Title:
液状化強度曲線生成方法、液状化強度曲線生成装置、及び液状化強度曲線生成プログラム
Document Type and Number:
Japanese Patent JP6670669
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To generate a liquefaction strength curve at a high accuracy even when a number of specimens is small.SOLUTION: A first arithmetic operation section 20 of a liquefaction strength curve generation device 14 calculates energy consumption by a specimen 48. The first arithmetic operation section 20 also generates a relationship between an increment in normalized cumulative energy consumption and a repeated stress ratio of repeated loading, the increment in the normalized cumulative energy consumption being derived by dividing the cumulative energy consumption by effective constraint pressure at a time of start of n-th repeated loading. Furthermore, the first arithmetic operation section 20 generates a relationship between the normalized cumulative energy consumption and an excessive pore water pressure ratio, the normalized cumulative energy consumption being derived by dividing the cumulative energy consumption by the n-th effective constraint pressure ratio. A second arithmetic operation section 22 calculates a number of repeated loading necessary for liquefying soil of the specimen 48, based on the relationships between the increment in the normalized cumulative energy consumption and the repeated stress ratio of the repeated loading, and between the normalized cumulative energy consumption and the excessive pore water pressure ratio.SELECTED DRAWING: Figure 1
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Inventors:
Go Honda
Yoshimasa Shigeno
Yoshimasa Shigeno
Application Number:
JP2016086474A
Publication Date:
March 25, 2020
Filing Date:
April 22, 2016
Export Citation:
Assignee:
TAKENAKA CORPORATION
International Classes:
E02D1/00; G01N3/00
Domestic Patent References:
| JP59040236A | ||||
| JP61292038A | ||||
| JP2006152795A |
Foreign References:
| US5109702 |
Attorney, Agent or Firm:
Atsushi Nakajima
Kato Kazunori
Hiroshi Fukuda
Kato Kazunori
Hiroshi Fukuda