At present, a lot of CFG compound foundation is applied in foundation works. Combining the Xi'an Poly International Plaza project, this paper introduces the design of CFG compound foundation and takes the bearing capacity and settlement of the compound foundation as a case, while the calculated value and the measured value are compared. As the characteristic value of the bearing capacity is lower than the measured value, formula calculation of the settlement higher than the measured value, the origin software is applied to fit the measured value. The fitted value is used to revise the bearing capacity and settlement of the compound foundation. At the same time, ANSYS simulation analysis of the compound foundation is carried out and contrast with the measured value. The result shows agree with the measured bearing capacity-settlement test, and in the single pile composite foundation settlement, pile mainly bears top load. With the number of the pile grows, the function of the soil between piles is increasing.
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