A compaction plate is placed on the ground to be treated. Rapid impact compactiongenerally weighing less than 10 to 15 tonnes, is fitted to an excavator and used to transmit compaction energy to the soil via repeated impact. Without specific site precautions, a safe working distance to sensitive structures can usually be defined on the order of 8 to 10 m, as a distance of 5 to 6 m can usually be adopted for classical structures. At that distance, noise levels are lower than 90 dBA.

The 10 ton rapid impact compaction technology is the modern approach for compacting existing soils that would otherwise be excavated and compacted using a conventional roller compactor in layers of 15 to 30cm.

Energy is transferred to the underlying loose granular soils rearranging the particles into a denser formation. 10 ton rapid impact compaction can effectively densify up to 4-5m of soils without excavation, adding water or dewatering. It can also be used for fill compaction, which can place in bulk fill materials and compact it accordingly without adding any water.

For large infrastructure developments, 10 ton rapid impact compaction takes the lead due to its speed of execution that makes it much more cost effective than other alternatives.

Advantages

Treated granular soils and fills have increased density, friction angle, and stiffness

Low cost treatment to soils 3-5m in depth

Quick start as no excavation, adding water or dewatering is required

Enables shallow foundations to be used opposed to deeper more expensive foundation solutions

Construction can start immediately after work is completed as it leaves a clean site free from debris

Drop weights of 10 tonnes are used on our HC150 rapid impact compaction machines respectively and are dropped from heights of 1.2m – 1.5m onto a special foot assembly at 40 – 90 times per minute. The foot remains in contact with the ground at all times.

10 ton rapid impact compaction is a shallow ground improvement and densification technique. This method densifies shallow, granular soils, which repeatedly strike an impact plate on the ground surface using a hydraulic hammer. The energy is transferred to the underlying loose soils and regroups the particles into a denser formation. The impact locations are located on a grid pattern and the spacing of those locations is calculated by the subsurface conditions and foundation loading and geometry.