BE465210A - - Google Patents
Info
- Publication number
- BE465210A BE465210A BE465210DA BE465210A BE 465210 A BE465210 A BE 465210A BE 465210D A BE465210D A BE 465210DA BE 465210 A BE465210 A BE 465210A
- Authority
- BE
- Belgium
- Prior art keywords
- base
- prop
- sleeve
- movable wall
- box
- Prior art date
Links
- 239000000126 substance Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 description 4
- 238000005065 mining Methods 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 230000006978 adaptation Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 101100521345 Mus musculus Prop1 gene Proteins 0.000 description 1
- 108700017836 Prophet of Pit-1 Proteins 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 239000011121 hardwood Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000717 retained effect Effects 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
-
- 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
- E21D15/02—Non-telescopic props
- E21D15/06—Non-telescopic props with parts joined by a lock, with or without slight axial adjustability
- E21D15/12—Non-telescopic props with parts joined by a lock, with or without slight axial adjustability with locking devices located near head or foot
-
- 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
- E21D15/50—Component parts or details of props
- E21D15/52—Extensible units located above or below standard props
- E21D15/526—Extensible units located above or below standard props for step-by-step extension of the prop
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)
- Mutual Connection Of Rods And Tubes (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE465210A true BE465210A (enrdf_load_html_response) |
Family
ID=116844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE465210D BE465210A (enrdf_load_html_response) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE465210A (enrdf_load_html_response) |
-
0
- BE BE465210D patent/BE465210A/fr unknown
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