ZA757015B - Improvements in or relating to selfadvancing mine roof supports - Google Patents
Improvements in or relating to selfadvancing mine roof supportsInfo
- Publication number
- ZA757015B ZA757015B ZA00757015A ZA757015A ZA757015B ZA 757015 B ZA757015 B ZA 757015B ZA 00757015 A ZA00757015 A ZA 00757015A ZA 757015 A ZA757015 A ZA 757015A ZA 757015 B ZA757015 B ZA 757015B
- Authority
- ZA
- South Africa
- Prior art keywords
- selfadvancing
- relating
- mine roof
- roof supports
- supports
- 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
- E21D23/04—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
- E21D23/0427—Shield operating devices; Hinges 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
- E21D23/0004—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
- E21D23/0034—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 comprising a goaf shield articulated to a base member
- E21D23/0043—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 comprising a goaf shield articulated to a base member and supported by two or more rows of struts parallel to the working face
-
- 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
- E21D23/03—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor having protective means, e.g. shields, for preventing or impeding entry of loose material into the working space or support
-
- 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
- E21D23/0418—Positioning devices and stabilizing means for the props
-
- 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
- E21D23/0472—Supports specially adapted for people walking or transporting material
-
- 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
-
- 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
- E21D23/08—Advancing mechanisms
- E21D23/081—Advancing mechanisms forming parts of the roof supports
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)
- Lining And Supports For Tunnels (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB30347/75A GB1494284A (en) | 1975-07-19 | 1975-07-19 | Self-advancing mine roof supports |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA757015B true ZA757015B (en) | 1976-10-27 |
Family
ID=10306212
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA00757015A ZA757015B (en) | 1975-07-19 | 1975-11-07 | Improvements in or relating to selfadvancing mine roof supports |
Country Status (7)
Country | Link |
---|---|
US (1) | US4102140A (de) |
JP (1) | JPS5212602A (de) |
AU (1) | AU497824B2 (de) |
DE (1) | DE2557945A1 (de) |
FR (1) | FR2324862A1 (de) |
GB (1) | GB1494284A (de) |
ZA (1) | ZA757015B (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1569822A (en) * | 1976-02-03 | 1980-06-18 | Bochumer Eisen Heintzmann | Roof-supporting frame of the caving shield type for underground workings in mines |
DE2841190A1 (de) * | 1978-09-22 | 1980-04-03 | Thyssen Industrie | Schildausbaugestell zur verwendung im untertaegigen grubenbetrieb, mit lemniskatenlenkern |
US4432673A (en) * | 1981-04-25 | 1984-02-21 | Dowty Mining Equipment Limited | Mine roof support |
GB2126639A (en) * | 1982-09-09 | 1984-03-28 | Dresser Europe Sa | Mine roof support forepoling beam |
AT399202B (de) * | 1988-08-23 | 1995-04-25 | Voest Alpine Bergtechnik | Einrichtung zum verspannen einer vortriebsmaschine in einer strecke |
AU2010271330B2 (en) | 2009-07-10 | 2014-09-11 | Joy Global Underground Mining Llc | Longwall mining roof supports |
CN103277107B (zh) * | 2013-06-24 | 2015-01-28 | 张井龙 | 护盾式巷道掘进机 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1036663A (en) * | 1964-04-03 | 1966-07-20 | Gullick Ltd | Improvements in or relating to mine roof and like supports |
NL6700923A (de) * | 1966-03-01 | 1967-09-04 | ||
DE2149380C3 (de) * | 1971-10-02 | 1980-04-17 | Gewerkschaft Eisenhuette Westfalia, 4670 Luenen | Strebausbaugestell |
GB1387311A (en) * | 1972-03-24 | 1975-03-12 | Gullick Dobson Ltd | Mine roof supports |
GB1429799A (en) * | 1973-01-26 | 1976-03-24 | Gullick Dobson Ltd | Mine roof supports |
US3848928A (en) * | 1973-02-12 | 1974-11-19 | Taiheiyo Coal Mining Co Ltd | Pantographic wall protector and automatic controlling device thereof |
DE2319909C2 (de) * | 1973-04-19 | 1982-07-01 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | Schildausbaugestell mit seitlich ausstellbarer Abstütz- und Verzugseinrichtung |
GB1477136A (en) * | 1973-10-18 | 1977-06-22 | Dowty Mining Equipment Ltd | Mine roof support |
DE2407227B1 (de) * | 1974-02-15 | 1975-06-05 | Bochumer Eisen Heintzmann | Hangendkappen-Anordnung fuer Schildausbaugestelle |
-
1975
- 1975-07-19 GB GB30347/75A patent/GB1494284A/en not_active Expired
- 1975-11-07 ZA ZA00757015A patent/ZA757015B/xx unknown
- 1975-11-10 JP JP50134206A patent/JPS5212602A/ja active Pending
- 1975-11-11 AU AU86502/75A patent/AU497824B2/en not_active Expired
- 1975-11-12 FR FR7534414A patent/FR2324862A1/fr not_active Withdrawn
- 1975-11-14 US US05/632,013 patent/US4102140A/en not_active Expired - Lifetime
- 1975-12-22 DE DE19752557945 patent/DE2557945A1/de active Pending
Also Published As
Publication number | Publication date |
---|---|
DE2557945A1 (de) | 1977-02-03 |
FR2324862A1 (fr) | 1977-04-15 |
GB1494284A (en) | 1977-12-07 |
US4102140A (en) | 1978-07-25 |
AU8650275A (en) | 1977-05-19 |
AU497824B2 (en) | 1979-01-11 |
JPS5212602A (en) | 1977-01-31 |
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