Proceedings of the 2025 International Conference on Resilient City and Safety Engineering (ICRCSE 2025)

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Research on Deformation and Force Prediction of Karst Tunnel Excavation

Authors
Jiangshuai Huang1, *
1Wuhan University of Technology, School of Transportation and Logistics Engineering, Wuhan, China
*Corresponding author. Email: 2604175332@qq.com
Corresponding Author
Jiangshuai Huang
Available Online 22 September 2025.
DOI
10.2991/978-94-6463-856-1_34How to use a DOI?
Keywords
Pier; Karst tunnel; Construction Response; Polar Analysis; Multiple Linear Regression
Abstract

This study investigates a 60-meter-long karst tunnel through a finite difference model developed in FLAC3D, incorporating pore water seepage effects. An orthogonal experimental design was adopted, constructing a standard L64.8.9 orthogonal array (nine factors at eight levels, 64 test cases) to evaluate parameter sensitivities. Range analysis revealed that the elastic modulus of surrounding rock, dry unit weight, and burial depth exerted dominant influences on crown settlement and invert heave, while internal friction angle, cohesion, Poisson’s ratio, and thickness of the initial shotcrete support predominantly governed maximum tensile stresses at the crown and invert. Multiple linear regression models were established to quantify relationships between four deformation/stress indices and nine influencing factors, demonstrating high fitting accuracy. These empirical formulations provide actionable insights for predicting and mitigating tunnel deformations in analogous karst geology.

Copyright
© 2025 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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Volume Title
Proceedings of the 2025 International Conference on Resilient City and Safety Engineering (ICRCSE 2025)
Series
Advances in Engineering Research
Publication Date
22 September 2025
ISBN
978-94-6463-856-1
ISSN
2352-5401
DOI
10.2991/978-94-6463-856-1_34How to use a DOI?
Copyright
© 2025 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Cite this article

risenwbib
TY  - CONF
AU  - Jiangshuai Huang
PY  - 2025
DA  - 2025/09/22
TI  - Research on Deformation and Force Prediction of Karst Tunnel Excavation
BT  - Proceedings of the 2025 International Conference on Resilient City and Safety Engineering (ICRCSE 2025)
PB  - Atlantis Press
SP  - 361
EP  - 377
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-856-1_34
DO  - 10.2991/978-94-6463-856-1_34
ID  - Huang2025
ER  -