Title:
INSTALLATION METHOD OF WATER-FILLING WELL
Document Type and Number:
Japanese Patent JP2016148190
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an installation method of a water filling well capable of preventing water filled in the ground from flowing out.SOLUTION: An installation method comprises a process (a) of drilling a hole in the ground by a casing pipe 1 up to a lower part of a predetermined depth range R of including a water filling position in a hard ground layer H, a process (b) of inserting an injection pipe 2 into the casing pipe 1, a process (c) of forming a columnar disturbed ground area A over the predetermined depth range R by simultaneously injecting high pressure water from an injection hole by pulling up while rotating the injection pipe 2 after pulling up the casing pipe 1 up to an upper part of the predetermined depth range R, a process (d) of drilling the hole again by the casing pipe 1 up to the water filling position of the disturbed ground area A after extracting the injection pipe 2, a process (e) of inserting a water filling pipe 4 into the casing pipe 1 and a process (f) of inputting a well constituting material such as a filter material between a hole drilling wall 5 and the water filling pipe 4 while extracting the casing pipe 1.SELECTED DRAWING: Figure 1
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Inventors:
KUWABARA KIYOSHI
HONDA SATOSHI
SAKAKIMA RYO
NAGAO TATSUJI
YANAGI HIROBUMI
KURISU MOTOAKI
NISHIMURA TOMOAKI
ITABASHI SATORU
KOIKE TOSHIO
HONDA SATOSHI
SAKAKIMA RYO
NAGAO TATSUJI
YANAGI HIROBUMI
KURISU MOTOAKI
NISHIMURA TOMOAKI
ITABASHI SATORU
KOIKE TOSHIO
Application Number:
JP2015025472A
Publication Date:
August 18, 2016
Filing Date:
February 12, 2015
Export Citation:
Assignee:
HIGASHI NIPPON RYOKAKU TETSUDO
TEKKEN CONSTR CO
JTEC CORP
TEKKEN CONSTR CO
JTEC CORP
International Classes:
E02D19/10
Domestic Patent References:
JPH11269861A | 1999-10-05 | |||
JP2008208526A | 2008-09-11 | |||
JP2005330763A | 2005-12-02 | |||
JPS61282513A | 1986-12-12 | |||
JP2004025158A | 2004-01-29 | |||
JP2007038183A | 2007-02-15 | |||
JP2004257173A | 2004-09-16 |
Foreign References:
US20040031603A1 | 2004-02-19 |
Attorney, Agent or Firm:
Hirotaka Hatayama