EP2666960A3 - Blast protection for a convergence bolt - Google Patents

Blast protection for a convergence bolt Download PDF

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Publication number
EP2666960A3
EP2666960A3 EP13168916.8A EP13168916A EP2666960A3 EP 2666960 A3 EP2666960 A3 EP 2666960A3 EP 13168916 A EP13168916 A EP 13168916A EP 2666960 A3 EP2666960 A3 EP 2666960A3
Authority
EP
European Patent Office
Prior art keywords
bolt
convergence
blast protection
blast
coupling
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.)
Withdrawn
Application number
EP13168916.8A
Other languages
German (de)
French (fr)
Other versions
EP2666960A2 (en
Inventor
Georg Rothbucher
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP2666960A2 publication Critical patent/EP2666960A2/en
Publication of EP2666960A3 publication Critical patent/EP2666960A3/en
Withdrawn legal-status Critical Current

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
    • E21D21/0093—Accessories
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
    • E21F17/18—Special adaptations of signalling or alarm devices
    • E21F17/185—Rock-pressure control devices with or without alarm devices; Alarm devices in case of roof subsidence

Abstract

Ein stabförmiger Konvergenzbolzen (10) mit Sprengschutz hat an seinem innerhalb des rohrförmigen Sprengschutzes liegenden Ende einen Kopplungsabschnitt (14) zum Ankoppeln eines Messmittels sowie ein sich über mindestens einen Teil seiner Länge erstreckendes Außengewinde (12), auf das der Sprengschutz aufschraubbar ist.

Figure imgaf001
A rod-shaped convergence bolt (10) with blast protection has at its end located within the tubular blast shield end a coupling portion (14) for coupling a measuring means and over at least a portion of its length extending external thread (12) onto which the blast shield can be screwed.
Figure imgaf001
EP13168916.8A 2012-05-24 2013-05-23 Blast protection for a convergence bolt Withdrawn EP2666960A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202012101908U DE202012101908U1 (en) 2012-05-24 2012-05-24 convergence bolts

Publications (2)

Publication Number Publication Date
EP2666960A2 EP2666960A2 (en) 2013-11-27
EP2666960A3 true EP2666960A3 (en) 2018-01-24

Family

ID=48537780

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13168916.8A Withdrawn EP2666960A3 (en) 2012-05-24 2013-05-23 Blast protection for a convergence bolt

Country Status (2)

Country Link
EP (1) EP2666960A3 (en)
DE (1) DE202012101908U1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109184793B (en) * 2018-08-29 2020-02-07 东北大学 Method for carrying out on-site test on rock burst prevention capacity of anchor rod in underground engineering excavation process

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04286910A (en) * 1991-03-15 1992-10-12 Toda Constr Co Ltd Method and apparatus for automatically measuring in-cavity displacement of tunnel
DE4208224A1 (en) * 1992-03-14 1993-09-16 Gloetzl Baumesstech Measurement of rock and soil, esp. during tunnelling in unstable material, - involves using measurement head mounted on stable pipe enclosing expanded casing and carrying force measurement cell
KR100685008B1 (en) * 2004-11-08 2007-02-22 이근호 Pin apparatus for measuring displacement of tunnel's inner surface
US20090191005A1 (en) * 2008-01-28 2009-07-30 Frank Schmidt Ground anchor or rock anchor with an anchor tension member comprised of one or more individual elements with corrosion-protected anchor head design
US20110036025A1 (en) * 2009-08-13 2011-02-17 Boulay Luke F Ground Anchor
CN202066515U (en) * 2011-06-02 2011-12-07 中铁一局集团有限公司 Multifunctional tunnel monitoring and measuring peg
CN202209951U (en) * 2011-08-19 2012-05-02 葛洲坝集团试验检测有限公司 Convergence measurement point equipment

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04286910A (en) * 1991-03-15 1992-10-12 Toda Constr Co Ltd Method and apparatus for automatically measuring in-cavity displacement of tunnel
DE4208224A1 (en) * 1992-03-14 1993-09-16 Gloetzl Baumesstech Measurement of rock and soil, esp. during tunnelling in unstable material, - involves using measurement head mounted on stable pipe enclosing expanded casing and carrying force measurement cell
KR100685008B1 (en) * 2004-11-08 2007-02-22 이근호 Pin apparatus for measuring displacement of tunnel's inner surface
US20090191005A1 (en) * 2008-01-28 2009-07-30 Frank Schmidt Ground anchor or rock anchor with an anchor tension member comprised of one or more individual elements with corrosion-protected anchor head design
US20110036025A1 (en) * 2009-08-13 2011-02-17 Boulay Luke F Ground Anchor
CN202066515U (en) * 2011-06-02 2011-12-07 中铁一局集团有限公司 Multifunctional tunnel monitoring and measuring peg
CN202209951U (en) * 2011-08-19 2012-05-02 葛洲坝集团试验检测有限公司 Convergence measurement point equipment

Also Published As

Publication number Publication date
DE202012101908U1 (en) 2013-08-26
EP2666960A2 (en) 2013-11-27

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