In the construction of thick filling area on expressway soft-foundation, the free pore water in the saturated foundation soil of expressway is seldom discharged immediately, and the excess pore water pressure comes into being, which lead to the delay of the process of soil consolidation, and the lag of stabilization time of settlement and time limit for a project. On the basis of settlement analysis of small non-sand concrete pile composite foundation under the action of anaphase load, optimal design method of the post-processing technology for soft-foundation is researched on the basis of settlement control in this paper. Which provides theoretical basis for the design of small pile composite foundation.
