Seismic Response of Shield Tunnel with Double-Layer Lining

被引:0
|
作者
Guo, Xiangyu [1 ]
Cai, Qipeng [1 ]
机构
[1] Huaqiao Univ, Coll Civil Engn, Xiamen 361021, Peoples R China
来源
APPLIED SCIENCES-BASEL | 2024年 / 14卷 / 12期
基金
中国国家自然科学基金;
关键词
double-layer lining tunnel; seismic; segmental lining stiffness; burial depth; BEHAVIOR;
D O I
10.3390/app14125318
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A shield tunnel is an assembly structure composed of connecting bolts and segments, generally considered to have good seismic performance. However, there is still a possibility of damage occurring in shield tunnels under strong seismic action. Therefore, a secondary lining can be applied on the inner side of the segment lining to improve the overall seismic performance of the shield tunnel. Using the Shiziyang Shield Tunnel as a case study, this paper employs numerical analysis to examine the seismic response characteristics of the shield tunnel with overlapped double-layer lining. Subsequently, it investigates the influence of segmental lining stiffness degradation and tunnel burial depth on the internal forces of the tunnel under seismic loads. The results indicate that under seismic loading, the stress in the segmental lining exceeds that in the secondary lining, with the maximum stress being three times higher. As the segmental lining stiffness decreases, the bending moment of the segmental lining decreases accordingly, while the secondary lining bending moment remains relatively constant. The bending moment of the segmental lining consistently surpasses that of the secondary lining. Furthermore, the variation in the axial force of the segmental lining is not significant, whereas the axial force in the secondary lining notably decreases. With increasing burial depth, the bending moment of the tunnel structure initially increases and then decreases. As the burial depth of the tunnel increases from 0.5D to 2D and 5.0D, the ratio of the maximum positive bending moment between the segmental lining and secondary lining first decreases and then increases, which are 7.56, 4.78, and 7.70, respectively. Similar patterns are also observed in axial forces. A burial depth of 2D is the critical depth between shallow and deep burial. When the tunnel is shallowly buried, the overlying strata have a significant impact on the seismic internal forces of the tunnel, which continue to increase with increasing burial depth. When the tunnel is deeply buried, it is subjected to the confining action of the strata, making it relatively safe, and the internal forces of the tunnel continue to decrease with increasing burial depth. Overall, under seismic loading, the segmental lining remains the primary load-bearing structure in a tunnel structure with double-layer lining.
引用
收藏
页数:18
相关论文
共 50 条
  • [1] Analysis of the influence of the thickness insufficiency in secondary lining on the mechanical properties of Double-layer lining of shield tunnel
    Wang, Shimin
    Wang, Ya
    Lin, Zhiyu
    Song, Zihan
    Wang, Xianming
    Peng, Xiaoyu
    ENGINEERING FAILURE ANALYSIS, 2022, 141
  • [2] Research on the prestress Regulation of double-layer lining of shield water tunnel under high internal water pressure
    Wang, Shimin
    Ma, Xiaobin
    Wang, Ya
    Liu, Chang
    TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY, 2025, 155
  • [3] Study on Seismic Response and Vibration Reduction of Shield Tunnel Lining in Coastal Areas
    Dong, Sihui
    Zhang, Xinyu
    Jia, Chenxu
    Li, Shiqun
    Wang, Kang
    SUSTAINABILITY, 2023, 15 (05)
  • [4] Design A Double-Layer Shield
    Xiong, Run
    Chen, Bin
    Zhou, Bihua
    Mao, Yunfei
    MICROWAVES & RF, 2012, 51 (09) : 58 - +
  • [5] Seismic resistance and design of shield tunnel lining with a new internal lining
    Tohda, J
    Yano, H
    Tomita, J
    EARTHQUAKE GEOTECHNICAL ENGINEERING, VOLS 1-3, 1999, : 483 - 488
  • [6] Influence of secondary lining thickness on mechanical behaviours of double-layer lining in large-diameter shield tunnels
    Wang, Shimin
    He, Xuhu
    Peng, Xiaoyu
    Wang, Ya
    Li, Zhengxin
    Song, Zihan
    UNDERGROUND SPACE, 2024, 18 : 130 - 150
  • [7] Numerical simulations for allocations of internal forces on double-layer linings of shield tunnel
    Shangguan Zichang
    Li Shouju
    Li Hao
    PROCEEDINGS OF THE 5TH INTERNATIONAL CONFERENCE ON CIVIL ENGINEERING AND TRANSPORTATION 2015, 2016, 30 : 86 - 90
  • [8] A new analytical solution for shield tunnel with double lining
    Chen Q.
    Yang Z.
    Xu R.
    Huang W.
    Wang J.
    Yanshilixue Yu Gongcheng Xuebao/Chinese Journal of Rock Mechanics and Engineering, 2020, 39 : 2713 - 2724
  • [9] The longitudinal seismic response of shield tunnel
    Zhao, Boming
    Su, Yan
    Zhongguo Tiedao Kexue/China Railway Science, 2009, 30 (05): : 59 - 64
  • [10] Analysis of the Internal Force and Deformation Characteristics of Double-Layer Lining Structure of Water Conveyance Tunnel
    Zhu, Yueyue
    Liu, Cheng
    Yin, Xiaotian
    Zhang, Jingyu
    GEOFLUIDS, 2022, 2022