FR1320872A - Recoverable anchoring device - Google Patents

Recoverable anchoring device

Info

Publication number
FR1320872A
FR1320872A FR886531A FR886531A FR1320872A FR 1320872 A FR1320872 A FR 1320872A FR 886531 A FR886531 A FR 886531A FR 886531 A FR886531 A FR 886531A FR 1320872 A FR1320872 A FR 1320872A
Authority
FR
France
Prior art keywords
anchoring device
recoverable
recoverable anchoring
anchoring
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
FR886531A
Other languages
French (fr)
Inventor
Jean Andre Lucien Pierrard
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 filed Critical
Priority to FR886531A priority Critical patent/FR1320872A/en
Application granted granted Critical
Publication of FR1320872A publication Critical patent/FR1320872A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
    • E21D21/008—Anchoring or tensioning means

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)
FR886531A 1962-01-31 1962-01-31 Recoverable anchoring device Expired FR1320872A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR886531A FR1320872A (en) 1962-01-31 1962-01-31 Recoverable anchoring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR886531A FR1320872A (en) 1962-01-31 1962-01-31 Recoverable anchoring device

Publications (1)

Publication Number Publication Date
FR1320872A true FR1320872A (en) 1963-03-15

Family

ID=8771662

Family Applications (1)

Application Number Title Priority Date Filing Date
FR886531A Expired FR1320872A (en) 1962-01-31 1962-01-31 Recoverable anchoring device

Country Status (1)

Country Link
FR (1) FR1320872A (en)

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