ZA201708615B - An inflatable rock bolt - Google Patents

An inflatable rock bolt

Info

Publication number
ZA201708615B
ZA201708615B ZA2017/08615A ZA201708615A ZA201708615B ZA 201708615 B ZA201708615 B ZA 201708615B ZA 2017/08615 A ZA2017/08615 A ZA 2017/08615A ZA 201708615 A ZA201708615 A ZA 201708615A ZA 201708615 B ZA201708615 B ZA 201708615B
Authority
ZA
South Africa
Prior art keywords
rock bolt
inflatable rock
inflatable
bolt
rock
Prior art date
Application number
ZA2017/08615A
Inventor
Barry Graeme Holfeld
Original Assignee
Barry Graeme Holfeld
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 Barry Graeme Holfeld filed Critical Barry Graeme Holfeld
Publication of ZA201708615B publication Critical patent/ZA201708615B/en

Links

Classifications

    • 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
    • E21D21/0073—Anchoring-bolts having an inflatable sleeve, e.g. hollow sleeve expanded by a fluid
    • 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
    • E21D21/004—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)
  • Pipe Accessories (AREA)
ZA2017/08615A 2015-08-12 2017-12-18 An inflatable rock bolt ZA201708615B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ZA201505772 2015-08-12
ZA201600773 2016-02-04
PCT/IB2016/054864 WO2017025933A1 (en) 2015-08-12 2016-08-12 An inflatable rock bolt

Publications (1)

Publication Number Publication Date
ZA201708615B true ZA201708615B (en) 2022-08-31

Family

ID=57983683

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA2017/08615A ZA201708615B (en) 2015-08-12 2017-12-18 An inflatable rock bolt

Country Status (2)

Country Link
WO (1) WO2017025933A1 (en)
ZA (1) ZA201708615B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3966429A4 (en) * 2019-05-06 2023-01-11 Barry Graeme Holfeld An inflatable rock bolt

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE427764B (en) * 1979-03-09 1983-05-02 Atlas Copco Ab MOUNTAIN CULTURAL PROCEDURES REALLY RUCH MOUNTED MOUNTAIN
JP3028174B2 (en) * 1993-12-27 2000-04-04 株式会社ケー・エフ・シー Rock bolt construction method
JP4680491B2 (en) * 2003-11-17 2011-05-11 日新製鋼株式会社 Steel pipe expansion lock bolt
JP6053116B2 (en) * 2012-09-11 2016-12-27 株式会社ケー・エフ・シー Atypical steel pipe for expansion and manufacturing method thereof

Also Published As

Publication number Publication date
WO2017025933A1 (en) 2017-02-16

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