FR68663E - Keyed joint for t and h profiles, in particular for mine arch support - Google Patents

Keyed joint for t and h profiles, in particular for mine arch support

Info

Publication number
FR68663E
FR68663E FR68663DA FR68663E FR 68663 E FR68663 E FR 68663E FR 68663D A FR68663D A FR 68663DA FR 68663 E FR68663 E FR 68663E
Authority
FR
France
Prior art keywords
profiles
arch support
keyed joint
mine arch
mine
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
Other languages
French (fr)
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.)
Bochumer Eisenhuette Heintzmann GmbH and Co KG
Original Assignee
Bochumer Eisenhuette Heintzmann GmbH and Co KG
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 Bochumer Eisenhuette Heintzmann GmbH and Co KG filed Critical Bochumer Eisenhuette Heintzmann GmbH and Co KG
Application granted granted Critical
Publication of FR68663E publication Critical patent/FR68663E/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)
FR68663D 1955-01-31 1955-01-31 Keyed joint for t and h profiles, in particular for mine arch support Expired FR68663E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR68663T 1955-01-31

Publications (1)

Publication Number Publication Date
FR68663E true FR68663E (en) 1958-06-09

Family

ID=8700665

Family Applications (1)

Application Number Title Priority Date Filing Date
FR68663D Expired FR68663E (en) 1955-01-31 1955-01-31 Keyed joint for t and h profiles, in particular for mine arch support

Country Status (1)

Country Link
FR (1) FR68663E (en)

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