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- Title
地震波入射方向对高铁隧道动力响应影响.
- Authors
苏丽娟; 刘海卿
- Abstract
To investigate the effect of seismic wave along level at different incident angle of tunnel structure dynamic response rules, this paper established calculation model of high-speed railway tunnel structure and surrounding rock system using the finite difference software, and systematically studied the tunnel lining structure dynamic response rules when seismic wave incident angle changes in the horizontal plane. Analysis results show that in the process of earthquake, the peak horizontal stress of vault is the maximum, and the peak value of axial stress of tunnel is mostly tensile stress. The maximum horizontal acceleration of arch shoulder and arch foot is highest, then the arch bottom is second, and the vault is minimum. The maximum horizontal relative displacement at the arch shoulder is the largest, the arch foot is next, and the relative displacement between the vault and the arch bottom is minimum. In addition, under the action of oblique incident earthquake wave, the tunnel not only produces the circumferential deformation, but also presents the axial tensile deformation.
- Publication
Journal of Liaoning Technical University (Natural Science Edition) / Liaoning Gongcheng Jishu Daxue Xuebao (Ziran Kexue Ban), 2018, Vol 37, Issue 5, p809
- ISSN
1008-0562
- Publication type
Article
- DOI
10.11956/j.issn.1008-0562.2018.05.008