Mechanical analysis and design approach of composite segment for shield tunnel linings

W. J. Zhang; X. Guo; A. Koizumi

doi:10.1061/9780784413449.050

Mechanical analysis and design approach of composite segment for shield tunnel linings

W. J. Zhang, X. Guo, A. Koizumi

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

3 Citations (Scopus)

Abstract

The composite segment has been used in the deep, long, large, and multi-cross-section shield tunnels of the subway, underground road, underground pedestrian passage and underground reservoir, etc. However, the mechanical behavior of the composite segment is not clarified because the structural type is complicated. Meanwhile, the selected structure model and parameters are not reasonable. Therefore, the designed composite segment lining of a shield tunnel has disadvantages in terms of safety and economy. The stiffness reduction method is proposed for considering confined effect, interface slip, local buckling and damage. The proposed design method can be used to solve the coupling of multi-material and composite segment under multi-scale, and is suitable for a rational design of the composite segment because of improving the convergence of computations and having high precision and clear physical significance.

Original language	English
Title of host publication	Geotechnical Special Publication
Publisher	American Society of Civil Engineers (ASCE)
Pages	514-524
Number of pages	11
Edition	242 GSP
ISBN (Print)	9780784413449
DOIs	https://doi.org/10.1061/9780784413449.050
Publication status	Published - 2014
Event	2014 GeoShanghai International Congress: Tunneling and Underground Construction - Shanghai Duration: 2014 May 26 → 2014 May 28

Other

Other	2014 GeoShanghai International Congress: Tunneling and Underground Construction
City	Shanghai
Period	14/5/26 → 14/5/28

ASJC Scopus subject areas

Geotechnical Engineering and Engineering Geology
Civil and Structural Engineering
Building and Construction
Architecture

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Zhang, WJ, Guo, X & Koizumi, A 2014, Mechanical analysis and design approach of composite segment for shield tunnel linings. in Geotechnical Special Publication. 242 GSP edn, American Society of Civil Engineers (ASCE), pp. 514-524, 2014 GeoShanghai International Congress: Tunneling and Underground Construction, Shanghai, 14/5/26. https://doi.org/10.1061/9780784413449.050

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AB - The composite segment has been used in the deep, long, large, and multi-cross-section shield tunnels of the subway, underground road, underground pedestrian passage and underground reservoir, etc. However, the mechanical behavior of the composite segment is not clarified because the structural type is complicated. Meanwhile, the selected structure model and parameters are not reasonable. Therefore, the designed composite segment lining of a shield tunnel has disadvantages in terms of safety and economy. The stiffness reduction method is proposed for considering confined effect, interface slip, local buckling and damage. The proposed design method can be used to solve the coupling of multi-material and composite segment under multi-scale, and is suitable for a rational design of the composite segment because of improving the convergence of computations and having high precision and clear physical significance.

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