饱和砂土动三轴实验应力应变滞回环研究
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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
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.
引文
1 IshiharaK .Undraineddeformationandliquefactionofsandundercyclicstress.SoilandFoundation,1975,15(1):13~28
    2 SeedHB ,IddissIM .Pore waterpressurechangeduringsoilliquefaction,JGED ,1976,103(6):517~534
    3 谢定义等.往返荷载下饱和砂土强度变形瞬态变化机理.土木工程学报,1987,20(3):57~70
    4 张建民,谢定义.饱和砂土孔隙水压力理论与应用研究进展.力学进展,1993,23(2):165~179
    5 刘 颖,谢君斐.砂土液化.北京:地震出版社,1982.40~67
    6 邵生俊,谢定义.土的变形非线性与剪缩剪胀性新认识.岩土工程学报,2000,22(1):76~79
    7 张建民.砂土的可逆性和不可逆性剪胀规律.岩土工程学报,2000,22(1):12~17
    8 李广信,郭瑞平.土的卸荷体缩与可恢复剪胀.岩土工程学报,2000,22(2):158~161
    9 谢定义,张建民.饱和砂土瞬态动力学特性与机理分析.西安:陕西科学技术出版社,1995.37~46

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