JPS6120147Y2 - - Google Patents
Info
- Publication number
- JPS6120147Y2 JPS6120147Y2 JP1977122506U JP12250677U JPS6120147Y2 JP S6120147 Y2 JPS6120147 Y2 JP S6120147Y2 JP 1977122506 U JP1977122506 U JP 1977122506U JP 12250677 U JP12250677 U JP 12250677U JP S6120147 Y2 JPS6120147 Y2 JP S6120147Y2
- Authority
- JP
- Japan
- Prior art keywords
- drill pipe
- slip beam
- lifting
- hydraulic jack
- lifting frame
- 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 15
- 238000009412 basement excavation Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1977122506U JPS6120147Y2 (es) | 1977-09-12 | 1977-09-12 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1977122506U JPS6120147Y2 (es) | 1977-09-12 | 1977-09-12 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5448001U JPS5448001U (es) | 1979-04-03 |
JPS6120147Y2 true JPS6120147Y2 (es) | 1986-06-17 |
Family
ID=29080693
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1977122506U Expired JPS6120147Y2 (es) | 1977-09-12 | 1977-09-12 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6120147Y2 (es) |
-
1977
- 1977-09-12 JP JP1977122506U patent/JPS6120147Y2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5448001U (es) | 1979-04-03 |
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