JPS646591A - Method of replacing existing main pipe with novel main pipe - Google Patents
Method of replacing existing main pipe with novel main pipeInfo
- Publication number
- JPS646591A JPS646591A JP62160480A JP16048087A JPS646591A JP S646591 A JPS646591 A JP S646591A JP 62160480 A JP62160480 A JP 62160480A JP 16048087 A JP16048087 A JP 16048087A JP S646591 A JPS646591 A JP S646591A
- Authority
- JP
- Japan
- Prior art keywords
- excavator
- tube
- new
- old
- hollow
- 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 attempt an exchange of the old tube for a new one without digging the surface of the earth by making positive pressure within the hollow tunnel forward by breaking the old tube by an excavator, holding the hollow state inside with the application of pressure and subsequently inserting the new one into the hollow tunnel. CONSTITUTION: An excavator 2 having a drum larger in external diameter than that of an old tube 1, is advanced forward with the application of impactive force by means of an air hammer and the like to break the old one 1. When the excavator 2 enters in the ground, a blocking board 7 is attached and controls the discharge of air exhaust of the excavator 2. By utilizing this force of the air exhaust, the old tube 1 is removed by advancing the excavator, taking caution not to damage the hollow part. When the excavator 2 arrives at the destination pit K2 , the excavator 2, etc., is withdrawn. As for a new tube, the new tube is installed with the leading end forward, being pushed into the hollow by means of a jack. As a result, it makes a long-distance operation possible. Furthermore, as there is no need for integrating an excavator and a new tube, etc., it facilitates an easy operation.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62160480A JPS646591A (en) | 1987-06-26 | 1987-06-26 | Method of replacing existing main pipe with novel main pipe |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62160480A JPS646591A (en) | 1987-06-26 | 1987-06-26 | Method of replacing existing main pipe with novel main pipe |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS646591A true JPS646591A (en) | 1989-01-11 |
Family
ID=15715862
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62160480A Pending JPS646591A (en) | 1987-06-26 | 1987-06-26 | Method of replacing existing main pipe with novel main pipe |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS646591A (en) |
-
1987
- 1987-06-26 JP JP62160480A patent/JPS646591A/en active Pending
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