关键词: 长期循环荷载, 饱和软黏土, 应变速率, 残余变形, 交通荷载

Abstract:

In order to investigate the deformation behavior of saturated soft clay under long-term cyclic loading, a series of indoor cyclic triaxial tests were performed on the typical soft clay in the Pearl River Delta, with the residual strain rate as the focus. Test results indicate that, under a long-term cyclic loading, the strain rate of saturated soft clay decreases with the time in a logarithmic linearity, and that the residual strain rate is greatly affected by two factors, namely the coupling of the initial static deviation stress with the dynamic one and the drainage investigation lays a theoretical foundation for the research on the deformation mechanism of saturated condition. The soft clay under long-term cyclic loading.

Key words: long-term cyclic loading, saturated soft clay, strain rate, residual deformation, traffic load