厚筏基础计算及其与上部结构和分层地基土的共同作用分析

针对工程中用到的厚筏基础，用样条有限层法分析其特性，并考虑与上部结构和分层地基土的相互作用，重点分析筏基的厚度变化对整个相互作用体系的影响。在分析中，上部结构用空间子结构法分析，而分层土用分层总和法求其刚度。最后对一算例的计算，得出一些对工程有用的结论。

Analysis of interaction between upperstructure and thick raft layered soil

Spline finite layer method is used for analysing the thick raft applied in engineering construction considering the upperstructure-thick raft-layered soil interaction. The emphasis of this paper is to analyse the effect of the whole interaction system created by change of the raft thickness. The space substructure method is used to analyse the space frame, and the finite layer summation method is used for the layered soil.At the end, some results which may be useful for practical design are obtained from calculation of an engineering example.