摘要
对原状黄土（ Ｑ４） 施加４ 种频率的等幅正弦波荷载进行动三轴试验，研究振动频率对原状黄土动本构关系的影响．结果表明，对应于４ 种频率的原状黄土的动本构关系均服从双曲线模型，但试验常数ａ 、ｂ 均随振动频率的增大而略有减小．讨论了试验常数。
Influence of vibration frequency on dynamic constitutive relationship of loess is studied under uniform sine loadings with 4 kinds of frequency.The results show dynamic constitutive relationship of loess for 4 kinds of frequency submits to hyperbolic equation.The test constant a and b decreases with increase of vibration frequency.The effects of vibration frequency on parameters of the hyperbolic equation,elastic modulus,shear modulus,damping ratio are discussed.
出处
《西北地震学报》
CSCD
1999年第3期310-314,共5页
Northwestern Seismological Journal
基金
中国地震局兰州地震研究所青年地震科学基金
关键词
振动频率
动三轴试验
原状黄土
动本构关系
Vibration frequency
Elastic modulus
Dynamic triaxial test
Loess
Dynamic constitutive relationship
