Title:
FOUNDATION LIQUEFACTION DETERMINATION METHOD
Document Type and Number:
Japanese Patent JP2016156209
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a foundation liquefaction determination method for determining the necessity of liquefaction determination of an object foundation based on a measurement result of an electric static cone penetration test (CPT).SOLUTION: The foundation liquefaction determination method for continuously measuring a tip resistance (qt), a sleeve friction (fs) and pore water pressure (u2) of a foundation on each soil layer by carrying out an electric static cone penetration test (CPT) on an object foundation. A normalized tip resistance (Qt) and a normalized pore water pressure ratio (Bq) are calculated using a specific formula respectively based on the tip resistance (qt) and pore water pressure (u2) of the foundation for each of the soil layers. With this, a soil layer in a range Qt≥7 and Bq≤0.1 is determined as a soil layer requiring liquefaction determination.SELECTED DRAWING: Figure 3
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Inventors:
HOJO YUTAKA
YAMAMOTO ISAKU
KANEMICHI SHIGENORI
YAMAMOTO ISAKU
KANEMICHI SHIGENORI
Application Number:
JP2015035233A
Publication Date:
September 01, 2016
Filing Date:
February 25, 2015
Export Citation:
Assignee:
JIBAN SHIKENSHO:KK
International Classes:
E02D1/02; G01N9/26
Domestic Patent References:
| JPS62264207A | 1987-11-17 | |||
| JP2005331288A | 2005-12-02 | |||
| JP2014122464A | 2014-07-03 |
Foreign References:
| WO2014097552A1 | 2014-06-26 |
Attorney, Agent or Firm:
Kumon enjoyment
Hisako Yasuko
Hisako Yasuko