CA2254302A1 - Rondelle de frottement amelioree - Google Patents
Rondelle de frottement amelioree Download PDFInfo
- Publication number
- CA2254302A1 CA2254302A1 CA 2254302 CA2254302A CA2254302A1 CA 2254302 A1 CA2254302 A1 CA 2254302A1 CA 2254302 CA2254302 CA 2254302 CA 2254302 A CA2254302 A CA 2254302A CA 2254302 A1 CA2254302 A1 CA 2254302A1
- Authority
- CA
- Canada
- Prior art keywords
- friction washer
- improved friction
- improved
- rock
- wire mesh
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 239000011435 rock Substances 0.000 claims abstract description 42
- 238000009434 installation Methods 0.000 claims abstract description 16
- 238000012216 screening Methods 0.000 claims abstract description 14
- 230000007797 corrosion Effects 0.000 claims abstract description 7
- 238000005260 corrosion Methods 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims description 10
- 229910001209 Low-carbon steel Inorganic materials 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 2
- 229920006334 epoxy coating Polymers 0.000 claims description 2
- 239000011701 zinc Substances 0.000 claims description 2
- 229910052725 zinc Inorganic materials 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000013461 design Methods 0.000 description 9
- 238000005065 mining Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 208000014674 injury Diseases 0.000 description 3
- 238000011900 installation process Methods 0.000 description 3
- 238000005496 tempering Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 2
- 229910000639 Spring steel Inorganic materials 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000005246 galvanizing Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000717 retained effect Effects 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
- E21D11/15—Plate linings; Laggings, i.e. linings designed for holding back formation material or for transmitting the load to main supporting members
- E21D11/152—Laggings made of grids or nettings
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
- E21D21/0086—Bearing plates
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)
- Architecture (AREA)
- Civil Engineering (AREA)
- Piles And Underground Anchors (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2254302 CA2254302A1 (fr) | 1998-11-23 | 1998-11-23 | Rondelle de frottement amelioree |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2254302 CA2254302A1 (fr) | 1998-11-23 | 1998-11-23 | Rondelle de frottement amelioree |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2254302A1 true CA2254302A1 (fr) | 2000-05-23 |
Family
ID=29425681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2254302 Abandoned CA2254302A1 (fr) | 1998-11-23 | 1998-11-23 | Rondelle de frottement amelioree |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2254302A1 (fr) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2052130A4 (fr) * | 2006-08-14 | 2015-03-18 | Hilti Corp | Dispositif tensionneur |
| RU174997U1 (ru) * | 2017-05-26 | 2017-11-15 | ООО "ОКС-Трейд" | Шайба опорная анкерной крепи с фиксатором |
-
1998
- 1998-11-23 CA CA 2254302 patent/CA2254302A1/fr not_active Abandoned
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2052130A4 (fr) * | 2006-08-14 | 2015-03-18 | Hilti Corp | Dispositif tensionneur |
| RU174997U1 (ru) * | 2017-05-26 | 2017-11-15 | ООО "ОКС-Трейд" | Шайба опорная анкерной крепи с фиксатором |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |