ZA79432B - Device for assembling two channel section members for supporting tunnels - Google Patents
Device for assembling two channel section members for supporting tunnelsInfo
- Publication number
- ZA79432B ZA79432B ZA79432A ZA79432A ZA79432B ZA 79432 B ZA79432 B ZA 79432B ZA 79432 A ZA79432 A ZA 79432A ZA 79432 A ZA79432 A ZA 79432A ZA 79432 B ZA79432 B ZA 79432B
- Authority
- ZA
- South Africa
- Prior art keywords
- assembling
- channel section
- section members
- tunnels
- supporting
- Prior art date
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/14—Lining predominantly with metal
- E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
- E21D11/22—Clamps or other yieldable means for interconnecting adjacent arch members either rigidly, or allowing arch member parts to slide when subjected to excessive pressure
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/14—Telescopic props
- E21D15/28—Telescopic props with parts held relatively to each other by friction or gripping
- E21D15/40—Collar or other support gripped to one or both parts by toggle-action, cam, or other member pivoted or similarly mounted
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Clamps And Clips (AREA)
- Connection Of Plates (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7804989A FR2381904A1 (en) | 1978-02-15 | 1978-02-15 | Underground mining support profile assembly - has M-sections which can slide in each other for adjustment with double locking partially by friction and fully by cams |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA79432B true ZA79432B (en) | 1980-01-30 |
Family
ID=9204870
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA79432A ZA79432B (en) | 1978-02-15 | 1979-02-01 | Device for assembling two channel section members for supporting tunnels |
Country Status (3)
Country | Link |
---|---|
BE (1) | BE874148A (en) |
FR (1) | FR2381904A1 (en) |
ZA (1) | ZA79432B (en) |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1054040B (en) * | 1943-02-03 | 1959-04-02 | Bochumer Eisen Heintzmann | Connection for the sliding bend extension |
FR978150A (en) * | 1948-02-04 | 1951-04-10 | Nouvelle Soc Des Ateliers Patt | Improvements to props and similar, in particular for mining work |
DE1004571B (en) * | 1956-01-17 | 1957-03-21 | Wilhelm Reppel | Flexible joint expansion for pit sections, cross cuts or the like. |
DE1006372B (en) * | 1956-02-29 | 1957-04-18 | Westfalenhuette Ag | Device for pressure-resilient bracing of the profile segments of pit support frames |
FR1228013A (en) * | 1956-07-11 | 1960-08-26 | Bochumer Ges Fuer Grubenausbau | Improvements to mine stanchions |
DE1018821B (en) * | 1956-12-07 | 1957-11-07 | Bergbaustahl G M B H | Flexible pit support arch |
DE1114761B (en) * | 1958-03-10 | 1961-10-12 | Bergbaustahl G M B H | Flexible pit support arch |
FR1359043A (en) * | 1963-06-18 | 1964-04-17 | Bochumer Eisen Heintzmann | Improvements made to support frames for galleries or mine corridors |
-
1978
- 1978-02-15 FR FR7804989A patent/FR2381904A1/en active Granted
-
1979
- 1979-02-01 ZA ZA79432A patent/ZA79432B/en unknown
- 1979-02-14 BE BE0/193443A patent/BE874148A/en unknown
Also Published As
Publication number | Publication date |
---|---|
BE874148A (en) | 1979-08-14 |
FR2381904B1 (en) | 1983-01-14 |
FR2381904A1 (en) | 1978-09-22 |
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