JPS6439496A - Double pipe type excavator - Google Patents
Double pipe type excavatorInfo
- Publication number
- JPS6439496A JPS6439496A JP19370287A JP19370287A JPS6439496A JP S6439496 A JPS6439496 A JP S6439496A JP 19370287 A JP19370287 A JP 19370287A JP 19370287 A JP19370287 A JP 19370287A JP S6439496 A JPS6439496 A JP S6439496A
- Authority
- JP
- Japan
- Prior art keywords
- outer pipe
- projectably
- thickness
- cylindrical body
- double 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.)
- Granted
Links
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62193702A JPH0791943B2 (ja) | 1987-08-04 | 1987-08-04 | 二重管式掘進装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62193702A JPH0791943B2 (ja) | 1987-08-04 | 1987-08-04 | 二重管式掘進装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6439496A true JPS6439496A (en) | 1989-02-09 |
JPH0791943B2 JPH0791943B2 (ja) | 1995-10-09 |
Family
ID=16312361
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62193702A Expired - Fee Related JPH0791943B2 (ja) | 1987-08-04 | 1987-08-04 | 二重管式掘進装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0791943B2 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04155099A (ja) * | 1990-10-18 | 1992-05-28 | Ishifuku Kensetsu Kk | 管の地中埋設方法 |
JP2006336263A (ja) * | 2005-06-01 | 2006-12-14 | East Japan Railway Co | 先導管及びこの先導管の配管工法 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6059297A (ja) * | 1983-08-18 | 1985-04-05 | 鉱研試錐工業株式会社 | 埋設管直進推進工法及びその装置 |
-
1987
- 1987-08-04 JP JP62193702A patent/JPH0791943B2/ja not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6059297A (ja) * | 1983-08-18 | 1985-04-05 | 鉱研試錐工業株式会社 | 埋設管直進推進工法及びその装置 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04155099A (ja) * | 1990-10-18 | 1992-05-28 | Ishifuku Kensetsu Kk | 管の地中埋設方法 |
JP2006336263A (ja) * | 2005-06-01 | 2006-12-14 | East Japan Railway Co | 先導管及びこの先導管の配管工法 |
Also Published As
Publication number | Publication date |
---|---|
JPH0791943B2 (ja) | 1995-10-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
LAPS | Cancellation because of no payment of annual fees |