BE498052A - - Google Patents
Info
- Publication number
- BE498052A BE498052A BE498052DA BE498052A BE 498052 A BE498052 A BE 498052A BE 498052D A BE498052D A BE 498052DA BE 498052 A BE498052 A BE 498052A
- Authority
- BE
- Belgium
- Prior art keywords
- prop
- strut
- mine
- shearing
- prop according
- Prior art date
Links
- 235000000396 iron Nutrition 0.000 claims description 22
- 238000010008 shearing Methods 0.000 claims description 19
- 239000002184 metal Substances 0.000 claims description 15
- 229910052751 metal Inorganic materials 0.000 claims description 15
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 25
- 229910052742 iron Inorganic materials 0.000 description 13
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000005065 mining Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 210000003462 vein Anatomy 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
- 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)
- Working Measures On Existing Buildindgs (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE498052A true BE498052A (en:Method) |
Family
ID=140845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE498052D BE498052A (en:Method) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE498052A (en:Method) |
-
0
- BE BE498052D patent/BE498052A/fr unknown
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