Experimeatal study on quantitative relationship between shear wave velocity and cyclic liquefaction resistance of saturated sand

CHENG Guo-yong; WANG Jian-hua; ZHENG Xian-min

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Experimeatal study on quantitative relationship between shear wave velocity and cyclic liquefaction resistance of saturated sand

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- Experimeatal study on quantitative relationship between shear wave velocity and cyclic liquefaction resistance of saturated sand
- Vol. 28, Issue 4, (2007)
- 作者机构：
  
  1. 中国民航学院土木工程系,天津,300300
  2. 天津大学岩土所,天津,300072
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU435
- Online First：05 September 2013，
  
  Published：2007
- 稿件说明：
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CHENG Guo-yong, WANG Jian-hua, ZHENG Xian-min. Experimeatal study on quantitative relationship between shear wave velocity and cyclic liquefaction resistance of saturated sand[J]. 2007, 28(4).
DOI：

CHENG Guo-yong, WANG Jian-hua, ZHENG Xian-min. Experimeatal study on quantitative relationship between shear wave velocity and cyclic liquefaction resistance of saturated sand[J]. 2007, 28(4). DOI：

摘要

根据饱和砂土剪切波速与其抗液化强度的相关性原理，利用剪切波速与振动三轴联合实验装置，进行了控制饱和砂土初始剪切波速的振动液化实验，依据实验结果建立了剪切波速与抗液化强度的定量关系。最后用现场勘查数据对此定量关系进行验证，结果表明：该关系式对实际 66 个未液化地点的判别准确率达到 81.2 %；对 108 个实际液化地点的判别准确率达到 62.8 %；平均判别准确率达到 69.5 %。

Abstract

According to the dependence between Shear wave velocity and cyclic liquefaction resistance of saturated sand

combined tests were carried out for remoldeld saturated sands

during which the shear wave velocity of saturated sand sample was fistly tested in the cyclic triaxial cell and then the normal cyclic liquefaction test performed. Then

by analysing the test results

the quantative relatiobship between shear wave velocity and the cyclic liquefaction resistance of saturated sand was obtained. At last

174 earthquake sites data was utilized to verify the reliability of the relational expression. The results show among the 66 non liquefied sites the correct rate of the expression is 81.2 % and among the 108 liquefied sites the correct rate is 62.8 % in general

the average correct rate of the relational expression is 69.5 %.

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