| 饱和砂土的剪切波速与抗液化强度相关性研究 |
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| 引用本文： | 王建华,程国勇.饱和砂土的剪切波速与抗液化强度相关性研究[J].岩土工程学报,2005,27(4):369-373. |
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| 作者姓名： | 王建华 程国勇 |
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| 作者单位： | 天津大学岩土工程研究所；中国民航学院 天津300072；天津300300； |
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| 基金项目： | 国家“863”资助项目(2002AA615080)，天津自然科学基金资助项目(023607511) |
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| 摘 要： | 依据扭剪振动原理,开发出剪切波速与振动三轴联合试验装置。进而针对取自20 多个工程场地、埋深在20 m 以内的12种大量原状砂土,分析了同一类土、在同一固结压力作用下,原状与重塑土样抗液化强度与其初始剪切波速之间的相关性。结果表明,当判别液化的应变标准不超过6%时,土的抗液化强度与其初始剪切波速之间存在良好的对应关系。当应变破坏标准超过6%,土的初始剪切波速与抗液化强度之间不具备唯一对应关系。
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| 关 键 词： | 土的剪切波速 砂土液化 振动三轴试验 砂土抗液化强度 |
| 文章编号： | 1000-4548(2005)04-0369-05 |
Study of correlation between the shear wave velocity and the liquefaction resistance of saturated sands |
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| WANG Jian-hua,CHENG Guo-yong.Study of correlation between the shear wave velocity and the liquefaction resistance of saturated sands[J].Chinese Journal of Geotechnical Engineering,2005,27(4):369-373. |
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| Authors: | WANG Jian-hua CHENG Guo-yong |
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| Affiliation: | 1. Geotechnical Engineering Institute of Tianjin University Tianjin 300072 China 2. Civil Aviation University of China Tianjin 300300 China |
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| Abstract: | A new combined test apparatus is developed on torsion vibration principle, which can be used to measure shear-wave velocity and to determine cyclic liquefaction resistance of soil specimen simultaneously. The relation between the shear wave velocity and the cyclic liquefaction resistance is analyzed for a lot of undisturbed and remolded specimens of same kind of sand with same consolidation pressure, which are taken from more than 20 sites within the depth of 20 m under ground surface. The results show that the relation is good if the strain criterion for evaluating liquefaction is not larger than 6%. |
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| Keywords: | shear wave velocity of sands liquefaction of sands cyclic triaxial test liquefaction resistance of sands |
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