考虑地基固结和流变的上部结构与地基基础共同作用的理论研究与参数分析

Analysis of Interaction Between Superstructure, Raft and Foundation Considering Consolidation and Creep Settlement

对于粘弹性饱和地基和上部结构与基础的共同作用问题，根据文献[１］提出的能同时考虑瞬时变形、固结变形和流 变的共同作用的计算方法，利用计算机程序建立计算模型，进行参数分析。将结果与实验实测资料比较米检验所采用的粘 弹性地基模型。根据模型中四个参数对地基变形中的固结和流变的影响规律。得出了各项参数的合理取值范围，以期定量 地建立一个比较符合实际的地基模型。对地基固结流变过程中的上部结构和筏板的内力进行分析，得出固结、流变引起的 结构内力变化规律。

In this paper, the interaction between super-structure, raft and viscoelastic saturated soil foundation is studied. Based on a new method that can be used to calculate the transient deformation, consolidation and rheology of the foundation, a computer model is compiled. Analyzing the parameters in the viscoelastic model and comparing the results with the data of experiments, the reasonable parameters of the model can be obtained. Thus a reasonable model of viscoelastic foundation can be built from the laws of the consolidation and rheology. Analyzing the internal force of superstructure and raft, the law of internal force variation caused by consolidation and rheology are thus obtained.