ZA767269B - Self-advancing mine roof supports - Google Patents

Self-advancing mine roof supports

Info

Publication number
ZA767269B
ZA767269B ZA767269A ZA767269A ZA767269B ZA 767269 B ZA767269 B ZA 767269B ZA 767269 A ZA767269 A ZA 767269A ZA 767269 A ZA767269 A ZA 767269A ZA 767269 B ZA767269 B ZA 767269B
Authority
ZA
South Africa
Prior art keywords
self
mine roof
roof supports
advancing mine
advancing
Prior art date
Application number
ZA767269A
Inventor
F Small
K Darbyshire
Original Assignee
Gullick Dobson Ltd
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 Gullick Dobson Ltd filed Critical Gullick Dobson Ltd
Publication of ZA767269B publication Critical patent/ZA767269B/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
    • E21D23/12—Control, e.g. using remote control
    • E21D23/14—Effecting automatic sequential movement of supports, e.g. one behind the other
    • 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
    • E21D23/12—Control, e.g. using remote control
    • E21D23/14—Effecting automatic sequential movement of supports, e.g. one behind the other
    • E21D23/144—Measuring the advance of support units with respect to internal points of reference, e.g. with respect to neighboring support units or extension of a cylinder
    • 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
    • E21D23/12—Control, e.g. using remote control
    • E21D23/14—Effecting automatic sequential movement of supports, e.g. one behind the other
    • E21D23/146—Transmission of signals and commands by cable

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)
  • Control Of Conveyors (AREA)
ZA767269A 1975-12-23 1976-12-07 Self-advancing mine roof supports ZA767269B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB52537/75A GB1570069A (en) 1975-12-23 1975-12-23 Monitoring of self-advancing mine roof support alignment

Publications (1)

Publication Number Publication Date
ZA767269B true ZA767269B (en) 1977-11-30

Family

ID=10464287

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA767269A ZA767269B (en) 1975-12-23 1976-12-07 Self-advancing mine roof supports

Country Status (2)

Country Link
GB (1) GB1570069A (en)
ZA (1) ZA767269B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112145231A (en) * 2020-08-20 2020-12-29 中煤科工开采研究院有限公司 Early warning method for working condition of hydraulic support
CN112796801B (en) * 2021-01-27 2022-11-29 六盘水师范学院 Fully mechanized coal mining support capable of monitoring coal caving range

Also Published As

Publication number Publication date
GB1570069A (en) 1980-06-25

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