BE526699A - - Google Patents
Info
- Publication number
- BE526699A BE526699A BE526699DA BE526699A BE 526699 A BE526699 A BE 526699A BE 526699D A BE526699D A BE 526699DA BE 526699 A BE526699 A BE 526699A
- Authority
- BE
- Belgium
- Prior art keywords
- corners
- profiles
- clamped
- notches
- flat
- Prior art date
Links
- 238000005065 mining Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 3
- 241000251468 Actinopterygii Species 0.000 description 1
- 235000000396 iron Nutrition 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
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
- E21D11/183—Supporting means for arch members, not provided for in E21D11/22
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)
- Mutual Connection Of Rods And Tubes (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE526699A true BE526699A (https=) |
Family
ID=160579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE526699D BE526699A (https=) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE526699A (https=) |
-
0
- BE BE526699D patent/BE526699A/fr unknown
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