Three-dimensional simulation for the rock fragmentation induced by TBM with GFEM

DOI

10.2991/rare-16.2016.28How to use a DOI?

Keywords

TBM; disc cutter; rock breaking; GFEM

Abstract

Theory about the interaction of TBM disc cutters and rock mass is critical for the design of the TBM machine. The numerical model of the interaction between cutters and rock, has important theoretical and practical meaning for developing a complete forecasting model of TBM performance. In this paper, one TBM disc cutter model is established based on finite element meshes. Then a model of full-face TBM cutterhead with several discs is presented for analyzing the strain distribution from start to rock failure.Meanwhile a Generalized Finite Element method (GFEM) simulation of a single crack propagation is shown in this paper. This numerical model simulates crack propagation under symmetrical loading and unsymmetrical load, respectively. The propagation path resulted in numerical simulation accords well to the laboratory tests

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - X.Y. Xu
AU  - X.H. Tang
AU  - Q.S. Liu
AU  - G. Singh
PY  - 2016/11
DA  - 2016/11
TI  - Three-dimensional simulation for the rock fragmentation induced by TBM with GFEM
BT  - Proceedings of the conference on Recent Advances in Rock Engineering (RARE 2016)
PB  - Atlantis Press
SP  - 174
EP  - 179
SN  - 2352-5401
UR  - https://doi.org/10.2991/rare-16.2016.28
DO  - 10.2991/rare-16.2016.28
ID  - Xu2016/11
ER  -