Title:
浸透井戸改修工法
Document Type and Number:
Japanese Patent JP7255072
Kind Code:
B2
Abstract:
To provide a repair method of infiltration well that allows drainage of rainwater, etc., through the infiltration well when the infiltration well cannot be drained, while keeping costs down and reducing the environmental load.SOLUTION: A repair method of infiltration well to repair an infiltration layer below a bottom 11 of an existing infiltration well 10 includes an insertion step of inserting a stirring member 200 provided at least at the tip end of a shaft portion 210 with a protrusion 220 protruding to the outer peripheral side of the shaft portion 210 into the infiltration layer while rotating, and a lifting step of lifting up while rotating the stirring member 200 after the insertion step, and the insertion step and the lifting step are repeated.SELECTED DRAWING: Figure 1
Inventors:
Yasuhiro Goto
Application Number:
JP2018152101A
Publication Date:
April 11, 2023
Filing Date:
August 10, 2018
Export Citation:
Assignee:
Omtech Co., Ltd.
International Classes:
E03F1/00; E03F5/10
Domestic Patent References:
| JP2012062696A | ||||
| JP2001329602A | ||||
| JP2009127343A | ||||
| JP2006144464A |
Foreign References:
| WO2015052752A1 |
Attorney, Agent or Firm:
Ichiro Tasaka
Takeshi Sato
Takeshi Sato
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