Research of consolidation settlement caused by shield tunnel construction

摘要

The ground settlement caused by shield tunnel construction increased gradually over time. The long-term settlement caused by shield tunnel construction was divided into three stages. The stage 2 between the end of shield tunnel construction and the beginning of subway operation was emphatically analyzed. The research methods in stage 2 were summarized as follows: the predict method based on measured data, analytical solutions and finite element method, and the research progress and relative merits for each method were discussed, and the further research was also proposed. Finally, the distribution and calculation method of the soil excess pore water pressure were discussed, and the method to determine the scope of soil excess pore water pressure was put forward.