FR990397A - Keyed joint for th profiles, in particular for mine arch support - Google Patents
Keyed joint for th profiles, in particular for mine arch supportInfo
- Publication number
- FR990397A FR990397A FR990397DA FR990397A FR 990397 A FR990397 A FR 990397A FR 990397D A FR990397D A FR 990397DA FR 990397 A FR990397 A FR 990397A
- Authority
- FR
- France
- Prior art keywords
- profiles
- arch support
- keyed joint
- mine arch
- mine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR990397T | 1949-07-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR990397A true FR990397A (en) | 1951-09-20 |
Family
ID=9543813
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR990397D Expired FR990397A (en) | 1949-07-07 | 1949-07-07 | Keyed joint for th profiles, in particular for mine arch support |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR990397A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2325799A1 (en) * | 1975-09-24 | 1977-04-22 | Bergbaustahl Gmbh & Co | TENSIONER CONNECTION DEVICE FOR ELEMENTS USED AS SUPPORT PANELS IN MINING GALLERIES |
-
1949
- 1949-07-07 FR FR990397D patent/FR990397A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2325799A1 (en) * | 1975-09-24 | 1977-04-22 | Bergbaustahl Gmbh & Co | TENSIONER CONNECTION DEVICE FOR ELEMENTS USED AS SUPPORT PANELS IN MINING GALLERIES |
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