Transient Dynamic Response and Anti-Seismic Measures of Deep-Buried Composite Lining Tunnels Subject to Blasting SV-Wave Disturbance
Qunjie Huang1, Yu Huang2, Yangqing Liu2, Qiaoming Guo3, Zhiyun Liu4,*, Haibin Ding4, Lihua Li5
1 School of Civil Engineering and Architecture, Jiangxi V&T College of Communications, Nanchang, 330013, China
2 CCCC Central-South Engineering Company, Ltd., Changsha, 410004, China
3 Jiangxi Communications Investment Group Co., Ltd., Nanchang, 330108, China
4 State Key Laboratory of Safety and Resilience of Civil Engineering in Mountain Area, East China Jiaotong University, Nanchang, 30013, China
5 School of Civil Engineering Architecture and Environment, Hubei University of Technology, Wuhan, 430068, China
* Corresponding Author: Zhiyun Liu. Email: 
(This article belongs to the Special Issue: Health Monitoring of Transportation Infrastructure Structure)
Structural Durability & Health Monitoring https://doi.org/10.32604/sdhm.2025.073362
Received 16 September 2025; Accepted 03 November 2025; Published online 01 December 2025
Abstract
Based on the theory of wave dynamics, this study systematically derives the steady-state analytical solution for the scattering of plane SV-waves by composite lined tunnels in an infinite space using the wave function expansion method. On this basis, a theoretical calculation model for circular composite linings under blast loading is established. Based on the steady-state analytical solution, the
δ(
x)-function and the Heaviside step function are introduced to construct the Duhamel integral, transforming the transient wave problem into an integral form. By further incorporating the Fourier integral transform, an analytical solution for the transient response around a composite lining tunnel subjected to a plane blast SV wave is ultimately derived. The computational results of this study are subsequently validated against those reported in existing literature. On this basis, a systematic investigation was conducted into the influence of parameters such as blast loading duration, lining thickness, and elastic modulus on the transient dynamic stress concentration factor (DSCF) of the tunnel, incorporating engineering data from the Hongshan South Road tunnel group. The results indicate that the DSCF values in the secondary lining of the composite tunnel are greater than those in the surrounding rock. The elastic moduli of both the surrounding rock and the secondary lining have a significant influence on the DSCF of the lining. Therefore, under the premise of ensuring adequate stability of the surrounding rock, materials with lower stiffness should be preferentially selected for the secondary lining. Increasing the thickness of both the surrounding rock and the secondary lining can markedly reduce the DSCF within the lining. The analytical results can provide a theoretical basis for the anti-blast design of tunnels.
Keywords
Blast-induced SV waves; composite lining; trapezoidal quadrature; wave function expansion method; transient response
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