朱腾明  李金梅
    （大庆油田建设设计研究院  163712）

[提要]  分析了疏桩基础的工作原理，通过一系列模拟试验得出了疏桩基础设计原则，并在某实际工程中应用，取得了比较显著的经济效益。
[关键词]  疏桩基础  承台  桩距

The working theory of rarely distributed piles foundation is analyzed. The design principles for rarely distributed piles foundation are conducted according to a series of modeling tests and applied to some engineerings, which has made larger profits.
Keywords: rarely distributed pile foundation; pile cap; pile spacing