GB1177289A - Improvements in Yielding Tunnel-Roof Supports - Google Patents

Improvements in Yielding Tunnel-Roof Supports

Info

Publication number
GB1177289A
GB1177289A GB2094667A GB2094667A GB1177289A GB 1177289 A GB1177289 A GB 1177289A GB 2094667 A GB2094667 A GB 2094667A GB 2094667 A GB2094667 A GB 2094667A GB 1177289 A GB1177289 A GB 1177289A
Authority
GB
United Kingdom
Prior art keywords
yielding
tunnel
arch
bolt
roof supports
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.)
Expired
Application number
GB2094667A
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.)
Bergbaustahl & Co GmbH
Original Assignee
Bergbaustahl & Co GmbH
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 Bergbaustahl & Co GmbH filed Critical Bergbaustahl & Co GmbH
Publication of GB1177289A publication Critical patent/GB1177289A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/14—Lining predominantly with metal
    • E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
    • E21D11/22—Clamps or other yieldable means for interconnecting adjacent arch members either rigidly, or allowing arch member parts to slide when subjected to excessive pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Clamps And Clips (AREA)
  • Lining And Supports For Tunnels (AREA)

Abstract

1,177,289. Yielding mine roof support arches. BERGBAUSTAHL G.m.b.H. & CO. 5 May, 1967 [7 May, 1966], No. 20946/67. Heading E1E. In a yielding mine roof support arch comprising telescopic arch-sections clamped together by a hook-bolt connection, the web of the bolt is provided with cutting edges C so that when the bolt is tilted by the roof it digs into the arch-sections to relieve the abutment member associated with such connections.
GB2094667A 1966-05-07 1967-05-05 Improvements in Yielding Tunnel-Roof Supports Expired GB1177289A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB0087027 1966-05-07

Publications (1)

Publication Number Publication Date
GB1177289A true GB1177289A (en) 1970-01-07

Family

ID=6983629

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2094667A Expired GB1177289A (en) 1966-05-07 1967-05-05 Improvements in Yielding Tunnel-Roof Supports

Country Status (2)

Country Link
AT (1) AT273853B (en)
GB (1) GB1177289A (en)

Also Published As

Publication number Publication date
DE1483882A1 (en) 1969-10-16
AT273853B (en) 1969-08-25

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