EP2251526A3 - Self-drilling anchoring element - Google Patents

Self-drilling anchoring element Download PDF

Info

Publication number
EP2251526A3
EP2251526A3 EP10160697.8A EP10160697A EP2251526A3 EP 2251526 A3 EP2251526 A3 EP 2251526A3 EP 10160697 A EP10160697 A EP 10160697A EP 2251526 A3 EP2251526 A3 EP 2251526A3
Authority
EP
European Patent Office
Prior art keywords
reactive resin
hardener
self
mixed state
hardenable
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.)
Granted
Application number
EP10160697.8A
Other languages
German (de)
French (fr)
Other versions
EP2251526B1 (en
EP2251526A2 (en
Inventor
Kolja Wieczorek
Astrid Buder
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.)
DSI Underground Australia Pty Ltd
Original Assignee
Dywidag Systems International Pty Ltd
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 Dywidag Systems International Pty Ltd filed Critical Dywidag Systems International Pty Ltd
Priority to PL10160697T priority Critical patent/PL2251526T3/en
Publication of EP2251526A2 publication Critical patent/EP2251526A2/en
Publication of EP2251526A3 publication Critical patent/EP2251526A3/en
Application granted granted Critical
Publication of EP2251526B1 publication Critical patent/EP2251526B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • E21D20/025—Grouting with organic components, e.g. resin
    • E21D20/026—Cartridges; Grouting charges
    • 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
    • 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
    • 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
    • E21D21/0053—Anchoring-bolts in the form of lost drilling rods

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)
  • Joining Of Building Structures In Genera (AREA)
  • Piles And Underground Anchors (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

Ein selbstbohrendes Befestigungselement (11) zur chemischen Verankerung in einem Untergrund (6) weist einen hohlzylindrischen Aufnahmekörper (12) auf, der an einem Ende (13) einen Bohrkopf (16) aufweist und in dem eine auspressbare, aushärtbare mehrkomponentige Masse (26) vorgesehen ist. Die aushärtbare Masse (26) umfasst einen Härter (27) und ein Reaktivharz (28), die getrennt von einander gelagert sind und im gemischten Zustand aushärten. Im Bohrkopf (16) sind Durchtrittsöffnungen (17, 19) für die aushärtbare Masse (26) vorgesehen. Das Reaktivharz (28) umfasst zwei unterschiedliche Formulierungen (29, 30), die hintereinander angeordnet sind, wobei die zweite Formulierung (30) des Reaktivharzes (28), welche im gemischten Zustand mit dem Härter (27) schnell härtet, in Bezug auf die Setzrichtung (S) des Befestigungselementes (11) hinter der ersten Formulierung (29) des Reaktivharzes (28) angeordnet ist, welche im gemischten Zustand mit dem Härter (27) langsamer härtet.

Figure imgaf001
A self-drilling fastener (11) for chemical anchoring in a substrate (6) has a hollow cylindrical receiving body (12) having at one end (13) a drill head (16) and in which an expansible, hardenable multicomponent mass (26) provided is. The hardenable mass (26) comprises a hardener (27) and a reactive resin (28), which are stored separately from each other and harden in the mixed state. In the drill head (16) through openings (17, 19) for the hardenable mass (26) are provided. The reactive resin (28) comprises two different formulations (29, 30) arranged one behind the other, the second formulation (30) of the reactive resin (28) curing rapidly in the mixed state with the hardener (27) with respect to Setting direction (S) of the fastening element (11) behind the first formulation (29) of the reactive resin (28) is arranged, which hardens more slowly in the mixed state with the hardener (27).
Figure imgaf001
EP10160697.8A 2009-05-08 2010-04-22 Self-drilling anchoring element Not-in-force EP2251526B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL10160697T PL2251526T3 (en) 2009-05-08 2010-04-22 Self-drilling anchoring element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009002951A DE102009002951A1 (en) 2009-05-08 2009-05-08 Self-drilling fastener

Publications (3)

Publication Number Publication Date
EP2251526A2 EP2251526A2 (en) 2010-11-17
EP2251526A3 true EP2251526A3 (en) 2016-09-07
EP2251526B1 EP2251526B1 (en) 2017-12-20

Family

ID=42321179

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10160697.8A Not-in-force EP2251526B1 (en) 2009-05-08 2010-04-22 Self-drilling anchoring element

Country Status (8)

