Research on Dynamic Creep and Long-term Strength of Sand

By meso-analysis of the deformation of sand, this Paper discussses the dynamic creep mechanism of sandand proposes the concept of long-term dynamic creep strength. It is believed that the long-tenn dynamic creepstrength is equal to the critical dilatant stress numerically,and it can be measured by static test instead of the expan-sive dynamic creep test.This conclusion is consistent with test results.