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Numerical Analysis of Multi-tunnel Interaction in Clay

  • Bing-Qing Zhu
  • Yin-Fu Jin
  • Zhen-Yu Yin
  • Dong-Mei Zhang
  • Hong-Wei Huang
Conference paper

Abstract

Constructing a new tunnel close to an existing one is a concerned engineering problem since the interaction between tunnels at a close range could lead to ground settlement, resulting in damage of buildings. This paper presents the particular interest in ground settlement induced by tunnel excavations and the configurations of twin-tunnel. For this purpose, the numerical model is established, in which the S-CLAY1 model is implemented. A series of numerical simulations on twin-tunnel at spacing of 1.5D, 3D and 4.5D are carried out. The simulated results and centrifuge measurements are compared for different ground loss rates and tunnel configurations. All the results demonstrate that the numerical analysis in conjunction with the S-CLAY1 model can well predict the ground settlement induced by multi-tunnel excavation, which is ready for practical engineering in tunnel groups.

Keywords

Multi-tunnels Anisotropy Ground loss Numerical simulate Clay 

Notes

Acknowledgment

This research project is financially supported by National Natural Science Foundation of China (41372285 and 51579179).

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Copyright information

© Springer Nature Singapore Pte Ltd. 2018

Authors and Affiliations

  • Bing-Qing Zhu
    • 1
    • 2
  • Yin-Fu Jin
    • 3
  • Zhen-Yu Yin
    • 1
    • 2
    • 3
  • Dong-Mei Zhang
    • 1
    • 2
  • Hong-Wei Huang
    • 1
    • 2
  1. 1.Department of Geotechnical Engineering, College of Civil EngineeringTongji UniversityShanghaiChina
  2. 2.Key Laboratory of Geotechnical and Underground Engineering of Ministry of EducationTongji UniversityShanghaiPeople’s Republic of China
  3. 3.Research Institute of Civil Engineering and Mechanics (GeM), UMR CNRS 6183, Ecole Centrale de NantesNantesFrance

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