Triangular Ellipsoid Impact Compactor

Traditional approaches to compaction have centred on compaction plant which has relied on static weight, kneading action or vibratory rolling of the soil to achieve the desired improvement in strength and bearing capacity. However, the demand for more efficient, economic and reliable compaction has led to the development of a radically new type of compaction plant, the non-circular impact compactor.
The impact compactor is a mobile dynamic compactor and the design is based on the simple principle whereby compaction effort is derived from the energy of the drum falling from a corner to a flat as the shaped drum is towed along the ground. Because of the high energy delivered by each blow, the impact compactor is capable of producing effective compaction in thicknesses considerably greater than previously possible.
The distinguishing feature of all impact compactors is their non-circular compacting drums which have a series of points alternating with flat compacting faces. Impact compactors vary in relation to shape (3 or 5 sided) mass and energy rating. During the compaction process, the impact compactor drums are towed along the ground by a wheeled tractor at a relatively high speed of 10 to 12 km/h, compared to typical conventional roller speeds of 2 to 3 km/h. This operation causes the drums to rotate by contact with the ground and to alternatively rise up on their points and then fall downward onto their compacting faces. This action produces a series of high impact, high amplitude blows.