BE501874A - - Google Patents
Info
- Publication number
- BE501874A BE501874A BE501874DA BE501874A BE 501874 A BE501874 A BE 501874A BE 501874D A BE501874D A BE 501874DA BE 501874 A BE501874 A BE 501874A
- Authority
- BE
- Belgium
- Prior art keywords
- shaped
- support
- support frame
- arched
- sections
- Prior art date
Links
- 235000000396 iron Nutrition 0.000 claims description 4
- 125000006850 spacer group Chemical group 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000002023 wood Substances 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
- E21D11/20—Special cross- sections, e.g. corrugated
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)
- Roof Covering Using Slabs Or Stiff Sheets (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE501874A true BE501874A (https=) |
Family
ID=143557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE501874D BE501874A (https=) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE501874A (https=) |
-
0
- BE BE501874D patent/BE501874A/fr unknown
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