Title:
埋設管の施工工法、および当該施工工法に用いる埋設管の埋設補助具
Document Type and Number:
Japanese Patent JP6820694
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a construction method of an underground pipe capable of installing an underground pipe at a low cost without widely cutting the ground while avoiding collapse of the ground and preventing from giving any damages on the underground pipe, and an embedding auxiliary tool of an underground pipe used in the construction method.SOLUTION: The construction method of an underground pipe includes a replacement step in which an embedded first underground pipe 10 is pushed out by an embedding auxiliary tool 100 attached to a second underground pipe 20 toward a reaching pit 50 which is formed in the ground at the one side of the first underground pipe 10 from a starting pit 40 which is formed at the other end side of the first underground pipe 10 to thereby replace the first underground pipe 10 with a second underground pipe 20.SELECTED DRAWING: Figure 1
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Inventors:
Suzuki Takuma
Kunihiko Matsumoto
Kunihiko Matsumoto
Application Number:
JP2016173010A
Publication Date:
January 27, 2021
Filing Date:
September 05, 2016
Export Citation:
Assignee:
OSAKA GAS CO.,LTD.
International Classes:
E21D9/06
Domestic Patent References:
| JP1250594A | ||||
| JP63165698A | ||||
| JP61134497A | ||||
| JP2001214504A |
Attorney, Agent or Firm:
Patent business corporation r&c