Experimental Study of Seepage Failure on Horizontal Ground in Centrifuge Model Test

Abstract

According to the results of the centrifuge model test to determine seepage failure phenomenon of the upper seepage flow, a critical hydraulic gradient at a boiling state value 25% higher than Taylor's critical hydraulic gradient, and a small scale effect of the hydraulic gradient with a stress level at the boiling state was observed. Also, displacement behavior of a upper ground layer was observed close to Taylor's critical hydraulic gradient. In particular, the influence of non-uniformity of the ground was small and behavior of the overall seepage failure into soil ground could be confirmed. The centrifuge model test is considered to be effective in the experimental study of seepage failure.