Based on the C.K.C cyclic triaxial testing system

a cyclic triaxial visible testing system was designed for studying the liquefaction behavior of saturated sands at the meso-mechanical level. The cyclic triaxial visualization testing was performed on saturated sands. The meso-fabric characteristics of saturated sands were studied such as motion and macro-axis orientation for sand granules

average coordination number and porosity. The results show that

sand granules continuously rearrange and redirect for the new stress state under cyclic loading; then liquefaction occurs. And the study shows that the meso-mechanism of sand liquefaction can be analyzed by the cyclic triaxial visualization testing system for real-time visible liquefaction