ABSTRACT
In order to predict settlements and to gain a better insight into the behaviour and complex interaction of the individual components of hydroshield tunneling, a three-dimensional finite element simulation model has been developed. The soil, the tunneling machine, the hydraulic jacks, the tunnel lining and the tail void grout are represented as separate components in the model. The fully automated procedure for the 3D simulation of the tunneling process allows to perform realistic case studies for the analysis of various scenarios expected to occur at the construction site. As an example, the effect of the slurry pressure upon settlements, jack forces and soil deformations is investigated.
