Experiments and Modeling of the Attenuation of the Dynamic Elastic Modulus of Saturated Red Clay under Cyclic Loading

Due to the long-term effect of cyclic traffic loads, accumulated deformation red clay subgrades is increasing, strength decreasing, and problems such as uneven settlement are occurring. In order improve stability durability subgrade, this paper analyzes effects stress ratios compactness on development dynamic elastic modulus saturated clay. This achieved through triaxial tests in Qingyuan County, Zhejiang Province, China. The results show that has an attenuation threshold ratio under loading. prediction models were constructed based confining pressure compactness, respectively. By introducing concept a relative ratio, model (as vibration times close ratio) constructed. realizes arbitrary via initial other parameters. It provides theoretical basis for rationally evaluating subgrade