BE525023A - - Google Patents

Info

Publication number
BE525023A
BE525023A BE525023DA BE525023A BE 525023 A BE525023 A BE 525023A BE 525023D A BE525023D A BE 525023DA BE 525023 A BE525023 A BE 525023A
Authority
BE
Belgium
Prior art keywords
frame
support frame
bending body
terized
charac
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE525023A publication Critical patent/BE525023A/fr

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/14Lining predominantly with metal
    • E21D11/18Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
    • E21D11/183Supporting means for arch members, not provided for in E21D11/22
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/14Telescopic props
    • E21D15/16Telescopic props with parts held together by positive means, with or without relative sliding movement when the prop is subject to excessive pressure
    • E21D15/22Telescopic props with parts held together by positive means, with or without relative sliding movement when the prop is subject to excessive pressure with member, pin, cross- piece, or the like, ruptured, sheared through, or permanently deformed upon excessive pressure

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)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Lining And Supports For Tunnels (AREA)
BE525023D BE525023A (enExample)

Publications (1)

Publication Number Publication Date
BE525023A true BE525023A (enExample)

Family

ID=159451

Family Applications (1)

Application Number Title Priority Date Filing Date
BE525023D BE525023A (enExample)

Country Status (1)

Country Link
BE (1) BE525023A (enExample)

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