ABSTRACT
The Finite Element Method and other procedures based on numerical analyses consist the main approach to predict ground movement caused by shield tunneling. In using Finite Element Method, however, it is important to apply an analytical model, material properties, and other analysis conditions accurately. These analysis conditions are now determined based on individual judgments of conditions at each site rather than being determined based on uniform concepts. The purpose of this study is to propose a more practical prediction method of ground deformation due to shield tunneling. In this study Finite Element Method based on the field measurement data obtained at four shield tunnel excavation sites was carried out to investigate the effects of the analysis range on the analysis results and an appropriate value of the stress release ratio.
