The greater the impact, the better. Practice has proved that in many cases, the impact force has a matching relationship with the compactness of subgrade soil, just like the driving speed of impact compactor, which has a limited range. For example, cohesive soil with excessive water content will form "spring soil" after the impact force is too large or beyond the limited range, and silt on soft soil foundation also has the same problem.

Theoretically, the greater the weight of the impact wheel, the greater the impact force, while keeping other parameters unchanged.

But in fact, we know through functional calculation that the impact force increased by improving the quality is very limited.

Moreover, under the premise of ensuring the working speed, the greater the weight of the compaction wheel, the better.

However, the greater the impact, the better. It is totally undesirable to increase energy consumption by sacrificing speed and improving the requirements for tractors.