Abstract: The saturated soil is simulated as a two-phase saturated medium in theory so far. Using (u is the displacement amplitude of corresponding wave, p is the porous pressure) solutions of Biot’s dynamic equation decoupled dilational waves, associated with Somigliana’s representation integration, the numerical implementations of dynamic response for saturated soil with drainage are able to complete. These results can also be confirmed in the fields experiments. This paper describes the dynamic property of the saturated soil with drainage in dynamic triaxial test, and makes the comparison between the numerical implementations of flux drainage from equations and measured results in triaxial test. These analysis results show that the performance on computation by Somigliana’s integration with drainage is true. The analysis of dynamics response with drainage for the saturated soil employed in these achievements can be used in analyzing the soil dynamic issues in the future.

Key words: drainage, triaxial test, saturated soil