论文信息 - YET ANOTHER WAY OF CALCULATING STRESSES IN A SHOTCRETE LINING

YET ANOTHER WAY OF CALCULATING STRESSES IN A SHOTCRETE LINING

A complex rheological model has been used recently at several Austrian tunnel job sites to determine stresses in a shotcrete lining. The raw data are from displacements measurements at the lining contour. The analysis uses a material model based on a thermo-chemo-mechanical approach. This paper gives a short review of the theoretical background and two case studies. The first one considers a tunnel with top heading/bench and invert excavation and the second one a tunnel with a more complex structure with side galleries and core excavation.

Bernd Moritz Dipl.-Ing.Dr. techn. | Markus Brandtner Ing.

[1] Bernd Moritz,et al. Advanced Observation Techniques for Sophisticated Shallow Tunnel Projects – Experience Gained Using Innovative Monitoring Methods at the Lainzer Tunnel LT31 , 2008 .

[2] Olivier Coussy,et al. Modeling of Thermochemomechanical Couplings of Concrete at Early Ages , 1995 .

[3] Wulf Schubert,et al. Interpretation of Displacement Monitoring Results for Tunnels in Heterogeneous Rock Mass , 2003 .

[4] Albert Steindorfer,et al. Short Term Prediction of Rock Mass Behaviour in Tunnelling by Advanced Analysis of Displacement Monitoring Data , 1998 .