JPS5729638B2 - - Google Patents
Info
- Publication number
- JPS5729638B2 JPS5729638B2 JP10408979A JP10408979A JPS5729638B2 JP S5729638 B2 JPS5729638 B2 JP S5729638B2 JP 10408979 A JP10408979 A JP 10408979A JP 10408979 A JP10408979 A JP 10408979A JP S5729638 B2 JPS5729638 B2 JP S5729638B2
- Authority
- JP
- Japan
- 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
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10408979A JPS5628993A (en) | 1979-08-17 | 1979-08-17 | Pit excavation method and drilling guide pipe for hard rock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10408979A JPS5628993A (en) | 1979-08-17 | 1979-08-17 | Pit excavation method and drilling guide pipe for hard rock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5628993A JPS5628993A (en) | 1981-03-23 |
| JPS5729638B2 true JPS5729638B2 (enExample) | 1982-06-23 |
Family
ID=14371392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10408979A Granted JPS5628993A (en) | 1979-08-17 | 1979-08-17 | Pit excavation method and drilling guide pipe for hard rock |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5628993A (enExample) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5894586A (ja) * | 1981-11-28 | 1983-06-04 | 株式会社山本鉄工所 | 大口径孔の穿孔方法およびその装置 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5268704A (en) * | 1975-12-03 | 1977-06-07 | Ikunari Onooka | Method of timbering continuously in hole excavated by earth auger |
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1979
- 1979-08-17 JP JP10408979A patent/JPS5628993A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5628993A (en) | 1981-03-23 |