Through Impulse-Compaction loose soil at issue can be compacted to at least reaching a medium dense bedding. The compaction work is carried out following a given grid and consisting of one to three work transitions.

Compaction depth

Quality assurance

The achieved compaction can be most effectively verified using dynamic probing or using CPT pressure probing (Cone Penetration Test) before and after the compaction. Continuous recording, storage and documentation of all relevant compaction parameters for every compaction point ensures the quality:

• Date and Time
• Accurate position using GPS-co-ordinates
• Settling per impulse and total settling
• Settling curve
• Number of impulses
• Energy provided

Distance to constructions

For adjacent constructions, roads and embankments no danger exists since the impulse energy can be regulated continuously. When needed the oscillation speed will be measured and documented.

Impulse-Compaction is versatile:

Impulse-Compaction is a new and excellent way of renovating levees where the soil has turned soft after floods or through cavities (fox, beaver etc.).

Advantages

• A significant volume reduction is achieved of the treated soil. The corresponding volume is complemented by suitable fill material (e.g. dense core material or with lime stabilised soil). Through further work transitions plugs form or an intermixing with the in-situ soil takes place.
• Through the volume reduction or reduction of the porosity the needed impermeability needed for high water protection is ensured and on the other hand cavities (fox, beaver tunnels ..) are completely closed down to a depth of at least 4m.
• The load carrying capacity and stability of levees is increased and hence a reduction of the danger of erosion is achieved as a result of impulse compaction.
• The impulse compaction leads to a guaranteed durability of the land construction.
• Short building period
• A very economic system