论文部分内容阅读
本文介绍了镇江大港地区原状粘性土的动态模量与阻尼比的试验成果。结合工程情况,测定了不同固结应力及不同固结应力比的土的模量,这些试验资料具有归一化的特性。比较了土层水平方向及土层垂直方向的模量值,两者没有什么差别。还测定了不同振动频率对模量的响影,资料表明,频率对模量的影响近似地与频率的平方根呈线性关系。固结压力与频率对阻尼比无影响。
This paper introduces the experimental results of the dynamic modulus and damping ratio of the original cohesive soil in the Dagang area of Zhenjiang. In combination with engineering conditions, the modulus of the soil with different consolidation stresses and different consolidation stress ratios was determined. These test data have normalized characteristics. Comparing the horizontal and vertical soil modulus values, there is no difference between the two. The effect of different vibration frequencies on the modulus was also measured. The data shows that the effect of frequency on the modulus is approximately linear with the square root of the frequency. The consolidation pressure and frequency have no effect on the damping ratio.