›› 2009, Vol. 30 ›› Issue (1): 45-51.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Analysis of seismic dynamic response of layered alluvial valleys with soft interlayer

LI Wei-hua, ZHAO Cheng-gang   

  1. School of Civil Engineering and Architecture, Beijing Jiaotong University, Beijing 100044, China
  • Received:2007-10-23 Online:2009-01-10 Published:2011-01-14

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Abstract:

An explicit finite element method to analyze the surface motion of layered alluvial valleys with soft interlayer is developed based on the numerical simulation of the continuous conditions on the boundaries between fluid saturated porous medium and elastic single-phase medium. The soft interlayer of layered alluvial valleys is modeled as saturated porous medium. Numerical results are provided to illustrate the effect of the thickness and stiffness of the soft interlayer on seismic dynamic response of layered alluvial valleys with soft interlayer.

Key words: layered alluvial valleys, soft interlayer, dynamic response analysis, explicit finite element method

CLC Number: 

  • TU 312
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