The weight material of dynamic compaction machine includes: impact compaction technology, that is, the technology of using non-circular, high-power, continuous rolling impact wheel to impact and compact road surface and subgrade to achieve compaction effect. Vibratory roller acts a reciprocating impact on the paving material through the vibration of the vibratory wheel

从而在铺层内产生冲击波，冲击波在铺层材料内沿着纵深方向扩散和传播，使铺层材料颗粒由静止状态变为运动状态以达到压实的目的。

Thus, the shock wave is generated in the layer, and the shock wave diffuses and propagates along the depth direction in the layer material, so that the particles of the layer material change from the static state to the moving state, so as to achieve the purpose of compaction.

常用的振动压路机有单钢轮振动压路机、双钢轮振动压路机、轮胎压路机、静碾三轮压路机等。而单钢轮压路机通常用于路基的压实。

The commonly used vibratory rollers are single drum vibratory roller, double drum vibratory roller, tire roller, static roller, etc. Single drum roller is usually used for subgrade compaction.

从以上二者的工作原理可以看出，冲击式压实机是将振动式压实的高频率、低振幅变成了高振幅、低频率，从而在压实作用中较大的增加了对土石方的压实功能。这其中还有高低频率的交替，来实现夯实土地。

From the above two working principles, it can be seen that the impact compactor changes the high frequency and low amplitude of vibration compaction into high amplitude and low frequency, thus greatly increasing the compaction function of earthwork in the compaction. There is also the alternation of high and low frequency to realize the consolidation of the land.