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FR1156340A - Improvements made to pushbuttons for mine tunnel support frames - Google Patents

Improvements made to pushbuttons for mine tunnel support frames

Info

Publication number
FR1156340A
FR1156340A FR1156340DA FR1156340A FR 1156340 A FR1156340 A FR 1156340A FR 1156340D A FR1156340D A FR 1156340DA FR 1156340 A FR1156340 A FR 1156340A
Authority
FR
France
Prior art keywords
pushbuttons
support frames
improvements made
tunnel support
mine tunnel
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 GES fur GRUBENAUSBAU
Original Assignee
BOCHUMER GES fur GRUBENAUSBAU
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 GES fur GRUBENAUSBAU filed Critical BOCHUMER GES fur GRUBENAUSBAU
Application granted granted Critical
Publication of FR1156340A publication Critical patent/FR1156340A/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
    • E21D11/28—Longitudinal struts, i.e. longitudinal connections between adjoining arches

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)
FR1156340D 1955-08-29 1956-06-30 Improvements made to pushbuttons for mine tunnel support frames Expired FR1156340A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1156340X 1955-08-29

Publications (1)

Publication Number Publication Date
FR1156340A true FR1156340A (en) 1958-05-14

Family

ID=7727995

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1156340D Expired FR1156340A (en) 1955-08-29 1956-06-30 Improvements made to pushbuttons for mine tunnel support frames

Country Status (1)

Country Link
FR (1) FR1156340A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2714620A1 (en) * 1977-04-01 1978-10-12 Bergwerksverband Gmbh REINFORCEMENT FOR COMPOSITE REMOVAL FROM STEEL REINFORCED CONCRETE, ESPECIALLY FROM SPRAY CONCRETE

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2714620A1 (en) * 1977-04-01 1978-10-12 Bergwerksverband Gmbh REINFORCEMENT FOR COMPOSITE REMOVAL FROM STEEL REINFORCED CONCRETE, ESPECIALLY FROM SPRAY CONCRETE

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