Resumen
Considering the randomness of saturated media parameters such as porosity and permeability coefficient and the randomness of geometric boundary, based on Biot?s theory and the indirect boundary element method (IBEM), in this paper, the Monte Carlo method is used to analyze the stochastic amplification of ground motion in a saturated sedimentary valley. The stochastic seismic response law of a saturated complex site is obtained, which is useful in engineering.