FR1404639A - Device for fixing various protective layers on the walls of galleries or tunnels - Google Patents

Device for fixing various protective layers on the walls of galleries or tunnels

Info

Publication number
FR1404639A
FR1404639A FR975534A FR975534A FR1404639A FR 1404639 A FR1404639 A FR 1404639A FR 975534 A FR975534 A FR 975534A FR 975534 A FR975534 A FR 975534A FR 1404639 A FR1404639 A FR 1404639A
Authority
FR
France
Prior art keywords
galleries
tunnels
walls
protective layers
various protective
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
FR975534A
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 FR975534A priority Critical patent/FR1404639A/en
Application granted granted Critical
Publication of FR1404639A publication Critical patent/FR1404639A/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
    • E21D21/0086—Bearing plates

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)
FR975534A 1964-05-22 1964-05-22 Device for fixing various protective layers on the walls of galleries or tunnels Expired FR1404639A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR975534A FR1404639A (en) 1964-05-22 1964-05-22 Device for fixing various protective layers on the walls of galleries or tunnels

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR975534A FR1404639A (en) 1964-05-22 1964-05-22 Device for fixing various protective layers on the walls of galleries or tunnels

Publications (1)

Publication Number Publication Date
FR1404639A true FR1404639A (en) 1965-07-02

Family

ID=8830677

Family Applications (1)

Application Number Title Priority Date Filing Date
FR975534A Expired FR1404639A (en) 1964-05-22 1964-05-22 Device for fixing various protective layers on the walls of galleries or tunnels

Country Status (1)

Country Link
FR (1) FR1404639A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2315603A1 (en) * 1975-06-26 1977-01-21 Celtite Sa Item mounting on mine roof bolt - comprises plate with hole fitted over widened bolt end and rotated to lock it in place
EP0845579A1 (en) * 1996-12-02 1998-06-03 Xaver Jehle Tunnel lining

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2315603A1 (en) * 1975-06-26 1977-01-21 Celtite Sa Item mounting on mine roof bolt - comprises plate with hole fitted over widened bolt end and rotated to lock it in place
EP0845579A1 (en) * 1996-12-02 1998-06-03 Xaver Jehle Tunnel lining

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