Design of Aquatic-Sand Pile Composite Foundation Reinforcing Saturated Soft Clay Foundation

On the basis of the mechanism analysis of aquatic sand pile reinforcing soft clay,this paper discusses the calculation method of strength and settlement of sand pile composite foundation,analyzes the stress ratio of pile-soil from both the theoretical and the observational perspective,and puts forward the recommended value.A few technical key points in the design and construction of the aquatic sand pile replacement method are dealt with.By the monitoring of the sand pile and the foundational soil and the field settlement data,combining an engineering case,the calculation method and the parameters are verified.