CLC number: U458
On-line Access: 2024-08-27
Received: 2023-10-17
Revision Accepted: 2024-05-08
Crosschecked: 2021-10-20
Cited: 0
Clicked: 4420
Gang Zheng, Rui Zhu, Ji-bin Sun, Tian-qi Zhang, Jing-bo Tong, Rui-kun Wang, Yu Diao. Numerical study on failure propagation between two closely spaced tunnels[J]. Journal of Zhejiang University Science A, 2021, 22(11): 894-908.
@article{title="Numerical study on failure propagation between two closely spaced tunnels",
author="Gang Zheng, Rui Zhu, Ji-bin Sun, Tian-qi Zhang, Jing-bo Tong, Rui-kun Wang, Yu Diao",
journal="Journal of Zhejiang University Science A",
volume="22",
number="11",
pages="894-908",
year="2021",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A2000502"
}
%0 Journal Article
%T Numerical study on failure propagation between two closely spaced tunnels
%A Gang Zheng
%A Rui Zhu
%A Ji-bin Sun
%A Tian-qi Zhang
%A Jing-bo Tong
%A Rui-kun Wang
%A Yu Diao
%J Journal of Zhejiang University SCIENCE A
%V 22
%N 11
%P 894-908
%@ 1673-565X
%D 2021
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A2000502
TY - JOUR
T1 - Numerical study on failure propagation between two closely spaced tunnels
A1 - Gang Zheng
A1 - Rui Zhu
A1 - Ji-bin Sun
A1 - Tian-qi Zhang
A1 - Jing-bo Tong
A1 - Rui-kun Wang
A1 - Yu Diao
J0 - Journal of Zhejiang University Science A
VL - 22
IS - 11
SP - 894
EP - 908
%@ 1673-565X
Y1 - 2021
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A2000502
Abstract: An increasing number of engineering accidents have shown that the failure of a tunnel can propagate to a neighbouring tunnel. However, due to the complex interaction between the failed tunnel structure and the soil medium, the mechanism by which the failure is propagated between two closely spaced tunnels remains unclear. In this study, the coupled Eulerian-Lagrangian (CEL) modelling technique was adopted to investigate the influence of a failed tunnel (FT) on an adjacent tunnel, which was termed an “influenced tunnel” (IT). The safety of the IT was analysed in detail under different circumstances, such as different failure positions of the FT, different failure degrees of the FT, and different spatial relationships between the two tunnels. The simulation results indicated that the most adverse case may occur when the two tunnels are arranged as offsets and the IT is the upper tunnel. Under this circumstance, significant shear deformation may occur in IT because IT is located at the shear band of the FT.
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