FR1299443A - Improvements made to retaining frames for mine clearance corridors - Google Patents

Improvements made to retaining frames for mine clearance corridors

Info

Publication number
FR1299443A
FR1299443A FR872500A FR872500A FR1299443A FR 1299443 A FR1299443 A FR 1299443A FR 872500 A FR872500 A FR 872500A FR 872500 A FR872500 A FR 872500A FR 1299443 A FR1299443 A FR 1299443A
Authority
FR
France
Prior art keywords
corridors
improvements made
retaining frames
mine clearance
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
FR872500A
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
Priority to IT699999D priority Critical patent/IT699999A/it
Application filed by Bochumer Eisenhuette Heintzmann GmbH and Co KG filed Critical Bochumer Eisenhuette Heintzmann GmbH and Co KG
Priority to FR872500A priority patent/FR1299443A/en
Priority to FR882292A priority patent/FR80824E/en
Application granted granted Critical
Publication of FR1299443A publication Critical patent/FR1299443A/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
    • E21D11/183—Supporting means for arch members, not provided for in E21D11/22
    • 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
    • E21D11/186—Pre-stressing or dismantling devices therefor

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)
FR872500A 1961-09-06 1961-09-06 Improvements made to retaining frames for mine clearance corridors Expired FR1299443A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
IT699999D IT699999A (en) 1961-09-06
FR872500A FR1299443A (en) 1961-09-06 1961-09-06 Improvements made to retaining frames for mine clearance corridors
FR882292A FR80824E (en) 1961-09-06 1961-12-18 Improvements made to retaining frames for mine clearance corridors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR872500A FR1299443A (en) 1961-09-06 1961-09-06 Improvements made to retaining frames for mine clearance corridors

Publications (1)

Publication Number Publication Date
FR1299443A true FR1299443A (en) 1962-07-20

Family

ID=8762370

Family Applications (1)

Application Number Title Priority Date Filing Date
FR872500A Expired FR1299443A (en) 1961-09-06 1961-09-06 Improvements made to retaining frames for mine clearance corridors

Country Status (2)

Country Link
FR (1) FR1299443A (en)
IT (1) IT699999A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1209085B (en) * 1963-09-21 1966-01-20 Bochumer Eisen Heintzmann Track extension with a pre-tensioning device arranged in the overlapping area of the extension segments
EP3502414A1 (en) * 2017-12-22 2019-06-26 Soletanche Freyssinet Method for reinforcing a structure and system for implementing same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1209085B (en) * 1963-09-21 1966-01-20 Bochumer Eisen Heintzmann Track extension with a pre-tensioning device arranged in the overlapping area of the extension segments
EP3502414A1 (en) * 2017-12-22 2019-06-26 Soletanche Freyssinet Method for reinforcing a structure and system for implementing same

Also Published As

Publication number Publication date
IT699999A (en)

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