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该文通过“数值仿真”的思路与方法，对复合地基设计中的桩位、桩长、桩距等各因素影响下桩与桩间土中附加应力和桩侧摩阻力的分布特点进行了系统的数值试验研究，得到了一些传统研究方法无法得到的定量规律，对复合地基的设计理论具有一定的发展与深化。
Through the idea and method of “numerical simulation”, this paper systematically studied the distribution characteristics of additional stress in pile-soil and pile-side friction under the influence of various factors such as pile position, pile length and pile spacing in composite foundation design The numerical experimental research has obtained some quantitative rules that can not be obtained by traditional research methods and has certain development and deepening for the design theory of composite foundation.