Abstract：With designed surface vibrating compactor，a series of vibration compacting experiments of six kinds of gravel soils are carried out in laboratory，and a large amount of data about the vibration compaction of gravel soils under different vibration masses and different vibration frequencies as well as different action time of the vibration are obtained. Based on these data，the relationships between maximum dry density and the stimulating vibration frequency as well as vibrating force are studied. The eigenvalue of grain size distribution of gravel soils，a new index reflecting the nonuniform coefficient and curvature coefficient as well as characteristic grain size synthetically，are put forward，and the better correlations between eigenvalue of grain size distribution and maximum dry density as well as vibrating parameters are obtained. The vibrating compaction performance of gravel soils is summed up at last. All of these results have important significance both to theory study and to engineering practice.
