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Parametric Structural Calculation of Shield Linings for Large-Diameter Tunnels Based on the Shell-Spring Model

  • Tunnel Engineering
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KSCE Journal of Civil Engineering Aims and scope

Abstract

Structural calculations are essential for segmental lining design, especially in shield tunnels with large diameters. Compared with the conventional 2D structural calculation models, the 3D shell-spring model can explicitly represent detailed structural features such as joints and shields. This study proposes a parametric shell-spring modeling method (PSSMM) that can realize segment typesetting, joint setting, and load arrangement in an automatic and intelligent manner for parametric structural calculation. The PSSMM is applied to a large-diameter tunnel design project for verification. The results show that the PSSMM is feasible for the structural calculation of shield tunnel linings and has advantages over existing methods in modeling efficiency and result visualization. Moreover, the PSSMM can effectively reflect the joint performance effect, which shows that the PSSMM can be adapted to advanced tunnel lining design.

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Acknowledgments

This study is supported by the National Natural Science Foundation of China (U21A20151, 72101093) and Natural Science Foundation of Hubei Province (2022CFB086). The authors would like to thank Wuhan Municipal Engineering Design Research Institute Co., Ltd. for providing the case information, site survey, design reports and usage log of GeoFBA software.

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Correspondence to Zehao Jiang.

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Li, L., Chen, K., Wang, J. et al. Parametric Structural Calculation of Shield Linings for Large-Diameter Tunnels Based on the Shell-Spring Model. KSCE J Civ Eng 27, 2716–2732 (2023). https://doi.org/10.1007/s12205-023-2327-7

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  • DOI: https://doi.org/10.1007/s12205-023-2327-7

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