Advances in discrete element modelling of underground excavations |
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| Authors: | Carlos Labra Jerzy Rojek Eugenio Oñate Francisco Zarate |
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| Institution: | (1) International Center for Numerical Methods in Engineering, Technical University of Catalonia, Gran Capitan s/n, 08034 Barcelona, Spain;(2) Institute of Fundamental Technological Research, Polish Academy of Sciences, Swietokrzyska 21, 00049 Warsaw, Poland |
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| Abstract: | The paper presents advances in the discrete element modelling of underground excavation processes extending modelling possibilities
as well as increasing computational efficiency. Efficient numerical models have been obtained using techniques of parallel
computing and coupling the discrete element method with finite element method. The discrete element algorithm has been applied
to simulation of different excavation processes, using different tools, TBMs and roadheaders. Numerical examples of tunnelling
process are included in the paper, showing results in the form of rock failure, damage in the material, cutting forces and
tool wear. Efficiency of the code for solving large scale geomechanical problems is also shown. |
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