FR2288852A1 - Bouclier de protection pour une pile de soutenement equipee de fleches avec prolonges telescopiques - Google Patents

Bouclier de protection pour une pile de soutenement equipee de fleches avec prolonges telescopiques

Info

Publication number
FR2288852A1
FR2288852A1 FR7440598A FR7440598A FR2288852A1 FR 2288852 A1 FR2288852 A1 FR 2288852A1 FR 7440598 A FR7440598 A FR 7440598A FR 7440598 A FR7440598 A FR 7440598A FR 2288852 A1 FR2288852 A1 FR 2288852A1
Authority
FR
France
Prior art keywords
roof
support
elements
plates
arrows
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.)
Granted
Application number
FR7440598A
Other languages
English (en)
French (fr)
Other versions
FR2288852B3 (https=
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.)
Bennes Marrel SA
Original Assignee
Bennes Marrel SA
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 Bennes Marrel SA filed Critical Bennes Marrel SA
Priority to FR7440598A priority Critical patent/FR2288852A1/fr
Publication of FR2288852A1 publication Critical patent/FR2288852A1/fr
Application granted granted Critical
Publication of FR2288852B3 publication Critical patent/FR2288852B3/fr
Granted legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • E21D23/0004—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face
    • E21D23/0034—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face comprising a goaf shield articulated to a base member
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • E21D23/03—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor having protective means, e.g. shields, for preventing or impeding entry of loose material into the working space or support

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Bridges Or Land Bridges (AREA)
  • Tents Or Canopies (AREA)
FR7440598A 1974-10-24 1974-10-24 Bouclier de protection pour une pile de soutenement equipee de fleches avec prolonges telescopiques Granted FR2288852A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7440598A FR2288852A1 (fr) 1974-10-24 1974-10-24 Bouclier de protection pour une pile de soutenement equipee de fleches avec prolonges telescopiques

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7440598A FR2288852A1 (fr) 1974-10-24 1974-10-24 Bouclier de protection pour une pile de soutenement equipee de fleches avec prolonges telescopiques

Publications (2)

Publication Number Publication Date
FR2288852A1 true FR2288852A1 (fr) 1976-05-21
FR2288852B3 FR2288852B3 (https=) 1976-12-10

Family

ID=9145901

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7440598A Granted FR2288852A1 (fr) 1974-10-24 1974-10-24 Bouclier de protection pour une pile de soutenement equipee de fleches avec prolonges telescopiques

Country Status (1)

Country Link
FR (1) FR2288852A1 (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115992727A (zh) * 2023-02-28 2023-04-21 四川川煤石洞沟煤业有限责任公司 一种可调缓冲式急倾斜综采护巷支架

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115992727A (zh) * 2023-02-28 2023-04-21 四川川煤石洞沟煤业有限责任公司 一种可调缓冲式急倾斜综采护巷支架
CN115992727B (zh) * 2023-02-28 2023-11-03 四川川煤石洞沟煤业有限责任公司 一种可调缓冲式急倾斜综采护巷支架

Also Published As

Publication number Publication date
FR2288852B3 (https=) 1976-12-10

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