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Soil-structure interaction effects on seismic inelastic analysis of 3-D tunnels

机译：土-结构相互作用对3-D隧道地震非弹性分析的影响

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摘要

This paper investigates the importance of seismic soil-structure interaction in three-dimensional lined tunnels, assuming inelastic material behaviour for both the concrete liner and the soft rock type of soil. The seismic response of the soil-structure system is determined by the finite element method (FEM) in the time domain. Viscous absorbing boundaries are used in conjunction with the discretization of the rock medium. Both the rock medium and the concrete liner are assumed to behave inelastically on the basis of the continuum damage mechanics theory. The seismic waves are assumed to have any arbitrary time variation and direction of propagation. The system is analysed with and without soil-structure interaction in order to assess its importance on the response of the system. Through parametric studies, the influence of the most critical parameters affecting the structural response is determined and critically discussed.
机译：本文研究了三维衬砌隧道中地震土-结构相互作用的重要性，假设混凝土衬砌和软岩类型的土体均具有非弹性材料特性。土-结构系统的地震响应是在时域中通过有限元方法确定的。粘性吸收边界与岩石介质的离散化结合使用。根据连续损伤力学理论，假定岩石介质和混凝土衬砌均无弹性。假定地震波具有任意时间变化和传播方向。在有和没有土壤-结构相互作用的情况下对系统进行分析，以评估其对系统响应的重要性。通过参数研究，确定并严格讨论了影响结构响应的最关键参数的影响。

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  • 来源
    《Soil Dynamics and Earthquake Engineering》 |2010年第9期|P.851-861|共11页
  • 作者

    George D. Hatzigeorgiou; Dimitri E. Beskos;

  • 作者单位

    Department of Environmental Engineering Democritus University of Thrace GR-67100 Xanthi Greece;

    Department of Civil Engineering University of Patras GR-26500 Patras Greece Office of Theoretical and Applied Mechanics Academy of Athens GR-11527 Athens Greece;

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