Geomechanics and Engineering

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Numerical investigation of segmental tunnel linings-comparison between the hyperstatic reaction method and a 3D numerical model

  • Do, Ngoc Anh (Department of Underground and Mining Construction, Hanoi University of Mining and Geology, Faculty of Civil Engineering) ;
  • Dias, Daniel (School of Automotive and Transportation Engineering, Hefei University of Technology) ;
  • Oreste, Pierpaolo (Department of LEGE, Politecnico of Torino)
  • Received : 2014.09.21
  • Accepted : 2017.07.19
  • Published : 2018.02.28
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Abstract

This paper has the aim of estimating the applicability of a numerical approach to the Hyperstatic Reaction Method (HRM) for the analysis of segmental tunnel linings. For this purpose, a simplified three-dimensional (3D) numerical model, using the $FLAC^{3D}$ finite difference software, has been developed, which allows analysing in a rigorous way the effect of the lining segmentation on the overall behaviour of the lining. Comparisons between the results obtained with the HRM and those determined by means of the simplified 3D numerical model show that the proposed HRM method can be used to investigate the behaviour of a segmental tunnel lining.

Keywords

Acknowledgement

Supported by : Vietnam National Foundation for Science and Technology Development (NAFOSTED)

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