ZA801330B - Mine-roof supports - Google Patents

Mine-roof supports

Info

Publication number
ZA801330B
ZA801330B ZA00801330A ZA801330A ZA801330B ZA 801330 B ZA801330 B ZA 801330B ZA 00801330 A ZA00801330 A ZA 00801330A ZA 801330 A ZA801330 A ZA 801330A ZA 801330 B ZA801330 B ZA 801330B
Authority
ZA
South Africa
Prior art keywords
mine
roof supports
roof
supports
Prior art date
Application number
ZA00801330A
Inventor
A Allen
Original Assignee
Dobson Park Ind
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 Dobson Park Ind filed Critical Dobson Park Ind
Publication of ZA801330B publication Critical patent/ZA801330B/en

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
    • E21D23/0017—Pile type supports
    • E21D23/0021—Pile type supports comprising two walking elements
    • 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
    • E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor

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)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Bridges Or Land Bridges (AREA)
ZA00801330A 1979-03-09 1980-03-06 Mine-roof supports ZA801330B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7908418A GB2044331B (en) 1979-03-09 1979-03-09 Mine-roof supports

Publications (1)

Publication Number Publication Date
ZA801330B true ZA801330B (en) 1981-03-25

Family

ID=10503765

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA00801330A ZA801330B (en) 1979-03-09 1980-03-06 Mine-roof supports

Country Status (5)

Country Link
AU (1) AU5622180A (en)
GB (1) GB2044331B (en)
IN (1) IN152972B (en)
MX (1) MX150136A (en)
ZA (1) ZA801330B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114233359B (en) * 2022-01-24 2024-03-01 中煤能源研究院有限责任公司 Roof-caving type gangue filling hydraulic support and filling method

Also Published As

Publication number Publication date
IN152972B (en) 1984-05-12
AU5622180A (en) 1980-09-11
GB2044331A (en) 1980-10-15
GB2044331B (en) 1984-05-31
MX150136A (en) 1984-03-19

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