Abstract: A series of experiments of high energy dynamic compaction(DC) were successfully executed on a rubble filled site in a coastal area for the first time in China.The experiment provided the parameters for the design,construction and detection of 10000 kN.m DC.The detected results of plate loading test(PLT) were analyzed and compared with other DC with different energy levels.Some conclusions for rubble filled site after DC were acquired that the mild P-S curves indicated that the high bearing capacity and small deformation of foundation,the density of rubble at compacted drop points and between them was nearly equal,and it was not necessary to over-increase the area of loading plate.