SE2000/000229 priority patent/WO2000075489A1/en
Priority to JP2001501743A priority patent/JP2003501573A/en
Publication of SE512834C2 publication Critical patent/SE512834C2/en
Publication of SE9902065L publication Critical patent/SE9902065L/en
Priority to ZA200109337A priority patent/ZA200109337B/en

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
    • E21D21/004—Bolts held in the borehole by friction all along their length, without additional fixing means

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)
  • Forging (AREA)
  • Extrusion Of Metal (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Abstract

Tube-formed rock bolt with closed profile intended to be anchored in a bore hole. The bolt is anchored in the bore hole through internal pressurisation with a fluid, for instance water, so that its diameter is plastically expanded into contact with the wall of the hole. The bolt has before its expansion a cross-section whose peripheral length exceeds the circumference of the hole but a largest diameter, which is smaller than that of the hole. In order to obtain a profile being sufficiently flexible for expansion and at the same time having a sufficiently large cross-sectional area for the strength the tube has a varying wall thickness in a peripheral direction. This is achieved by making the tube-formed bolt by means of extrusion of an aluminium-based material.
SE9902065A 1999-06-04 1999-06-04 Tubular mounting bolt SE9902065L (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
SE9902065A SE9902065L (en) 1999-06-04 1999-06-04 Tubular mounting bolt
AU28400/00A AU770287B2 (en) 1999-06-04 2000-02-07 Tube-formed rock bolt
CA002371136A CA2371136A1 (en) 1999-06-04 2000-02-07 Tube-formed rock bolt
EP00906844A EP1183441A1 (en) 1999-06-04 2000-02-07 Tube-formed rock bolt
PCT/SE2000/000229 WO2000075489A1 (en) 1999-06-04 2000-02-07 Tube-formed rock bolt
JP2001501743A JP2003501573A (en) 1999-06-04 2000-02-07 Tubular lock bolt
ZA200109337A ZA200109337B (en) 1999-06-04 2001-11-13 Tube-formed rock bolt.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9902065A SE9902065L (en) 1999-06-04 1999-06-04 Tubular mounting bolt

Publications (3)

Publication Number Publication Date
SE9902065D0 SE9902065D0 (en) 1999-06-04
SE512834C2 SE512834C2 (en) 2000-05-22
SE9902065L true SE9902065L (en) 2000-05-22

Family

ID=20415894

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9902065A SE9902065L (en) 1999-06-04 1999-06-04 Tubular mounting bolt

Country Status (7)

Country Link
EP (1) EP1183441A1 (en)
JP (1) JP2003501573A (en)
AU (1) AU770287B2 (en)
CA (1) CA2371136A1 (en)
SE (1) SE9902065L (en)
WO (1) WO2000075489A1 (en)
ZA (1) ZA200109337B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT412739B (en) * 2002-01-22 2005-06-27 Techmo Entw & Vertriebs Gmbh METHOD AND DEVICE FOR DRILLING A HOLE IN GROUND OR ROCK MATERIAL AND FOR FORMING AN ANCHORAGE
AT412361B (en) * 2002-09-03 2005-01-25 Hammer Rene METHOD AND DEVICE FOR SAVING THE MOUNTAIN AND REMOVING STOOLS, TUNNELS & DIG.
JP2005200893A (en) 2004-01-14 2005-07-28 Nisshin Steel Co Ltd Steel pipe expansion type rock bolt with high bearing capacity and its manufacturing method
WO2007023363A1 (en) * 2005-08-23 2007-03-01 Pieter Schalk Mulder An expansible rock bolt
CA2822470A1 (en) * 2010-12-22 2012-06-28 Garock Pty Ltd Rock bolt

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1410258A (en) * 1919-03-29 1922-03-21 Edward Ogden J Expansion shield
US4284379A (en) * 1979-07-25 1981-08-18 Ingersoll-Rand Company Earth structure stabilizer
ZA811894B (en) * 1980-03-28 1982-04-28 R Thom An anchor bolt
DE3120809A1 (en) * 1981-05-25 1982-12-16 Hilti AG, 9494 Schaan ANCHOR BOLT WITH CYLINDRICAL BOLT BODY
ZA906021B (en) * 1989-08-02 1991-05-29 Ingersoll Rand Co A dynamic earth anchor,and a sleeve therefor

Also Published As

Publication number Publication date
JP2003501573A (en) 2003-01-14
SE512834C2 (en) 2000-05-22
AU2840000A (en) 2000-12-28
CA2371136A1 (en) 2000-12-14
EP1183441A1 (en) 2002-03-06
SE9902065D0 (en) 1999-06-04
WO2000075489A1 (en) 2000-12-14
ZA200109337B (en) 2003-02-26
AU770287B2 (en) 2004-02-19

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