BE518850A - - Google Patents
Info
- Publication number
- BE518850A BE518850A BE518850DA BE518850A BE 518850 A BE518850 A BE 518850A BE 518850D A BE518850D A BE 518850DA BE 518850 A BE518850 A BE 518850A
- Authority
- BE
- Belgium
- Prior art keywords
- support according
- mine support
- shear
- shearing
- profiles
- Prior art date
Links
- 238000010008 shearing Methods 0.000 claims description 22
- 230000007423 decrease Effects 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 claims description 2
- 238000009412 basement excavation Methods 0.000 claims description 2
- 230000000881 depressing effect Effects 0.000 claims 1
- 230000000284 resting effect Effects 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method 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
- E21D15/16—Telescopic props with parts held together by positive means, with or without relative sliding movement when the prop is subject to excessive pressure
- E21D15/22—Telescopic props with parts held together by positive means, with or without relative sliding movement when the prop is subject to excessive pressure with member, pin, cross- piece, or the like, ruptured, sheared through, or permanently deformed upon excessive pressure
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)
- Shearing Machines (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE518850A true BE518850A (enrdf_load_stackoverflow) |
Family
ID=155270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE518850D BE518850A (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE518850A (enrdf_load_stackoverflow) |
-
0
- BE BE518850D patent/BE518850A/fr unknown
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