ZA731854B - Improvements in or relating to mine roof supports - Google Patents
Improvements in or relating to mine roof supportsInfo
- Publication number
- ZA731854B ZA731854B ZA731854A ZA731854A ZA731854B ZA 731854 B ZA731854 B ZA 731854B ZA 731854 A ZA731854 A ZA 731854A ZA 731854 A ZA731854 A ZA 731854A ZA 731854 B ZA731854 B ZA 731854B
- Authority
- ZA
- South Africa
- Prior art keywords
- relating
- mine roof
- roof supports
- supports
- mine
- 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
-
- 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
- E21D23/0052—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor with advancing shifting devices connected therewith
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)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1397372A GB1391484A (en) | 1972-03-24 | 1972-03-24 | Mineral mining systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ZA731854B true ZA731854B (en) | 1974-01-30 |
Family
ID=10032733
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ZA731854A ZA731854B (en) | 1972-03-24 | 1973-03-16 | Improvements in or relating to mine roof supports |
| ZA732060A ZA732060B (en) | 1972-03-24 | 1973-03-26 | Electrical storage batteries |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ZA732060A ZA732060B (en) | 1972-03-24 | 1973-03-26 | Electrical storage batteries |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3856356A (en) |
| AU (1) | AU470683B2 (en) |
| GB (1) | GB1391484A (en) |
| ZA (2) | ZA731854B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4102550A (en) * | 1976-04-20 | 1978-07-25 | Peabody Coal Company | Mining method and apparatus |
| US4082360A (en) * | 1976-06-23 | 1978-04-04 | Peabody Coal Company | Mining apparatus and method |
| US4119346A (en) * | 1977-05-02 | 1978-10-10 | M.A.T. Industries, Inc. | Longwall mining system |
| US4836612A (en) * | 1987-08-25 | 1989-06-06 | Serata Geomechanics, Inc. | Stress control mining method and apparatus |
| DE10046497C2 (en) * | 2000-09-20 | 2002-12-12 | Dbt Gmbh | Extraction facility for underground ore mining operations and method for extracting mining products in underground ore mining operations |
| US8985699B2 (en) * | 2013-03-14 | 2015-03-24 | Seneca Industries Inc. | Mining methods and equipment |
| CN112483088B (en) * | 2020-12-15 | 2022-03-29 | 中国矿业大学(北京) | Fluidized unmanned reverse circulation coal mining method |
| CN113279759B (en) * | 2021-06-29 | 2024-03-22 | 上海煤科信息科技有限公司 | Geological exploration exploitation method and system for coal mining process |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE545472A (en) * | 1955-02-23 | |||
| GB991011A (en) * | 1962-09-03 | 1965-05-05 | Dowty Mining Equipment Ltd | Roof support assembly |
| GB1310228A (en) * | 1969-10-16 | 1973-03-14 | Gullick Dobson Ltd | Method of mining and an apparatus for the carrying out of said method |
-
1972
- 1972-03-24 GB GB1397372A patent/GB1391484A/en not_active Expired
-
1973
- 1973-03-16 ZA ZA731854A patent/ZA731854B/en unknown
- 1973-03-19 AU AU53458/73A patent/AU470683B2/en not_active Expired
- 1973-03-21 US US00343223A patent/US3856356A/en not_active Expired - Lifetime
- 1973-03-26 ZA ZA732060A patent/ZA732060B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| AU470683B2 (en) | 1976-03-25 |
| ZA732060B (en) | 1974-01-30 |
| AU5345873A (en) | 1974-09-19 |
| US3856356A (en) | 1974-12-24 |
| GB1391484A (en) | 1975-04-23 |
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