PL54273B1 - - Google Patents
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- Publication number
- PL54273B1 PL54273B1 PL110612A PL11061265A PL54273B1 PL 54273 B1 PL54273 B1 PL 54273B1 PL 110612 A PL110612 A PL 110612A PL 11061265 A PL11061265 A PL 11061265A PL 54273 B1 PL54273 B1 PL 54273B1
- Authority
- PL
- Poland
- Prior art keywords
- stands
- canopy
- casing
- rock mass
- flexible
- Prior art date
Links
- 239000011435 rock Substances 0.000 claims description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 238000009412 basement excavation Methods 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 description 2
- 230000003245 working effect Effects 0.000 description 2
- 238000005253 cladding Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19661483887 DE1483887A1 (de) | 1965-08-23 | 1966-08-16 | Spitzbogenfoermiger,nachgiebig-steifer Ausbau in Tiefbau-Streckenverhieben von Bergwerken |
| BE685825D BE685825A (forum.php) | 1965-08-23 | 1966-08-22 | |
| GB3785466A GB1142366A (en) | 1965-08-23 | 1966-08-23 | Ogival arch support for a mine roadway |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PL54273B1 true PL54273B1 (forum.php) | 1967-10-25 |
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