BE516049A - - Google Patents
Info
- Publication number
- BE516049A BE516049A BE516049DA BE516049A BE 516049 A BE516049 A BE 516049A BE 516049D A BE516049D A BE 516049DA BE 516049 A BE516049 A BE 516049A
- Authority
- BE
- Belgium
- Prior art keywords
- lever
- lock
- wedge
- clamping
- excavations
- Prior art date
Links
- 238000009412 basement excavation Methods 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 2
- 238000006073 displacement reaction Methods 0.000 claims 1
- 230000002441 reversible effect Effects 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 230000009349 indirect transmission Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003387 muscular Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
- E21D15/14—Telescopic props
- E21D15/28—Telescopic props with parts held relatively to each other by friction or gripping
- E21D15/285—Telescopic props with parts held relatively to each other by friction or gripping by means of wedges or wedge combinations
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Clamps And Clips (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE516049A true BE516049A (forum.php) |
Family
ID=153365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE516049D BE516049A (forum.php) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE516049A (forum.php) |
-
0
- BE BE516049D patent/BE516049A/fr unknown
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