Dynamic Soil Compaction with free falling drop weight is a technique to increase the density of loosely stored masses.
This provides increased loadbearing capacity and reduces sentences after execution. Masses are compressed by releasing a drop weight with freefall from a crane in one predefined grid pattern. The weight should normally be between 10-20 tonnes and the fall heights of 10-20 meters. The compaction at each point continues until the crater depth does not increase or is sufficiently decreasing. The craters are filled between each crossing. It can be beneficial to compress the primary pattern with multiple compactizations before a secondary mesh is compressed with fewer loads. The method is relatively simple and quick to execute and is suitable in most loosely stored masses apart from clay fractions.
The method is mainly applicable to the following:
- Establishment of filling where it is not possible to lay out and compress layered.
- Areas where existing masses/filling should be compressed with the best possible depth effect.