In order to simplify test monitoring data and improve construction efficiency,pointed to the compaction indicators of deformation modulas Ev2 and foundation coefficient K30 in Beijing-Shanghai High Speed Railway,the paper carried out the correlation analysis.The results showed that Ev2 and K30 have high correlation in the regression curve.Using the regression curves can obtained Ev2 value asstipulated in the regulation,and then calculated K30 value has smaller deviation with standard ralue.This explained th...