JPS6241117Y2 - - Google Patents
Info
- Publication number
- JPS6241117Y2 JPS6241117Y2 JP2273883U JP2273883U JPS6241117Y2 JP S6241117 Y2 JPS6241117 Y2 JP S6241117Y2 JP 2273883 U JP2273883 U JP 2273883U JP 2273883 U JP2273883 U JP 2273883U JP S6241117 Y2 JPS6241117 Y2 JP S6241117Y2
- Authority
- JP
- Japan
- Prior art keywords
- rod
- rods
- drilling machine
- hole
- hole drilling
- 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.)
- Expired
Links
- 238000005553 drilling Methods 0.000 claims description 26
- 239000011435 rock Substances 0.000 description 10
- 238000005422 blasting Methods 0.000 description 6
- 239000012530 fluid Substances 0.000 description 6
- 238000011010 flushing procedure Methods 0.000 description 6
- 239000000843 powder Substances 0.000 description 4
- 238000009412 basement excavation Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000003721 gunpowder Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Landscapes
- Earth Drilling (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2273883U JPS59129994U (ja) | 1983-02-18 | 1983-02-18 | 続孔穿孔機 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2273883U JPS59129994U (ja) | 1983-02-18 | 1983-02-18 | 続孔穿孔機 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59129994U JPS59129994U (ja) | 1984-08-31 |
| JPS6241117Y2 true JPS6241117Y2 (enrdf_load_stackoverflow) | 1987-10-21 |
Family
ID=30153831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2273883U Granted JPS59129994U (ja) | 1983-02-18 | 1983-02-18 | 続孔穿孔機 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59129994U (enrdf_load_stackoverflow) |
-
1983
- 1983-02-18 JP JP2273883U patent/JPS59129994U/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59129994U (ja) | 1984-08-31 |
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