BE547262A - - Google Patents
Info
- Publication number
- BE547262A BE547262A BE547262DA BE547262A BE 547262 A BE547262 A BE 547262A BE 547262D A BE547262D A BE 547262DA BE 547262 A BE547262 A BE 547262A
- Authority
- BE
- Belgium
- Prior art keywords
- parts
- frame
- compressed
- knife
- wedge
- Prior art date
Links
- 239000002023 wood Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 238000005065 mining Methods 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000008719 thickening Effects 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)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE547262A true BE547262A (cs) |
Family
ID=174294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE547262D BE547262A (cs) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE547262A (cs) |
-
0
- BE BE547262D patent/BE547262A/fr unknown
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