Comparison between two tunnel face stability calculation methods

This paper gives an overview of calculation results for tunnel face stability by using two different calculation methods and compares these results with the applied confinement pressures during the first tunneldrive, with a slurry type TBM, in the Pannerdensch Canal Tunnel project. The settlements that occured during this process are evaluated in relation to the applied confinement pressures and the surrounding geotechnical circumstances.