JPH0444583U - - Google Patents
Info
- Publication number
- JPH0444583U JPH0444583U JP8726190U JP8726190U JPH0444583U JP H0444583 U JPH0444583 U JP H0444583U JP 8726190 U JP8726190 U JP 8726190U JP 8726190 U JP8726190 U JP 8726190U JP H0444583 U JPH0444583 U JP H0444583U
- Authority
- JP
- Japan
- Prior art keywords
- steel pipe
- sheathed
- propulsion tube
- iron
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 239000000945 filler Substances 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims 1
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
- Joints With Sleeves (AREA)
Description
第１図は本考案の一実施例に係る推進管の断面
図、第２図は他の実施例に係る推進管の断面図、
第３図は従来の推進管の断面図である。 １１，１９……推進管、１２，３１……鉄管、
１３，３２……外装鋼管、１４……外装充填材、
１６，３４……フラツトバー。
図、第２図は他の実施例に係る推進管の断面図、
第３図は従来の推進管の断面図である。 １１，１９……推進管、１２，３１……鉄管、
１３，３２……外装鋼管、１４……外装充填材、
１６，３４……フラツトバー。
Claims (1)
- 鉄管の外周に筒状の外装鋼管が外装され、これ
らの鉄管と外装鋼管との間に外装充填材が充填さ
れた推進管において、外装鋼管の内周面にリング
状のフラツトバーを固着したことを特徴とする推
進管。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8726190U JPH0444583U (ja) | 1990-08-20 | 1990-08-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8726190U JPH0444583U (ja) | 1990-08-20 | 1990-08-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0444583U true JPH0444583U (ja) | 1992-04-15 |
Family
ID=31819462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8726190U Pending JPH0444583U (ja) | 1990-08-20 | 1990-08-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0444583U (ja) |
-
1990
- 1990-08-20 JP JP8726190U patent/JPH0444583U/ja active Pending