Experimental Study on Deformation Characteristics of Soft Clay Under Cyclic Loading
The accumulated axial strain behavior of the saturated clay under the cyclic loading in partially drained conditions is analyzed.Among that,the effects of the cyclic stress ratio,and number of cycles are investigated.The test results show that the accumulated axial strain increases rapidly at the initial stage of the test,and then reaches a stable value with the increase of number of cycles under different cyclic stress ratios.Based on that,an empirical model to predict the accumulated axial strain of the saturated soft clay(Model 3)considering the effects of the cyclic stress ratio and the number of cycles is proposed,and the evaluation results of the three empirical models for the accumulated axial strain are compared and analyzed.The results show that Model 3 has a good prediction capability for the accumulated axial strain.