| An improved method of evaluating liquefaction potential with the velocity of shear-waves |
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| 作者单位： | Geotechnical Engineering Research Institute, Zhejiang University, Hangzhou 310027, China
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| 基金项目： | 国家自然科学基金，浙江省自然科学基金 |
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| 摘 要： |
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| 收稿时间： | 24 April 2000 |
| 修稿时间： | 1 September 2000 |
An improved method of evaluating liquefaction potential with the velocity of shear-waves |
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| Authors: | KE Han CHEN Yun-Min |
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| Institution: | Geotechnical Engineering Research Institute, Zhejiang University, Hangzhou 310027, China |
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| Abstract: | According to the results of cyclic triaxial tests, a linear correlation is presented between liquefaction resistance and elastic
shear modulus, which shows the relation of G
max (kPa) with (σd/2)1/2(kPa)1/2. When applied to soils from different sites, the correlation can be normalized in reference to its minimum void ratio (e
min). Accordingly, an improved method is established to evaluate the liquefaction potential with shear-wave velocity. The critical
shear-wave velocity of liquefaction is in linear relation with 1/4 power of depth and the maximum acceleration during earthquakes,
which can be used to explain the phenomenon that the possibility of liquefaction decreases with the increment of the depth.
Compared with previous methods this method turns out simple and effective, which is also verified by the results of cyclic
triaxial tests.
Foundation item: State Natural Science Foundation (59678020) and Natural Science Foundation of Zhejiang Province (RC9609). |
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| Keywords: | liquefaction potential shear-wave velocity cyclic triaxial test |
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