软土地基一维非单调压缩固结性状分析

On the background of compression of soft soil subject to cyclic loading such as that beneath oil storage, one-dimensional consolidation behavior of soft soil under non-monotonic compression was studied considering the factor that the compressibility of soil under loading differs from that under unloading. It was shown by the computed results of numerical examples that the ratio of coefficient of compressibility, the ratio of load and the rate of unloading were all of significant influence on the consolidation behavior of soft soil. Once the non-monotonic compression characteristic of soil was considered, the development of settlement would be quicker than the dissipation of excess pore water pressure.