ABSTRACT
According to field investigation, a reasonable numeration model to loess tunnel is presented in this paper. The governing partial differential equations are presented based on the partially saturated soil theory of dynamics. The potential function theory and Laplace transform technique is used to solve the problem. The analytical solution of stresses, pore pressure and displacement induced by water pressure are derived in Laplace transform domain. Numerical results are obtained by inverse Laplace transformation and the influence of the saturation on dynamic response of the loess tunnel is discussed. It is shown that the influence of saturation on displacements is remarkable. The results presented in this paper are meaningful to the risk evaluation of loess tunnel.
