ZA767269B - Self-advancing mine roof supports - Google Patents
Self-advancing mine roof supportsInfo
- 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
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)
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)
| 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 | A fully mechanized mining support capable of monitoring the range of coal discharge |
-
1975
- 1975-12-23 GB GB52537/75A patent/GB1570069A/en not_active Expired
-
1976
- 1976-12-07 ZA ZA767269A patent/ZA767269B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB1570069A (en) | 1980-06-25 |
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