JPH0465889U - - Google Patents
Info
- Publication number
- JPH0465889U JPH0465889U JP11031290U JP11031290U JPH0465889U JP H0465889 U JPH0465889 U JP H0465889U JP 11031290 U JP11031290 U JP 11031290U JP 11031290 U JP11031290 U JP 11031290U JP H0465889 U JPH0465889 U JP H0465889U
- Authority
- JP
- Japan
- Prior art keywords
- tube
- center
- concrete
- pipe
- centrifugal force
- 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.)
- Pending
Links
- 239000002131 composite material Substances 0.000 claims description 5
- 239000004568 cement Substances 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 claims 2
- 239000010959 steel Substances 0.000 claims 2
- 230000004323 axial length Effects 0.000 claims 1
- 238000005192 partition Methods 0.000 description 3
- 238000009415 formwork Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 1
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11031290U JPH0465889U (en, 2012) | 1990-10-22 | 1990-10-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11031290U JPH0465889U (en, 2012) | 1990-10-22 | 1990-10-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0465889U true JPH0465889U (en, 2012) | 1992-06-09 |
Family
ID=31857631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11031290U Pending JPH0465889U (en, 2012) | 1990-10-22 | 1990-10-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0465889U (en, 2012) |
-
1990
- 1990-10-22 JP JP11031290U patent/JPH0465889U/ja active Pending
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