| Effect of Initial Stress Conditions on the Threshold Shear Strain of Nanjing’s Saturated Fine Sand |
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| 作者姓名： | Chen Guoxing Pan Hua |
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| 作者单位： | Institute of Geotechnical Engineering, Nanjing University of Technology, Nanjing 210009, China |
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| 基金项目： | the key Research Project of National Natural Science Foundation of China under grant No，the Special Fund for the Commonweal Industry of China，the Key Basic Research Program of Natural Science of University in Jiangsu Province |
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| 摘 要： | By using GDS dynamic hollow cylinder torsional apparatus, a series of cyclic torsional triaxial tests under complex initial consolidation condition are performed on Nanjing saturated fine sand. The effects of the initial principal stress direction α0, the initial ratio of deviatoric stress η0, the initial average effective principal stress p0 and the initial intermediate principal stress parameter b0 on the threshold shear strain y, of Nanjing saturated fine sand are then systematically investigated. The results show that y, increases as η0, P0 and b0 increase respectively, while the other three parameters remain constant. α0 has a great influence on y,, which is reduced when α0 increases from 0° to 45° and increased when α0 increases from 45° to 90°. The effect of α0 on γt plays a leading role and the effect of η0 will weaken when α0 is approximately 45°.
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Effect of Initial Stress Conditions on the Threshold Shear Strain of Nanjing's Saturated Fine Sand |
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| Chen Guoxing,Pan Hua.Effect of Initial Stress Conditions on the Threshold Shear Strain of Nanjing's Saturated Fine Sand[J].Earthquake Research in China,2010,24(1):128-136. |
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| Authors: | Chen Guoxing and Pan Hua |
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| Institution: | Chen Guoxing,, Pan Hua Institute of Geotechnical Engineering,Nanjing University of Technology,Nanjing 210009,China |
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| Abstract: | |
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| Keywords: | Nanjing saturated fine sand Initial stress condition Threshold shear strain Hollow cylinder torsional apparatus Cyclic torsional triaxial |
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