Country Link
US (1) US20100284762A1 (en)
EP (1) EP2251526B1 (en)
AU (1) AU2010201788B2 (en)
CA (1) CA2703432A1 (en)
DE (1) DE102009002951A1 (en)
PL (1) PL2251526T3 (en)
RU (1) RU2010118034A (en)
ZA (1) ZA201003259B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011005855A1 (en) * 2011-03-21 2012-09-27 Hilti Aktiengesellschaft rock bolt
DE102011005960A1 (en) 2011-03-23 2012-09-27 Hilti Aktiengesellschaft Adhesive pack and its use with an anchoring element
AU2012267199B2 (en) * 2011-06-07 2015-07-30 Fci Holdings Delaware, Inc Improvements in self-drilling rock bolts
CA2777995C (en) * 2011-06-08 2018-10-30 Giddicca (Pty) Ltd An adhesive containing tubular rock anchor
AU2012203236B2 (en) * 2011-06-08 2015-02-19 Giddicca (Pty) Ltd An Adhesive Containing Tubular Rock Anchor
DE102011078769A1 (en) 2011-07-07 2013-01-10 Hilti Aktiengesellschaft rock bolt
AU2015309690A1 (en) * 2014-08-28 2017-04-20 Kevin Frank STACEY Rock bolt and method of stabilizing excavations
AU2017218453B2 (en) * 2016-02-09 2022-08-04 DSI Underground Australia Pty Limited Rock bolt adapter
DE102020134867A1 (en) * 2020-12-23 2022-06-23 JMBG GmbH + Co KG Hollow bar composite anchor with static mixed system
AU2022266849A1 (en) * 2021-04-27 2023-10-12 Oka Rock Bolt Technologies Pty Limited A drill head injection system for a self-drilling rock bolt assembly

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4055051A (en) * 1976-01-08 1977-10-25 The United States Of America As Represented By The Secretary Of The Interior Unitary drill bit and roof bolt
EP0163019A1 (en) * 1984-04-30 1985-12-04 HILTI Aktiengesellschaft Destructible cartridge for multicomponent masses
US4601614A (en) * 1984-02-22 1986-07-22 Lane William L Rockbolt
US6468010B2 (en) * 2000-04-10 2002-10-22 Hilti Aktiengesellschaft Fastening element

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT296192B (en) * 1969-07-11 1972-02-10 Becorit Grubenausbau Gmbh Easily destructible adhesive cartridge
US3702060A (en) * 1971-02-25 1972-11-07 James Deans Cumming Resin-bonded expansion shell
US4303354A (en) 1979-03-28 1981-12-01 Peabody Coal Company Mine roof bolting
DE3226602A1 (en) 1982-07-16 1984-01-19 Hilti AG, 9494 Schaan HARDENABLE RESIN MATERIALS AND THEIR USE
JPS59180000A (en) * 1983-03-31 1984-10-12 東海ゴム工業株式会社 Capsule for fixation
US5051038A (en) * 1990-04-06 1991-09-24 Ingersoll-Rand Company Barrier plug for dynamic rock stabilizing fixture
DE4231161A1 (en) 1992-09-17 1994-03-24 Hilti Ag Mortar and device for fixing anchoring means in boreholes
DE10017751B4 (en) * 2000-04-10 2008-11-20 Hilti Aktiengesellschaft rock bolts
DE10017763B4 (en) * 2000-04-10 2008-11-20 Hilti Aktiengesellschaft rock bolts
DE10301968A1 (en) * 2003-01-20 2004-07-29 Hilti Ag Fixing element used in the mining/tunnel construction industry comprises a mortar composition and a channel section arranged in an inner tube held by spacers between the outer wall of the inner tube and the inner wall of a receiving body
DE10336043B4 (en) * 2003-08-01 2006-12-14 Hilti Ag Xings
DE10336040B4 (en) * 2003-08-01 2006-12-28 Hilti Ag Adapter for a self-drilling rock anchor
US7338234B2 (en) * 2004-12-20 2008-03-04 Dywidag-Systems International Pty Limited Rock bolt

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4055051A (en) * 1976-01-08 1977-10-25 The United States Of America As Represented By The Secretary Of The Interior Unitary drill bit and roof bolt
US4601614A (en) * 1984-02-22 1986-07-22 Lane William L Rockbolt
EP0163019A1 (en) * 1984-04-30 1985-12-04 HILTI Aktiengesellschaft Destructible cartridge for multicomponent masses
US6468010B2 (en) * 2000-04-10 2002-10-22 Hilti Aktiengesellschaft Fastening element

Also Published As

Publication number Publication date
DE102009002951A1 (en) 2010-11-11
PL2251526T3 (en) 2018-07-31
US20100284762A1 (en) 2010-11-11
RU2010118034A (en) 2011-11-20
AU2010201788B2 (en) 2012-04-19
ZA201003259B (en) 2011-04-28
CA2703432A1 (en) 2010-11-08
EP2251526B1 (en) 2017-12-20
EP2251526A2 (en) 2010-11-17
AU2010201788A1 (en) 2010-11-25

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