The grain of Aeolian sand is fine; the geometric gradation of the particles in Aeolian sand aggregate is not good; and it is a kind of non-cohesive material. The aeolian-sand has different mechanical property from common material. The typical aeolian sand in Xinjiang

Inner Mongolia and Shaanxi are adopted to test the grain gradation

natural water content

relative density of the material. For the aeolion sand the CBR

resilience modulus

compress and shear tests are also carried out in the laboratory. The testing apparatus and methods are remade according to the property of aeolian sand。The tamping pressure-strain and other property are analyzed by the way of chart and regression algorithm. In the course of test

the authors use aeolian sands which have different dry-densities and water contents and gains the stress-strain curves in different compaction standards.