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Title:
STRENGTH MANAGEMENT METHOD FOR CEMENT-BASED IMPROVEMENT BODY
Document Type and Number:
Japanese Patent JP2013227724
Kind Code:
A
Abstract:

To provide a strength management method for a cement-based improvement body, capable of predicting the strength of the cement-based improvement body with high accuracy.

A strength management method for a soil cement column 1 formed in a ground G includes: a step of forming a hole 2 in the soil cement column in a hardened state at a material age of three days; a step of injecting potassium chloride solution 21 into the hole and inserting an electrically conductive cone 4 in the hole 2 to measure specific resistance; and a step of confirming the strength of the soil cement column on the basis of the specific resistance measured in the hole. Here, a value of specific resistance corresponding to a design reference strength is calculated from the specific resistance measured in the hole at a material age of three days, a uniaxial compression strength at the time point, and the design reference strength, and measurement is continued until the specific resistance of the hole measured by the electrically conductive cone becomes the specific resistance corresponding to the design reference strength or more.


Inventors:
FUJII MAMORU
Application Number:
JP2012098365A
Publication Date:
November 07, 2013
Filing Date:
April 24, 2012
Export Citation:
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Assignee:
SYSTEM KEISOKU KK
FUJII MAMORU
International Classes:
E02D1/00; E02D3/12; G01N27/04
Domestic Patent References:
JP2004044328A2004-02-12
JP2011012501A2011-01-20
JP2000046510A2000-02-18
Other References:
JPN6016007451; 高 元浩: 'エコセメントの杭周固定液への適用性に関する基礎的研究(その2 電気比抵抗による圧縮強度の予測)' 日本建築学会大会学術講演梗概集 , 201108, p.375-p.376
Attorney, Agent or Firm:
Tamio Nishiwaki



 
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