What is the application range of rapid impact compaction? What is the difference between rapid impact compactors?

Application range of rapid impact compaction

The application range of rapid impact compactor mainly includes highway subgrade, bridge abutment backfill and other fields, effectively solving the half-fill and half-dig, abutment back, narrow area backfill, culvert backfill and local high fill in highway construction projects. question. In addition, rapid impact compactors are also used in the compaction of basic foundation construction in large parking lots, large ports, airports, oil depots and other fields, as well as compaction and landfill operations of hazardous substances and sanitation waste.

The rapid impact compactor can realize the overall compaction of the thick ground filling layer, effectively improve the productivity, and effectively reduce and avoid the separation and interlayer slippage caused by the layered compaction technology. The rapid impact compaction is used to compact the thick filling layer as a whole, and its compaction density is as high as 95%. rapid impact compaction can effectively solve difficult problems such as half-filling and half-digging, abutment back, and backfilling in small areas in the construction of highway subgrades and bridges. Slope slides and early road damage.

Comparison of compaction methods of rapid impact compaction

The rapid impact compaction is pressed on the soil, the hammer body is raised to a certain height and then falls, and after the cone falls, the soil is compacted through the buffer force transmission member and the ramming plate. Compaction machinery for reducing soil mass. The compaction method of the rapid impact compaction machine to the soil can be called "dynamic compaction method". For power, it belongs to dynamic compaction. It is a compaction process in the middle of compaction (deceleration motion) and foundation pile (force, constant standing) compaction. It is a result of the development trend of the compaction process. A new technology and new process.

Comparison between dynamic compaction and impact compaction

The dynamic compaction of the rapid impact compaction equipment is accelerated by static data, the maximum value of the impact force is small, the duration is long, and the kinetic energy is sufficiently released. Impact compaction is to impact the road surface at the highest rate, the highest value of the impact force is large, and the loss is fast.

Comparison of the damage of dynamic compaction and impact compaction to soil mass of old structures

The dynamic compaction of the rapid impact compaction machine can properly improve the compressive strength and compaction degree of the soil without affecting the original soil structure, and the lethality is small, and it is not easy to cause transverse waves. The super-strong cutting of the soil mass by the impact compaction cone destroys the soil structure; while the frontal face of the cone rapidly shrinks the soil mass, it rapidly squeezes the surrounding area, causing obvious cutting waves and great destructive power.

It can be seen that the characteristics of the rapid impact compactor mainly depend on the actual situation of the adjacent objects in the engineering construction. It can flexibly adjust the main parameters in the work in a wide range, control the kinetic energy of the ramming, and reduce or prevent the industrial equipment of the engineering construction from affecting the current structure. , The impact damage of the old roadbed project, remove the hidden quality and safety hazards of the settlement and deformation of the foundation at the junction, and meet the design plan for the overall compaction quality of the roadbed project.