A Study on the Dynamic Strength and Dynamic Stress-Strain Relation of Structural Soft Soil under Traffic Loading

摘要

Through the dynamic triaxial tests on structural silt soils of Tianjin, the dynamic strength and stress-strain analysis is made on the silt soils under traffic loading, and the influence of loading type, vibration frequency, cyclic stress ratio of soils are taken into account. The research shows that the dynamic strength falls as the cycle of the dynamic loading increase. It also shows that there is a critical dynamic stress ratio and a threshold of vibration frequency for structural silt soils under traffic loading. In addition, the research educes the rules of the dynamic elasticity modulus.