JPH0448157B2 - - Google Patents
Info
- Publication number
- JPH0448157B2 JPH0448157B2 JP1225587A JP1225587A JPH0448157B2 JP H0448157 B2 JPH0448157 B2 JP H0448157B2 JP 1225587 A JP1225587 A JP 1225587A JP 1225587 A JP1225587 A JP 1225587A JP H0448157 B2 JPH0448157 B2 JP H0448157B2
- Authority
- JP
- Japan
- Prior art keywords
- bit
- casing
- carrier
- striking
- hammer
- 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
- 230000007246 mechanism Effects 0.000 claims description 15
- 239000003638 chemical reducing agent Substances 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000009412 basement excavation Methods 0.000 description 10
- 238000005553 drilling Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000011435 rock Substances 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1225587A JPS63181884A (ja) | 1987-01-23 | 1987-01-23 | ハンマ−掘削機 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1225587A JPS63181884A (ja) | 1987-01-23 | 1987-01-23 | ハンマ−掘削機 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63181884A JPS63181884A (ja) | 1988-07-27 |
| JPH0448157B2 true JPH0448157B2 (enrdf_load_html_response) | 1992-08-05 |
Family
ID=11800257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1225587A Granted JPS63181884A (ja) | 1987-01-23 | 1987-01-23 | ハンマ−掘削機 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63181884A (enrdf_load_html_response) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5987487B2 (ja) * | 2011-06-17 | 2016-09-07 | 株式会社永井組 | 削孔装置および矢板の施工方法 |
-
1987
- 1987-01-23 JP JP1225587A patent/JPS63181884A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63181884A (ja) | 1988-07-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |