结合最新的设计理念，从减沉设计与变刚度调平设计两方面探讨桩筏基础的优化设计。
Combined with new design ideas, from two aspects: reducing settlement design and variable rigidity design for balance settlement the optimization design of piled raft foundation is discussed.
并提出共同作用变刚度调平优化设计概念与方法，应用于7项工程，收到了大幅节约桩基造价、减小差异沉降的效果。
This paper presents the balance settlement optimum design method based on variable rigidity, which has been applied in 7 projects with excellent results obtained.
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