JPH01124836U - - Google Patents
Info
- Publication number
- JPH01124836U JPH01124836U JP719388U JP719388U JPH01124836U JP H01124836 U JPH01124836 U JP H01124836U JP 719388 U JP719388 U JP 719388U JP 719388 U JP719388 U JP 719388U JP H01124836 U JPH01124836 U JP H01124836U
- Authority
- JP
- Japan
- Prior art keywords
- underdrain
- pipe according
- filter material
- tubular core
- drain pipe
- 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
- 239000000463 material Substances 0.000 claims description 8
- 239000011162 core material Substances 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims 3
- 230000002093 peripheral effect Effects 0.000 claims 2
- 239000004744 fabric Substances 0.000 claims 1
- 230000003014 reinforcing effect Effects 0.000 claims 1
- 229920003002 synthetic resin Polymers 0.000 claims 1
- 239000000057 synthetic resin Substances 0.000 claims 1
- 238000004804 winding Methods 0.000 claims 1
- 230000002787 reinforcement Effects 0.000 description 1
Landscapes
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP719388U JPH01124836U (enExample) | 1988-01-22 | 1988-01-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP719388U JPH01124836U (enExample) | 1988-01-22 | 1988-01-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01124836U true JPH01124836U (enExample) | 1989-08-25 |
Family
ID=31212002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP719388U Pending JPH01124836U (enExample) | 1988-01-22 | 1988-01-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01124836U (enExample) |
-
1988
- 1988-01-22 JP JP719388U patent/JPH01124836U/ja active Pending