When applying the old-school concept and theory of compaction, one considers the interaction of two elements: the properties of the drum and the properties of the ground. These two elements are separate from each other and interact to create the compaction properties. Andreas noticed, after watching his daughter jumping on her trampoline that she jumped much higher when she landed on the upswing of the trampoline. She gained a maximum height, with the least amount of effort, when she jumped in phase. She was taking advantage of the natural frequency in the system. Andreas thought: What if we could get the drum of the machine to find ground’s properties and use the natural frequency in the drum-soil system there as well? Is it possible to get the drum and ground to work together as one system, instead of the traditional two-system theory? This new thought is what lead to the revolutionary Seismic.
In order for Seismic compaction to be achieved, two specific conditions must be met:
The development of a special sensor and the improvement of the existing compaction meter on the drum make this technically possible.
The advantages of Seismic are many. By working in sync with the ground’s natural properties, the machine’s compaction performance is maximized and less energy is required to achieve the same compaction results.
As a result of the optimized frequency settings, Seismic provides many advantages:
- it reduces fuel consumption
- it reduces the environmental impact
- the emitted noise levels are lowered
- the risk for harmful bouncing is significantly reduced
Thanks to Seismic, the same quality of compaction can, in most cases, be achieved with a reduced number of passes. This means a savings in time, a reduction of costs and less wear and tear on our machines.
What started with an observation on a trampoline has turned into a Dynapac innovation of great magnitude. Seismic is turning the heads of our customers and our competitors.