1. Influence on the stability of existing tunnel by relative position of new tunnel.
- Author
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Qiu, Zhihua, Wang, Hui, Zhang, Cun, Huai, Hongyuan, Pingcuozhuoma, and Xu, Zhichao
- Subjects
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TUNNEL lining , *BENDING moment , *FINITE element method , *STRUCTURED financial settlements , *SETTLEMENT of structures , *PYTHON programming language , *TUNNEL ventilation - Abstract
With the continuous development of the city, many new tunnels inevitably pass through the area near the existing tunnel, which may have a greater impact on the existing tunnel. In this paper, the finite element model reflecting the tunnel position is established by using ABAQUS software combined with dynamic simulation analysis method and Python language programming. The influence of the relative position of the new tunnel (L,α) on the deformation of the existing tunnel, the stress of the supporting structure and the ground settlement is studied. The results show that with the increase of relative distance (L), the convergence force, maximum axial force and bending moment of lining decrease gradually. When L is constant, with the increase of α, the convergence of the roof and floor of the existing tunnel increases, and the maximum ground settlement decreases. The maximum axial force and bending moment of the existing tunnel lining increase with the increase of |α|. This paper provides a reference for the rational planning and line selection of the tunnel. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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