JPS6458798A - Propulsion device of small bore pipe - Google Patents
Propulsion device of small bore pipeInfo
- Publication number
- JPS6458798A JPS6458798A JP21456787A JP21456787A JPS6458798A JP S6458798 A JPS6458798 A JP S6458798A JP 21456787 A JP21456787 A JP 21456787A JP 21456787 A JP21456787 A JP 21456787A JP S6458798 A JPS6458798 A JP S6458798A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- propulsion device
- pressure liquid
- nozzle
- end section
- 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
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
PURPOSE: To improve the straight advancing property of a propulsion device by providing an outer pipe which propels in the axial direction with its sharpened front end section, a high-pressure liquid injection nozzle and a bit at the eccentric position of the outer pipe, an inner pipe having a closed front end, a high-pressure liquid flow passage, and targets at the front end of the inner pipe. CONSTITUTION: A propulsion device is provided with an outer pipe 22 which has a sharpened front end section and can propel in the axial direction by rotating around its axial line, a nozzle 26 which is provided at the eccentric position of the front end section and jets a high-pressure liquid, and a bit 28 which is attached to the front end section of the outer pipe 22. The device is also provided with an inner pipe 30 which is coaxially provided in the outer pipe 22, has a closed front end, and is fixed to the pipe 22; a flow passage 40 which is formed between the inner and outer pipes 30 and 22 for leading the high-pressure liquid to the nozzle 26, and targets 32 and 34 which detect the bias of a small-diameter pipe and the position of the nozzle 26 at the front end of the inner pipe 30. Therefore, the diameter of the propulsion pipe of the propulsion device can be reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21456787A JPS6458798A (en) | 1987-08-27 | 1987-08-27 | Propulsion device of small bore pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21456787A JPS6458798A (en) | 1987-08-27 | 1987-08-27 | Propulsion device of small bore pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6458798A true JPS6458798A (en) | 1989-03-06 |
| JPH0411719B2 JPH0411719B2 (en) | 1992-03-02 |
Family
ID=16657857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21456787A Granted JPS6458798A (en) | 1987-08-27 | 1987-08-27 | Propulsion device of small bore pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6458798A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06257391A (en) * | 1993-03-08 | 1994-09-13 | Hanix Ind Co Ltd | Direction control device in propulsive burying device for small bore pipe to be buried |
| KR100447871B1 (en) * | 2002-02-04 | 2004-09-16 | 주식회사 구룡건설 | Push horizontal pipe jacking apparatus |
| KR100447872B1 (en) * | 2002-02-09 | 2004-09-16 | 주식회사 구룡건설 | Push horizontal pipe jacking apparatus |
| JP2007023704A (en) * | 2005-07-21 | 2007-02-01 | Chem Grouting Co Ltd | Boring method |
-
1987
- 1987-08-27 JP JP21456787A patent/JPS6458798A/en active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06257391A (en) * | 1993-03-08 | 1994-09-13 | Hanix Ind Co Ltd | Direction control device in propulsive burying device for small bore pipe to be buried |
| KR100447871B1 (en) * | 2002-02-04 | 2004-09-16 | 주식회사 구룡건설 | Push horizontal pipe jacking apparatus |
| KR100447872B1 (en) * | 2002-02-09 | 2004-09-16 | 주식회사 구룡건설 | Push horizontal pipe jacking apparatus |
| JP2007023704A (en) * | 2005-07-21 | 2007-02-01 | Chem Grouting Co Ltd | Boring method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0411719B2 (en) | 1992-03-02 |
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