What is a rapid impact compactor? What is the function of rapid impact compactor?

In the construction of high-speed railway engineering, the connection between subgrade and bridges, tunnels, culverts and other structures needs to be strengthened and compacted. However, in actual engineering, the compaction of these key components is difficult for large-scale machinery or small-scale machinery to compact, which easily becomes a weak link in roadbed engineering and affects the stability of the track structure. Rapid impact compaction machine technology is to use rapid impact compactor machinery, use hydraulic cylinders to lift the tamper to a certain height, and then quickly release. Under the action of gravitational potential energy and hydraulic energy storage, the rammer hits the ramming plate with buffer pad on the surface of the soil to be reinforced. The rapid impact compactor is mounted on the robotic arm of a common loader, and can continuously compact the required reinforcement from point to surface in a maneuverable, fast and flexible manner.

In highway construction, subgrade and bridge splicing width connections often occur, but due to different designs, the types of high-rise fillers such as new and old subgrades are also different. Retaining walls, culverts, bridge abutments and other abutment backfill construction sites are relatively small, resulting in the inability of road construction machinery to roll in place. If the compaction quality in these places is not guaranteed, it will lead to subgrade subsidence and quality problems. In addition, cracks are prone to appear in the vertical and horizontal junctions of roads found in the reconstruction and expansion of roads, especially at the junction of old and new roads, which reduces the quality of the project and affects the use of roads. In order to solve the above problems, rapid impact compactors can be used for roadbed reinforcement technology in highway construction.

Rapid impact compaction equipment has small peak value, soft function, long working time, and can prevent dust and filler from splashing. Compared with vibratory compaction, the rapid impact compactor has stronger penetrating power, deeper functional range, and uniform compaction density within a certain depth range. The rapid impact compactor realizes continuous compaction through the advanced hydraulic control system. The compaction energy is divided into strong, medium and low. The compaction gear can be selected according to the needs. The compaction frequency is divided into manual and automatic operation modes. The number of clicks, and random compaction can also be controlled manually, and the transposition or transfer work can be completed conveniently and quickly under the traction of the main engine (usually a loader).

Rapid impact compaction machines can be used in a variety of terrains and operation methods, and are especially suitable for compaction treatment of high-grade highway roadbed filling. The rapid impact compactor is mainly used for the reinforcement and direct compaction of the standard roadbed in the construction of high-grade highways to reduce the settlement of the roadbed after construction. The main application parts are bridge and abutment culvert fill, fill and excavation joints, high fill roadbed, new and old roadbed joints, widening parts, chicken feet ditch, punching blind spots, inconvenient or unsuitable for dynamic compaction, etc.

The so-called rapid impact compaction technology actually refers to a new technology that uses hydraulic compactors to provide power for rapid impact compaction. This technology can accurately adjust the tamping strength according to the specific conditions of the highway project. Its flexibility and fluidity are considerable, and it can adapt to more changing construction environments. At present, most highway projects and railway projects in my country apply technology to roadbed compaction such as three-back backfilling. The emergence of rapid impact compaction technology solves the problem that surface compaction technology and strong compaction technology cannot meet diversified needs in the past. In addition, with the help of the kinetic energy provided by the hydraulic device, the tamper can quickly achieve multiple compactions in a short period of time, and under the traction of other equipment, the compaction position can be adjusted more accurately and quickly, so as to flexibly compact some special Therefore, the purpose of ensuring the stability of the subgrade construction and avoiding the settlement of the subgrade structure is achieved. This is a compaction technique with outstanding application effects and impressive overall performance. However, this application frequency does not apply frequency.

So far, many construction companies do not have a deep understanding of it. Compared with the past subgrade compaction technology, this new rapid impact compaction technology obviously has more considerable advantages. The roadbed engineering compacted by rapid impact compaction has the characteristics of good compaction effect and outstanding shearing ability. In other words, high-speed hydraulic compactor technology minimizes shear failure forces between different fill layers. From the characteristics of compaction, this rapid impact compaction technology also has the characteristics of long working time and small peak maximum force. Compared with ordinary road rollers that were very common in construction in the past, the rapid impact compactor has higher force transmission function, uniform force and accurate strength, which can effectively avoid the problem of surface hardening caused by uneven construction of roadbed, and ensure the compaction of roadbed engineering. effect and quality of subsequent use.