发明名称 |
PROPULSION PIPE FOR BACKING PREVENTION |
摘要 |
PROBLEM TO BE SOLVED: To provide a propulsion pipe for preventing strong backing force of pushing back a propulsion pipe column to a start shaft side when connecting the propulsion pipe during propulsion construction.SOLUTION: The propulsion pipe for backing prevention is a propulsion pipe 1 used for preventing backing that the propulsion pipe column is pushed back to the start shaft side by a water pressure or a soil pressure acting on a boring machine face plate at a distal end when connecting the propulsion pipe made of reinforced concrete during propulsion, and is configured by fixing an annular reinforcing plate 4 having a prescribed length in a propulsion direction to a concrete outer peripheral surface at the back of the propulsion pipe 1 so as to have the almost same diameter as an outer diameter of the propulsion pipe 1. |
申请公布号 |
JP2013147812(A) |
申请公布日期 |
2013.08.01 |
申请号 |
JP20120007636 |
申请日期 |
2012.01.18 |
申请人 |
KIDOH CONSTRUCTION CO LTD |
发明人 |
YOSHIOKA SATORU;WADA KOJI |
分类号 |
E21D9/06;F16L1/024 |
主分类号 |
E21D9/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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