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Title:
METHOD FOR CONSTRUCTING COLUMN ROW WALL AND COLUMNAR IMPROVEMENT APPARATUS
Document Type and Number:
Japanese Patent JP2013204355
Kind Code:
A
Abstract:

To provide a method for constructing a column row wall capable of continuously forming a plurality of columnar improvement piles in the ground without gaps and highly accurately even in a narrow site.

In a method for constructing a column row wall, a columnar improvement apparatus 10 is used which inserts an agitation rod 13 to which an agitation blade 12 is attached into the ground at a predetermined depth, injects a cement-based solidifying material and mixes sediment in the ground with the cement-based solidifying material by rotating the agitation rod 13 to form a columnar consolidation body 20. A guide rod 15 extended in parallel with the agitation rod 13 and having a diameter size insertable into a pull-out hole 21 of a center shaft part 14 of the agitation rod 13 in a center part of the precedently formed columnar consolidation body 20 is attached to the columnar improvement apparatus 10. The guide rod 15 id guided by inserting it into the pull-out hole 21 of the center shaft part 14 of the agitation rod 13 in a center part of the precedently formed columnar consolidation body 20, and a next columnar consolidation body 20' adjacent to the precedently formed columnar consolidation body 20 is formed by the agitation rod 13.


Inventors:
FUJINO HAJIME
Application Number:
JP2012076351A
Publication Date:
October 07, 2013
Filing Date:
March 29, 2012
Export Citation:
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Assignee:
SUMITOMO FORESTRY
International Classes:
E02D5/18; E02D3/12
Domestic Patent References:
JPH0633463A1994-02-08
JP2001146739A2001-05-29
JPS5526354A1980-02-25
JPH0633463A1994-02-08
JP2001146739A2001-05-29
Attorney, Agent or Firm:
Osamu Hatori
Shuichi Maeda
Akihisa Iwamoto
Yoshiyuki Matsushima