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Volume 20 Issue 4
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Gao Feng, Li Dewu. A study on some problems concerning 3 D analysis of seismic responses of tunnels[J]. Chinese Journal of Geotechnical Engineering, 1998, 20(4): 51-56.
Citation: Gao Feng, Li Dewu. A study on some problems concerning 3 D analysis of seismic responses of tunnels[J]. Chinese Journal of Geotechnical Engineering, 1998, 20(4): 51-56.
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A study on some problems concerning 3 D analysis of seismic responses of tunnels

  • Institute of Engineering Structures Lanzhou Raiway College Lanzhou 730070

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  • Published Date: July 23, 1998
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    • Abstract
  • Using FEM and a mathematical model based on the concept of inertial force, a program for the 3 D analysis of the seismic responses of tunnel is compiled. Then, 3 D seismic responses for the portal section of a tunnel is analysed by means of FEM. In the analysis, four types of boundary conditions, excitation in three different directions, two groups of damping coefficients of the surrounding rock mass, three different widths of the finite element mesh and the effect of anti sesmic joints of tunnel structure are discussed.
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