Abstract
This paper is connected with the theory of viscoelasticity about the creep of the material and the simulation of curve, the research is emphasized on the sedimentation of the loess on the condition of different load, which is from the testing road in LuoSan Expressway. We put forward that the loess has the characteristic of nonlinear viscoelasticity, which can help analysis the different sedimentation of sub grade. We can calculate the subsequent sedimentation by the simulative equation. This can be a reference for predicting the subsequent sedimentation of different loess sub grade and founding the actual equation of the loess sedimentation.