JPS6490396A - Long-distance propulsive steel pipe with lubricant supply pipe - Google Patents
Long-distance propulsive steel pipe with lubricant supply pipeInfo
- Publication number
- JPS6490396A JPS6490396A JP24251287A JP24251287A JPS6490396A JP S6490396 A JPS6490396 A JP S6490396A JP 24251287 A JP24251287 A JP 24251287A JP 24251287 A JP24251287 A JP 24251287A JP S6490396 A JPS6490396 A JP S6490396A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- lubricant
- long
- distance
- propulsive
- 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
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
PURPOSE: To feed a lubricant without trouble by arranging a lubricant feed pipe on the inner face of the outer pipe of a long-distance advance steel pipe constituted of both inner and outer pipes, and providing lubricant exhaust nozzles reaching the lubricant feed pipe from the outer periphery of the outer pipe. CONSTITUTION: An inner pipe 2 is arranged in an outer pipe 3, a lubricant feed pipe 4 is welded to the inner apex of the outer pipe 3, and a plurality of lubricant exhaust nozzles 5 reaching the lubricant feed pipe 4 from the outer periphery of the outer pipe 3 are provided at proper intervals. Mortar or concrete 6 is filled in the gap between the inner pipe 2 and the outer pipe 3 to form an advance steel pipe 1. At the time of execution, an lubricant is force-fed in the lubricant feed pipe 4 and is spouted from the exhaust nozzles 5, and execution is made while the frictional resistance between the outer pipe 3 and peripheral sediment is reduced.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24251287A JPS6490396A (en) | 1987-09-29 | 1987-09-29 | Long-distance propulsive steel pipe with lubricant supply pipe |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24251287A JPS6490396A (en) | 1987-09-29 | 1987-09-29 | Long-distance propulsive steel pipe with lubricant supply pipe |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6490396A true JPS6490396A (en) | 1989-04-06 |
Family
ID=17090206
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP24251287A Pending JPS6490396A (en) | 1987-09-29 | 1987-09-29 | Long-distance propulsive steel pipe with lubricant supply pipe |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6490396A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5190274A (en) * | 1990-11-28 | 1993-03-02 | Sharp Kabushiki Kaisha | Sheet treatment device with a variable time period for jamming indication |
KR100912227B1 (en) * | 2009-03-26 | 2009-08-14 | 주식회사 도화종합기술공사 | Propulsion pipe with soil prevention type lubricant nozzle |
-
1987
- 1987-09-29 JP JP24251287A patent/JPS6490396A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5190274A (en) * | 1990-11-28 | 1993-03-02 | Sharp Kabushiki Kaisha | Sheet treatment device with a variable time period for jamming indication |
KR100912227B1 (en) * | 2009-03-26 | 2009-08-14 | 주식회사 도화종합기술공사 | Propulsion pipe with soil prevention type lubricant nozzle |
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