循环荷载作用下饱和软粘土非线性一维固结

ONE-DIMENSIONAL NONLINEAR CONSOLIDATION OF SATURATED SOFT CLAY UNDER CYCLIC

根据饱和软粘土地基非线性一维固结理论,针对单层饱水地基模型,运用Laplace变换求解了在循环荷载作用下的单层饱水地基一维非线性变形问题;通过Laplace逆变换,即可计算单层饱水地基在循环荷载作用下的非线性一维固结。结合单层地基在几种常见循环荷载作用下固结变形的算例,对解进行了探讨,揭示了循环荷载作用下单层饱和软粘土地基非线性一维固结的特性,得到了一些可用于指导工程实践的有意义的结论。

Analysis of nonlinear consolidation for saturated soft soil under cyclic loading is of importance in engineering practice. This paper deals with the behavior of one-dimensional nonlinear consolidation of one layer soil under cyclic loading by applying the method of Laplace transform to the nonlinear consolidation of saturated soil model. Solution is presented in inverse Laplace transform. Some characters of one dimensional nonlinear consolidation of saturated soft clay under cyclic loads are explored. Some useful results obtained from several kinds of commonly encountered loadings are illustrated in the paper,which are meaningful to engineering practice.