A FINITE ELEMENT-ARTIFICIAL TRANSMITTING BOUNDARY METHOD FOR ANALYZING THE EARTHQUAKE MOTIONS IN THE UNDERGROUND TUNNEL STRUCTURES

In this pape the earthquake motions in the foundation containing a tunnel structure excited by SH incident wave or Rayleigh incident wave are computed with a finite element-artificial transmitting boundary method.The characteristics of the earthquake motions in both cases are discussed separately. The efficiency of above-mentioned method for solving these problems is tested by comparison with the boundary integral method.