Numerical modelling of tunnelling process in which a mechanised TBM shield is used

The increasing growth of urban underground infrastructure requires implementing the even more precise calculation models that are to be used for the impact of tunnelling on the surroundings prediction. During the presentation, there will be discussed a 3D numerical model MES that is used for the analysis of the impact of the TBM tunnelling process on the soil deformation and internal forces in tunnel’s casing. Creating numerical model and reading the data was fully automatised thank to the original Python script. Qualitative and quantitative verification of the model was conducted on a basis of an example of a tunnel tunnelled by an EPB shield, as a part of blue metro line MRTA in Bangkok. The prepared model was used for observing the complex mechanisms between the EPB shield, tunnel’s casing and soil centre. Additionally, the impact of technological parameters was defined quantitatively

dr inż. Maciej Ochmański, Silesian University of Technology

An academic at Civil Engineering Department of the Silesian Technical University. His doctoral dissertation was titled „Numerical analyses of the effects of tunnels construction”. He authored and co-authored several publications in technical magazines, including four ranked in Master Journal List.  He presents the outcomes of his research during the national and international conferences. His professional interests are advanced numerical models used for the analysis of tunnels construction effects, automatic calculation models for the tunnels bored mechanically, interactions between TBM cutting disc and the soil centre as well as the seismic answer of tunnel casing construction and implementation of constitutive models in Fortran language.