PL83542B2 - - Google Patents
Download PDFInfo
- Publication number
- PL83542B2 PL83542B2 PL16097673A PL16097673A PL83542B2 PL 83542 B2 PL83542 B2 PL 83542B2 PL 16097673 A PL16097673 A PL 16097673A PL 16097673 A PL16097673 A PL 16097673A PL 83542 B2 PL83542 B2 PL 83542B2
- Authority
- PL
- Poland
- Prior art keywords
- dam
- segment
- boom
- mechanized mining
- canopy
- Prior art date
Links
- 238000005065 mining Methods 0.000 claims description 8
- 239000004744 fabric Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 3
- 238000009412 basement excavation Methods 0.000 description 2
- 238000007665 sagging Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000446313 Lamella Species 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Landscapes
- Lining And Supports For Tunnels (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL16097673A PL83542B2 (cs) | 1973-02-28 | 1973-02-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL16097673A PL83542B2 (cs) | 1973-02-28 | 1973-02-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PL83542B2 true PL83542B2 (cs) | 1975-12-31 |
Family
ID=19961750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL16097673A PL83542B2 (cs) | 1973-02-28 | 1973-02-28 |
Country Status (1)
| Country | Link |
|---|---|
| PL (1) | PL83542B2 (cs) |
-
1973
- 1973-02-28 PL PL16097673A patent/PL83542B2/pl unknown
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