ZA763392B - Method and apparatus for supporting the roof of an underground mine working - Google Patents
Method and apparatus for supporting the roof of an underground mine workingInfo
- Publication number
- ZA763392B ZA763392B ZA763392A ZA763392A ZA763392B ZA 763392 B ZA763392 B ZA 763392B ZA 763392 A ZA763392 A ZA 763392A ZA 763392 A ZA763392 A ZA 763392A ZA 763392 B ZA763392 B ZA 763392B
- Authority
- ZA
- South Africa
- Prior art keywords
- roof
- supporting
- underground mine
- mine working
- working
- 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
- E21D23/0004—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
- E21D23/0026—Pile type supports comprising three walking elements
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D19/00—Provisional protective covers for working space
- E21D19/02—Provisional protective covers for working space for use in longwall working
-
- 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
- E21D23/06—Special mine caps or special tops of pit-props for permitting step-by-step movement
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)
- Paper (AREA)
- Shovels (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2525978A DE2525978C3 (de) | 1975-06-11 | 1975-06-11 | Verfahren und Vorrichtung zur großflächigen Sicherung des Hangendbereichs in Abbaubetrieben mit wanderndem Ausbau |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA763392B true ZA763392B (en) | 1977-05-25 |
Family
ID=5948805
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA763392A ZA763392B (en) | 1975-06-11 | 1976-06-08 | Method and apparatus for supporting the roof of an underground mine working |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE2525978C3 (xx) |
ZA (1) | ZA763392B (xx) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111677538A (zh) * | 2020-06-16 | 2020-09-18 | 陕西竹园嘉原矿业有限公司 | 一种循环滚动式超前液压支架及使用方法 |
-
1975
- 1975-06-11 DE DE2525978A patent/DE2525978C3/de not_active Expired
-
1976
- 1976-06-08 ZA ZA763392A patent/ZA763392B/xx unknown
Also Published As
Publication number | Publication date |
---|---|
DE2525978B2 (de) | 1977-09-15 |
DE2525978A1 (de) | 1976-12-16 |
DE2525978C3 (de) | 1978-04-20 |
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