PREDICTION OF GROUND MOVEMENT DUE TO SHIELD TUNNELING

Abstract

The analysis by FEM is mainly used for the prediction method of ground movement in excavation by shield tunneling. It is necessary to set the analytical conditions, such as the models, the various values, and stress release ratio. But they are decided by each judgement in accordance with the sites and not by a certain concept. In this study to establish the prediction method of ground movement, the influence of the analytical condition to the result, analysis method and the proper settings of stress release ratio were examined by FEM using in-situ data in shield tunneling.