The shield TBM method is suitable to construct a tunnel at urban areas because it can re-duce blast noise and ground loss. In this study, a new method was proposed to take account of gap param-eter and compared with the DCM which has been most generally used for shield TBM modeling. To this end, numerical analysis was executed by using FLAC 2D for a shield TBM tunnel excavated in a single weathered soil layer with 30 m deep rock cover. Finally, the proposed method of this study was verified by analyzing and comparing the outputs with the DCM.
Menu