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Physical model tests and numerical simulation for assessing the stability of brick-lined tunnels

Chen, Han-Mei; Yu, Hai-Sui; Smith, Martin J.

Authors

Han-Mei Chen maggie_chen007@hotmail.com

Hai-Sui Yu

Martin J. Smith



Abstract

Nowadays, numerical modelling is increasingly used to assess the stability of tunnels and underground caverns. However, an analysis of the mechanical behaviour of existing brick-lined tunnels remains challenging due to the complex material components. In order to study the mechanical behaviour of the masonry in brick-lined tunnels, this paper reports a series of small scale physical tunnel model tests to represent the true behaviour of a real tunnel under extreme loading. Advanced monitoring techniques of laser scanning and photogrammetry are used to record tunnel deformation and lining defects. This investigation shows how these techniques may substitute or supplement the conventional monitoring procedures. Moreover, numerical analyses based on continuum and discontinuum approaches are carried out. The numerical results are compared with physical model tests to assess the overall stability of these tunnels. Predictions using numerical models under various conditions have also been carried out to show the mechanical behaviour of masonry tunnel and to quantify the influence of the boundary and loading conditions.

Journal Article Type Article
Publication Date Mar 1, 2016
Journal Tunnelling and Underground Space Technology
Print ISSN 0886-7798
Electronic ISSN 0886-7798
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 53
APA6 Citation Chen, H., Yu, H., & Smith, M. J. (2016). Physical model tests and numerical simulation for assessing the stability of brick-lined tunnels. Tunnelling and Underground Space Technology, 53, doi:10.1016/j.tust.2016.01.016
DOI https://doi.org/10.1016/j.tust.2016.01.016
Keywords Physical models Numerical simulation Tunnel stability Condition monitoring Deformation
Publisher URL http://www.sciencedirect.com/science/article/pii/S0886779816300232
Copyright Statement Copyright information regarding this work can be found at the following address: http://eprints.nottingh.../end_user_agreement.pdf

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Copyright Statement
Copyright information regarding this work can be found at the following address: http://eprints.nottingham.ac.uk/end_user_agreement.pdf





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