JPS621342Y2 - - Google Patents
Info
- Publication number
- JPS621342Y2 JPS621342Y2 JP10588681U JP10588681U JPS621342Y2 JP S621342 Y2 JPS621342 Y2 JP S621342Y2 JP 10588681 U JP10588681 U JP 10588681U JP 10588681 U JP10588681 U JP 10588681U JP S621342 Y2 JPS621342 Y2 JP S621342Y2
- Authority
- JP
- Japan
- Prior art keywords
- cam
- expanded
- outer tube
- bit
- cam plate
- 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 11
- 238000009412 basement excavation Methods 0.000 description 16
- 238000010276 construction Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 230000000087 stabilizing effect Effects 0.000 description 3
- 239000012528 membrane Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10588681U JPS5816290U (ja) | 1981-07-16 | 1981-07-16 | 拡底杭孔掘削装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10588681U JPS5816290U (ja) | 1981-07-16 | 1981-07-16 | 拡底杭孔掘削装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5816290U JPS5816290U (ja) | 1983-02-01 |
| JPS621342Y2 true JPS621342Y2 (enrdf_load_html_response) | 1987-01-13 |
Family
ID=29900402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10588681U Granted JPS5816290U (ja) | 1981-07-16 | 1981-07-16 | 拡底杭孔掘削装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5816290U (enrdf_load_html_response) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019078157A (ja) * | 2018-09-20 | 2019-05-23 | 株式会社アクティブ | 孔拡径装置 |
-
1981
- 1981-07-16 JP JP10588681U patent/JPS5816290U/ja active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019078157A (ja) * | 2018-09-20 | 2019-05-23 | 株式会社アクティブ | 孔拡径装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5816290U (ja) | 1983-02-01 |
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