JPS623898U - - Google Patents
Info
- Publication number
- JPS623898U JPS623898U JP9481785U JP9481785U JPS623898U JP S623898 U JPS623898 U JP S623898U JP 9481785 U JP9481785 U JP 9481785U JP 9481785 U JP9481785 U JP 9481785U JP S623898 U JPS623898 U JP S623898U
- Authority
- JP
- Japan
- Prior art keywords
- pressure chamber
- earth
- cylindrical support
- sand
- connecting member
- 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.)
- Granted
Links
- 238000005192 partition Methods 0.000 claims description 2
- 239000004576 sand Substances 0.000 claims 4
- 239000013049 sediment Substances 0.000 description 1
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9481785U JPH0330471Y2 (fr) | 1985-06-21 | 1985-06-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9481785U JPH0330471Y2 (fr) | 1985-06-21 | 1985-06-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS623898U true JPS623898U (fr) | 1987-01-10 |
| JPH0330471Y2 JPH0330471Y2 (fr) | 1991-06-27 |
Family
ID=30653609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9481785U Expired JPH0330471Y2 (fr) | 1985-06-21 | 1985-06-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0330471Y2 (fr) |
-
1985
- 1985-06-21 JP JP9481785U patent/JPH0330471Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0330471Y2 (fr) | 1991-06-27 |