Abstract: Based on the practice of soft ground treatment by using composite foundation of deep mixing cement piles and geotextile-reinforced cushion at Wenzhou Grain Depot,some results of the in-situ test and the numerical analysis were presented.Influences of the geotextile-reinforced cushion on settlement and stress ratio of pile-soil were discussed.It was shown that problems of settlement and unusual settlement of grain depot on soft ground could be solved by this kind of foundation treatment method.It could be further applied to relevant projects.