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Volume 38 Issue 1
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ZHANG Fang, WANG Shu-peng, ZHANG Guo-feng, HU Shao-kai, FENG Ji-li. Numerical modeling of cracking of tunnel lining by combined finite-discrete element method[J]. Chinese Journal of Geotechnical Engineering, 2016, 38(1): 83-90. DOI: 10.11779/CJGE201601008
Citation: ZHANG Fang, WANG Shu-peng, ZHANG Guo-feng, HU Shao-kai, FENG Ji-li. Numerical modeling of cracking of tunnel lining by combined finite-discrete element method[J]. Chinese Journal of Geotechnical Engineering, 2016, 38(1): 83-90. DOI: 10.11779/CJGE201601008
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Numerical modeling of cracking of tunnel lining by combined finite-discrete element method

  • 1. State Key Laboratory for Geomechanics and Deep Underground Engineering, Beijing 100083, China;
    2. School of Mechanics and Civil Engineering, China University of Mining &
    Technology, Beijing 100083, China

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  • Received Date: December 23, 2014
  • Published Date: January 19, 2016
    Graphical Abstract
    • Abstract
  • By using the combined finite-discrete element method (FDEM) and comparing with the laboratory test results of prototype concrete lining segment in Japan, it is obviously found that the initial cracks, crack propagation and collapse of the concrete segment of tunnel are in good agreement with the results of numerical model. Then, by establishing the model for load structure, three dominant pressures including local bias pressure, local void behind lining (pressure free), and loose pressure on crown are respectively taken into account to investigate the process of cracking and the distribution of cracks under their different positions, ranges and magnitudes imposed on the concrete lining. This study may provide valuable insight for understanding the process of cracking in concrete lining of tunnel by means of continuous-discontinuous methods to evaluate the stability and sustainability of tunneling structures. It also lays the foundation for the crack prevention and reinforcement of tunnel lining.
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    • References (26)
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