PL438538A1 - Anchor housing load absorber - Google Patents

Anchor housing load absorber

Info

Publication number
PL438538A1
PL438538A1 PL438538A PL43853821A PL438538A1 PL 438538 A1 PL438538 A1 PL 438538A1 PL 438538 A PL438538 A PL 438538A PL 43853821 A PL43853821 A PL 43853821A PL 438538 A1 PL438538 A1 PL 438538A1
Authority
PL
Poland
Prior art keywords
anchor
bolt
domed
load absorber
head
Prior art date
Application number
PL438538A
Other languages
Polish (pl)
Inventor
Krzysztof Skrzypkowski
Original Assignee
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie
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 Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie filed Critical Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie
Priority to PL438538A priority Critical patent/PL438538A1/en
Priority to EP22185478.9A priority patent/EP4166750B1/en
Publication of PL438538A1 publication Critical patent/PL438538A1/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
    • E21D21/02—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection having means for indicating tension
    • 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
    • E21D21/0046—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts formed by a plurality of elements arranged longitudinally
    • 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
    • E21D21/0086—Bearing plates

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)
  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Piles And Underground Anchors (AREA)

Abstract

Absorber obciążenia obudowy kotwowej stanowi kopułowa podkładka (6) kotwowa oraz śruba specjalna posiadająca na jednym końcu, zaopatrzony w gwint, walcowy odcinek (5a), przechodzący w stożkowy trzpień (5b), którego średnica zwiększa się w kierunku drugiego końca, wyposażonego w łeb (5d) o dowolnym, znanym kształcie, przy czym w położeniu roboczym, śruba przełożona jest przez otwór w kopułowej podkładce (6) kotwowej, odwróconej wypukłością ku wyrobisku i połączona z żerdzią kotwy (1) za pomocą łączącej tulejki (4) nakręconej na gwintowany koniec żerdzi kotwy (1) oraz na nagwintowany odcinek walcowy (5a) śruby tak, że otwór kopułowej podkładki (6) kotwowej, obejmuje stożkowy trzpień (5b) śruby w okolicy połowy jego długości, a ponadto odcinek stożkowego trzpienia (5b) od strony łba posiada znacznik wytężenia (5c).The load absorber of the anchor housing is a domed anchor washer (6) and a special bolt with a threaded cylindrical section (5a) at one end, passing into a conical pin (5b), the diameter of which increases towards the other end, equipped with a head ( 5d) of any known shape, and in the working position, the bolt is put through the hole in the domed anchor pad (6), the convexity turned towards the excavation, and connected to the anchor rod (1) by means of a connecting sleeve (4) screwed onto the threaded end the anchor rod (1) and the threaded cylindrical section (5a) of the bolt so that the opening of the domed anchor washer (6) covers the conical shank (5b) of the bolt in the vicinity of its half length, and moreover, the section of the conical shank (5b) from the side of the head has effort marker (5c).

PL438538A 2021-07-20 2021-07-20 Anchor housing load absorber PL438538A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL438538A PL438538A1 (en) 2021-07-20 2021-07-20 Anchor housing load absorber
EP22185478.9A EP4166750B1 (en) 2021-07-20 2022-07-18 Anchor housing load absorber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL438538A PL438538A1 (en) 2021-07-20 2021-07-20 Anchor housing load absorber

Publications (1)

Publication Number Publication Date
PL438538A1 true PL438538A1 (en) 2023-01-23

Family

ID=84982761

Family Applications (1)

Application Number Title Priority Date Filing Date
PL438538A PL438538A1 (en) 2021-07-20 2021-07-20 Anchor housing load absorber

Country Status (2)

Country Link
EP (1) EP4166750B1 (en)
PL (1) PL438538A1 (en)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2850937A (en) * 1955-04-28 1958-09-09 Eldon K Ralston Snap type bolt tension indicator
US3133468A (en) * 1961-03-21 1964-05-19 James D Cumming Tension indicating device
CA2018970A1 (en) 1990-06-13 1991-12-13 Gordon R. Friesen Rockbolt load indicator
AU664186B2 (en) * 1991-08-30 1995-11-09 Technological Resources Pty Limited Rock bolt load sensor
RO118766B1 (en) * 1999-03-02 2003-10-30 Adam Szabo Apparatus for controlling the axial load of the rock bolt
PL192588B1 (en) 2000-12-15 2006-11-30 Glowny Instytut Gornictwa Energy absorber
PL67289Y1 (en) 2012-03-26 2014-07-31 Główny Inst Górnictwa Anchor load indicator
PL226879B1 (en) 2014-07-11 2017-09-29 Akademia Górniczo Hutnicza Im Stanisława Staszica W Krakowie Method for measuring the anchor loading and the dynamometric anchor washer
ZA201703428B (en) * 2016-06-09 2020-10-28 Ncm Innovations Pty Ltd Progressive load indicator

Also Published As

Publication number Publication date
EP4166750A1 (en) 2023-04-19
EP4166750C0 (en) 2024-06-05
EP4166750B1 (en) 2024-06-05

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