Study on the Hysteresis Loop of the Saturated Sand in Dynamic Triaxial Test
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摘要: 通过动三轴实验研究砂土液化过程中轴向应变的发展,从理论解析和应力状态变化两个角度分析了砂土液化过程中的应力应变滞回环,分析表明,刚度的衰减与剪胀的出现直接影响了滞回环的形状,解释了砂土液化过程中应力应变滞回环出现的不规则变化情况。Abstract: The development of strain of saturated sand is studied based on the dynamic triaxial test. Hmsteresis Loop of the Saturated Sand in the dynamic triaxial Test is studied form view of the theory analytics and stress state. The result of research shows that attenuation of stiffness and appearance of shear dilatation affect the shape of hysteresis loop greatly, these explain the phenomenon in the dynamic triaxial Test, then the mechanism of the saturated sand liquefaction is more clear than before.
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Key words:
- sand liquefaction /
- stiffness attenuation /
- shear dilatation
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