WO2010090500A3 - Expandable rock bolt tube - Google Patents

Expandable rock bolt tube Download PDF

Info

Publication number
WO2010090500A3
WO2010090500A3 PCT/KR2010/000800 KR2010000800W WO2010090500A3 WO 2010090500 A3 WO2010090500 A3 WO 2010090500A3 KR 2010000800 W KR2010000800 W KR 2010000800W WO 2010090500 A3 WO2010090500 A3 WO 2010090500A3
Authority
WO
WIPO (PCT)
Prior art keywords
rock bolt
hydraulic fluid
rock
expansion part
installation
Prior art date
Application number
PCT/KR2010/000800
Other languages
French (fr)
Korean (ko)
Other versions
WO2010090500A2 (en
Inventor
김진형
김경태
Original Assignee
주식회사 상신산업
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
Priority claimed from KR1020090132578A external-priority patent/KR100972357B1/en
Application filed by 주식회사 상신산업 filed Critical 주식회사 상신산업
Publication of WO2010090500A2 publication Critical patent/WO2010090500A2/en
Publication of WO2010090500A3 publication Critical patent/WO2010090500A3/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
    • E21D21/0033—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
    • 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
    • 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
    • E21D21/0073—Anchoring-bolts having an inflatable sleeve, e.g. hollow sleeve expanded by a fluid

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)
  • Lining And Supports For Tunnels (AREA)

Abstract

The present invention relates to a rock bolt used for rock reinforcement work, particularly to an expandable rock bolt tube in which: a folding part is formed in a "1" shape inside an expansion part to divide the inner space of the expansion part into two semicircular spaces, an inlet part in which hydraulic fluid is injected is formed in a pipe shape, and the tip of the pipe-shaped inlet part is used as an inlet hole to inject hydraulic fluid so that high pressure fluid can be quickly and easily injected into the expansion part during installation of the rock bolt to reduce installation time thereof. In addition, corrosion of the rock bolt due to residual hydraulic fluid can be prevented by completely draining the hydraulic fluid remaining in the rock bolt through natural drainage after completion of the rock bolt installation.
PCT/KR2010/000800 2009-02-09 2010-02-09 Expandable rock bolt tube WO2010090500A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR20090010104 2009-02-09
KR10-2009-0010104 2009-02-09
KR10-2009-0132578 2009-12-29
KR1020090132578A KR100972357B1 (en) 2009-02-09 2009-12-29 Expandable tube type rock bolt

Publications (2)

Publication Number Publication Date
WO2010090500A2 WO2010090500A2 (en) 2010-08-12
WO2010090500A3 true WO2010090500A3 (en) 2010-10-21

Family

ID=42542542

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2010/000800 WO2010090500A2 (en) 2009-02-09 2010-02-09 Expandable rock bolt tube

Country Status (1)

Country Link
WO (1) WO2010090500A2 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101038472B1 (en) * 2010-10-29 2011-06-02 주식회사 티에스테크노 Rockbolt and timbering method using the same
WO2012126042A1 (en) * 2011-03-18 2012-09-27 Dywidag-Systems International Pty Limited Inflatable friction bolt
JP2012255318A (en) * 2011-06-10 2012-12-27 Kajima Corp Expansion-type lock bolt having protrusion
SE535912C2 (en) * 2011-06-30 2013-02-12 Leif Eriksson Expandable rock bolt and a method of manufacturing a rock bolt
CN104805837B (en) * 2014-01-24 2017-06-27 河南理工大学 The pipe seam slip casting Composite Bolt body of rod
US9863248B2 (en) 2015-04-23 2018-01-09 Jason L. Moon Friction bolt
CN106703029A (en) * 2016-11-29 2017-05-24 河南理工大学 Pressure-type pre-stressed anchor capable of reducing prestress loss
CN109026143A (en) * 2018-07-25 2018-12-18 中交第公路工程局有限公司 A kind of interim concentration ejectment device and its application method for lithologic character stratum Tunnel Gushing
CN109184765B (en) * 2018-08-03 2020-06-16 中南大学 Detachable hydraulic anchor rod capable of yielding and releasing energy in steady state and supporting method thereof
CN110030023A (en) * 2019-03-15 2019-07-19 成都现代万通锚固技术有限公司 The application method of a kind of novel anchor rod is swollen shell head, anchor pole and anchor pole
CN111335921B (en) * 2020-02-28 2021-07-30 东南大学 Automatic grouting device for mounting single-point displacement meter and sectional grouting mounting method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000008796A (en) * 1998-06-19 2000-01-11 Kfc Ltd Pipe type lock bolt
JP2003148098A (en) * 2001-11-12 2003-05-21 Kfc Ltd Lock bolt and widening method
JP2006219933A (en) * 2005-02-14 2006-08-24 Nitto Tekko Kk Rock bolt and timbering construction method using the same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000008796A (en) * 1998-06-19 2000-01-11 Kfc Ltd Pipe type lock bolt
JP2003148098A (en) * 2001-11-12 2003-05-21 Kfc Ltd Lock bolt and widening method
JP2006219933A (en) * 2005-02-14 2006-08-24 Nitto Tekko Kk Rock bolt and timbering construction method using the same

Also Published As

Publication number Publication date
WO2010090500A2 (en) 2010-08-12

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