Title:
GROUND IMPROVEMENT METHOD
Document Type and Number:
Japanese Patent JP2015031047
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To suppress the generation of surplus soil containing a solidification material by a simple operation, in a ground improvement method in which a soil improvement body is constructed underground by making a drilling rod rotate to agitate and mix drilled soil and the solidification material together while discharging the solidification material liquid from the drilling rod including drilling blades and agitation blades.SOLUTION: A hollow frame body 9 is installed on a ground surface where drilling is started, and the inside of the frame body 9 is filled with banking 10. The ground is improved from a depth where non-improved soil exists thereabove at any point deeper than the ground surface downwards to form a deep part improvement body 6. Non-improved soil above the deep part improvement body 6 is improved from a non-improved section close to the deep part improvement body 6 upwards in a state that the banking 10 exists thereabove, thus forming a shallow part improvement body 7.
Inventors:
NAGATA TETSUYA
Application Number:
JP2013161098A
Publication Date:
February 16, 2015
Filing Date:
August 02, 2013
Export Citation:
Assignee:
KAJIMA CORP
International Classes:
E02D3/12
Domestic Patent References:
| JP2006028854A | 2006-02-02 | |||
| JPH108454A | 1998-01-13 | |||
| JP2007126817A | 2007-05-24 | |||
| JPS59145819A | 1984-08-21 | |||
| JP2005120819A | 2005-05-12 | |||
| JPS5145405A | 1976-04-17 |
Foreign References:
| GB746865A | 1956-03-21 |
Attorney, Agent or Firm:
Yasuhiro Shioda
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