The basic principles of soil compaction at the device subgrade different mechanisms. Presented designs and considered the concept cone compactor road-building machinery for deep soil compaction during the construction of the roadbed. It is noted that the destruction of the pavement roads usually occurs as a result of deformations of the subgrade, in most cases related to honeycombed soil subgrade defects are often caused by violations of the construction process technology and the use of obsolete road-building equipment. Minor violations and damage to develop into dangerous strain that creates emergency situations and leads to a significant reduction and speed limits of vehicles and, consequently, to large economic losses. The basic advantages of the new compression technology with tapered compactors. Unrolling-it is a continuous process of formation of a conical-cylindrical cavity by deformation and the rolling compaction tapered working mechanism. The challenge of new technology-to create the conditions for maximum air output from the array of material being compacted. Realized with technology called us venting and existing-compressed air. To understand the soil compaction process new work equipment is considered a power balance between the force feeding and resistance forces the introduction of the cone when it is immersed. The dependences for the calculation of the total torque and driving power, which must be applied to the driven shaft to force the device to roll tapered compactor depending on the geometric parameters of a conical working body and the physical and mechanical properties of compacted soil. New consumer properties much higher sealing means of the prior art, if the thickness of the compacted soil layer into the mound with existing technology is not exceeds two feet, then the cone compactor hardly depends on the thickness (height) packed layer. After deep compaction compactor cone and fill the pits (holes) is more durable material removed subgrade subsidence due to increase density, reduce soil tendency to water saturation, i.e., several times increases its load-bearing capacity.