With the fast development of the economy, a great deal of expressway has been setting up continuously. Our country region is broad. For the great quantities soft ground existence, it has become one of the important topics that the expressway takes to set up to the research on the soft ground corresponding problems.Because of the characteristic of the soil, the settlement theories and calculation method are impossible to match the real. This paper commenced from the basic characteristic of the soft soil, which combined the expressway construction on the soft ground stabilization survey, and study the basic principle and the influenced factor of soft ground settlement, especially research the relation of lateral displacement and settlement, at the same time, judged the consolidation of soft ground.Back analysis is to analyze and carry on the feedback analysis to the engineering from time domain and spatial domain. It is a dynamic process. It not only includes various static state analysis carried on in normal regulations design period, but also includes the construction process, and according to the real settlement or other information carries on a series of feedback processing. It connects the design and construction closely. This paper analyzed the model parameter to estimate the post-construction settlement and forecast the settlement curves. This paper also compared the real curves with the theory curves and forecast curves to evaluate the treatment methods. |